Oninit® Archive
Results for “onstat -R”
Large memory segment vs smaller ones
Hi Dennis. Yes: " vmo -p -o v_pinshm=1". You must have RESIDENT 2 or more for large pages as they must be pinned. The "rsam" pool is in the dynamic segment. You need RESIDENT 2 or more. It doesn't sound like the problem is with the buffer pool but the "rsam" pool. Your BTR is fin…
Changing DBSPACETEMP run-time
Hi, IBM Informix Dynamic Server Version 11.70.FC5XE Please, is there a way to change DBSPACETEMP for a session inside 4GL? ------------------------------ Sincerely, Dennis ------------------------------…
Buffer wait occurs when performing INSERT in multiple sessions
You have to only peripherally related problems. The issue about not enough KAIO resources is an operating system tuning parameter. You can read the maximum value and set it here: $ cat /proc/sys/fs/aio-max-nr 65536 echo 131072 >/proc/sys/fs/aio-max-nr # set new maximum And see …
Index page size recommendations
16 k for indices is a good starting point. After that is depends on the data. If I am using TS then I would tend to have dedicate spaces as well. And yes you need a buffer pool for each page size. Paul Watson Oninit LLC +1-913-387-7529 www.oninit.com Oninit® is a registered trade…
onstat statement
Dears, Kindly let me know if I run onstat - g stm command to check current sql statement which give the Session ID but sometimes if I try to kill the session by onmode -z <id> , it doesn't kill the session. So do I need to connect the session id with onstat -k session id ? kindly…
Block during checkpoint
I wrote you a LONG reply yesterday, but for some reason it would no save and just kept spinning. Several hours later the form just cleared itself and I have start over. So here goes, this will be shorter so if you need clarification on anything, reach out to me directly. Several …
ADO - activex data object
What do I require, to connect "ado activex data object" to Informix ? AIX 7.2 IBM Informix Dynamic Server Version 12.10.FC9W1 Regards Dirk…
Problem with backup
Original post: Hello, every time we release a copy with onbar , the Database server gets blocked one to three minutes. Is this normal ? Our version is 12.10.FC3WE and the command is onbar -b -w Thank Response: The answer is possibly. At the start of every backup, the server…
Bufferpool configuration
Hi informix community, on a SPARC M10-1 Server we have a informix 12.10FC10 instance. Currently this instace use a buffer pool with around 7GB. Now i have the chance to configure the buffers up to 40GB. I would like to use the following configuration of the buffer pool: BUFFER…
BUFFERPOOL Configuration
Oh, one more reason to use multiple page size buffer pools: - To be able to isolate the IOs against some objects from those of other objects so that, for example, index IO activity does not flush data pages from the cache.…
listener-thread@soc_be.c:3073: err = -25582:
Adding Version details Informix Version : IBM Informix Dynamic Server Version 12.10.FC6 O/S Version : Red Hat Enterprise Linux Server release 6.9 Thanks & Regards, Karthik Rajan…
Informix and speculative execution
Hi all, I have seen speculative execution patches for Firefox and SQL Server. Are there speculative execution patches for Informix in progress? There is no IBM Flash for Informix Dynamic Server and speculaative execution! Regards, David.…
Informix 12.1 Blocking Checkpoints
> On 7 Nov 2017, at 10:48, NATYURAL HORACIO <horacio.natyural@gmail.com> wrote: > > Hi, > > > Based on the current workload, the physical log might be too small > to accommodate the time it takes to flush the buffer pool during > checkpoint processing. The server might block tran…
Threat : swth:sbt_subclass_lpgsrc_ol_796
Original post: Platform : AIX 7 Informix version: 11.70.FC7W3XC Config : 1 primary, 1 secondary and 4 RSS Note : We do turn on the large page on AIX level I run onstat -g rea -r 1 and occasionally see the threat name swth:sbt_subclass_lpgsrc_ol_796 Questions: 1) What is this …
Rovoke insert permission but still can insert
I am doing it at the command line in the server directly in the directory C:\\\\Program Files\\\\IBM\\\\IBM Informix Dynamic Server\\\\11.50\\\\bin…
identify what is allocating memory
original post: Hi , How identify what/who is consuming memory in a specific virtual memory segment ? With onstat -g ses , there is no session with high memory allocated. The amount of users sessions is keeping at regular average... No buffers pool was allocated automatically (I…
UPDATE STATISTICS low in parallel?
Hi, Thanks to help from Jacques I got this working in a test system. Performance is excellent compared with single threaded performance. I can confirm that it appears to need in addition to what is in the manual, i.e. fragmented indices: - AUTO_STAT_MODE must be 1. - STATCHANG…
Buffer pools in 11.50.FC5
IDS 11.50.FC5 Solaris 10 Sparc I need some guidance on BUFFERPOOL. I am receiving the WARNING: Buffer pool size may cause Dynamic Server to get into a locked state. Recommended minimum buffer pool size is 4 times maximum concurrent user threads. I am not sure how that translat…
Odd Bufferpool Behaviou
Original post: AIX 6.1 IDS 11.70.FC8X8 I have a new machine with a lot of extra memory. Given that, I added a bunch of new buffers (4k, 8k, & 16k) and went to town testing away. Long story short, with all those new buffers, I get virtual segments added at startup. In onstat -g …
LRUS_MIN MAX DOES NOT WORK
When dirty buffer is over 4000 (resulut of onstat -R), I check onstat -F and I found that my 8 cleaners are in state "I".…
sysmaster tables for onstat -u and onstat -g ath
Greetings. In my quest to produce Perl scripts that consolidate the output of onstat commands, it has been mostly straightforward to break up a line into into its component pieces of data. For example, onstat -u, every line has exactly one string in every column. Not so for som…
onstat -a order
Hi All, On Informix v.12.1, what is the order of the results for 'onstat -a'? Our file is 234MB large, so I'm breaking it down into the individual pieces. I've gotten to the 'onstat -g all' section, but am stuck on the section with the heading: Thread Thread id Cancelled I/Os C…
12.10.FC6 Mac port released
IBM Informix 12.10.FC6 release for Mac OS is officially available! John F. Miller III STSM, Lead Architect miller3@us.ibm.com 503-747-1366 IBM Informix Dynamic Server (IDS)…
onstat -d
I am sure it must exist Does someone have a script to give a pretty layout of onstat -d ............. The dbspace, and following that the chunks belonging to that dbspace ? My company decided not to stick to naming conventions, and now I am trying to match dbspaces with chunks …
onstat -d
Hi, I see a line in onstat -d output that say metadata Size Free Bpages Metadata 17324 4005 17324 I see the free space was drastically reduced when I run cdr commands. My question is, what will happened with that space if it gets empty ? Thanks in advance. --001a11c11a8c11f…
RSS not working
-bash-4.2$ onstat - IBM Informix Dynamic Server Version 11.50.FC9 -- On-Line --…
Physical Log Size
IDS 11.70.FC8 AIX 1 6 00CC96664C00 I received the following message in the online.log file ..... is it something to be concerned about ? Based on the current workload, the physical log might be too small to accommodate the time it takes to flush the buffer pool during checkpoi…
Onstat -d
Hi, Every day I run onstat -d command, and notice that every 3 or 4 weeks rootdbs has from 2 to 8 free pages less. Why this happend? Enviado desde mi iPhone…
new bufferpool
original post This concerns ids12.10TC3IE . These are the old lines in my onconfig... #BUFFERPOOL default,buffers=10000,lrus=8,lru_min_dirty=50.00,lru_max_dirty=60.50 #BUFFERPOOL size=4K,buffers=100000,lrus=8,lru_min_dirty=20.00,lru_max_dirty=30.00 #BUFFERPOOL size=16K,buffers=…
Informix upgrade
Can we upgrade informix from Dynamic Server Version 11.70 to 12.1 workgroup edition directly?…
Buffer Size and Use
Folks, We recently had a conversation with a well-respected name in the Informix world, recently, concerning our bufferpool configuration. When exported, our database takes up only about 18 GB. We had a buffer pool of 12 GB, figuring that the more memory resident, the better. Al…
when use IfxDataReader.GetIfxDateTime to NULL valu
Hello, The version of Informix products in my environment is: Database server: AIX IBM Informix Dynamic Server Version 10.00.FC5 IBM Informix CSDK Version 2.90 IBM-ESQL Version 2.90.FC4 Client: PC Windows IBM Informix-ESQL 3.70.TC5DE.…
onstat -g ckp Question
When we are transferring an index from the primary to the secondary we = have a problem. All the work and maintain a clean buffer pool on the primary= is done all the index is being built. However on the secondary there is no= way to keep the buffer pool clean. If we do not keep …
problem with IDS 11.70FC4 and RedHat 5.6
This is the output of onstat -g seg as of 19/02/2013 9:22 CST IBM Informix Dynamic Server Version 11.70.FC4 -- On-Line -- Up 16:08:10 -- 5850380 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 9437191 52564801 44000000 3843305472 45472304 R* 938305 2 9469960…
Re: how many of BUFFERS size is reasonable?
The description is wrong. Maybe I'll send a note to the documentation group about it. The onstat -R display, since 11.xx at least, shows only LOW and HIGH which is correct. Art Art S. Kagel Advanced DataTools (www.advancedatatools.com) Blog: http://informix-myview.blogspot.co…
how many of BUFFERS size is reasonable?
Hi Joe, Another thing to consider is the output of onstat -R, which will show you how many buffers are low or high priority. I don't know the the exact algorithm used by Informix, but essentially the more frequently access buffers are high priority. Certain types of pages, such…
DB_locale or local naming convention
Hi, I already mention the informix version. IBM Informix Dynamic Server Version 11.70.TC1IE…
Error -556 on @ reference
In IDS_A have a stored procedure do_some that has a insert into a local table. In IDS_B have a stored procedure do_some that does: call base@IDS_A:do_some(); Calling this sp works ok. In IDS_C i try to run: call base@IDS_B:do_some(); Fails with error -556 Cannot create, drop,…
Bufferpool max size in Windows Server 2008 64bit
Hi, I restarted engine once more and now it looks right. So, probable user error! Are there other memory parameters that would benefit from very large values? Thanks, Lauri d:\\\\Program Files\\\\IBM\\\\Informix\\\\11.70>onstat -X IBM Informix Dynamic Server Version 11.70.FC…
onstat errors
Hi Art We are old dostats fans. Last version we compiled is: dostats: Features Version 6.00, Source Revision: 1.172 ! Copyright 1996-2009 by Art S. Kagel. License for private usage (including use by commercial enterprise for its own needs) is granted. Commercial and exploita…
onstat & SMI
Good day. Is it possible to get information from SMI similar as "onstat -g sql <sid>" shows? Especially we need current sql and last parsed sql... Thank you in advance. P.S. IDS 11.50FC9 for AIX.…
buffer pool and dbimport (11.70FC5)
Hi, I'm facing a problem and i don't understand how is it possible ... I'm loading (dbimport) a big table (> 3 Million records) and my buffer pool becomes quickly full (700000 buffers with LRU min = 0.50 and max 1.00). Checkpoint is not trigger until CKPINTVL (180) and you can im…
shared memory
This concerns IDS 11.70.TC5IE on Windows Server 2008 . This article http://publib.boulder.ibm.com/infocenter/idshelp/v117/index.jsp?topic=%2Fcom.ibm .perf.doc%2Fids_prf_750.htm defines buffer_value = (BUFFERS * pagesize) + (BUFFERS * 254) + 250000and goes on to say: âIf you hav…
Disabling LRU flush
Hi, IFX 11.70 FC 5 Innovator-C , Linux 64bits OpenSuse. I'm working with database load. Basically I'm using HPL, unfortunately some tables have huge rowsize0 (1 row size = 2 pages) and lvarchar datatype which force use deluxe mode. Consequently use buffer pool , and then LRU fl…
BTR on each buffer pool?
This concerns IBM Informix Dynamic Server Version 11.70.TC5IE . I have a 16k page size space where I put a temp space and all primary and foreign key indexes. Since I can select nbuffs, bufwaits, bufwrites, pagreads from sysmaster:sysbufpool I can get the BTR on each pool. Should…
LRU Queues - more or less
These are two theoretical questions (based on a current situation) 1) Is it better to use fewer larger LRU queues or many small queues if there are a small number of dirty buffers? 2) Is it better to use fewer cleaners and keep them active or is there a way to balance cleaner l…
Correct method of sizing resident pool...
Hi all, I have a script that reads an onconfig file and outputs an estimated memory footprint of the instance. However, I am finding it hard to accurately predict the resident section size. According to http://publib.boulder.ibm.com/infocenter/idshelp/v111/index.jsp?topic=/com…
IDS 7.31 UD5 data(base) recovery
Informix Dynamic Server Version 7.31.UD5 I understood that IDS 7.31 entered End Of Support in September 2009 ( 2 and a half years ago) I hope this is not a business critical system…
enterprise replication time to replicate data
IBM Informix Dynamic Server Version 11.50.FC6 Question for enterpise experts Does anyone know a command that will give me time that it takes to replicate data to a node? for example i update on server a and it replicates to server b . How long did it take? cdr view profile gives …
ZFS and Informix
I'm well aware that the buffer pool has nothing to do with the underlying file system. We're just trying to figure out what scales better. We know that ZFS's ARC scales very well (the algorithms come from IBM !!). I trust though the people that have been out in the trenches worki…
Informix Status Explanations
hi, can anyone shed light on this for me. what does this mean? status yield bufwait- does it mean i'm lacking buffer pools? what does this indicate? cond wait netnorm - session is not doing anything. running- does it mean the sql is currently running. yield lockwaits - does th…
Increase buffer pool size
Dear All, i found the following line in the message log of an IDS 10.00 on a Linux Box having 3GB memory: WARNING: Buffer pool size is too small for read ahead operation I would like to increase this parameter, as obviously it has the default size of 5000 buffers with a 2k page…
Informix question
Original Post: Hi, I have two confused question. 1 When a update SQL will update totally 3 pages in bufferpool? How many mutex IDS will allocate for this thread in the buffer-head entry in the buffer table? 2. What the temporary sbspace will be used for? thanks for your time.…
Over 1,000 days of 24x7 database uptime!
On 29.07.2011 20:38 Lester Knutsen wrote: > From one of our customers, their Informix server hit 1,000 days today > .... congratulations;) > > IBM Informix Dynamic Server Version 10.00.FC8 -- On-Line -- Up > 1000 days 00:31:45 -- They beat mine just bit ... IBM Informix D…
Setting up HDR- First Time -11.70 Innovator-C
Hi, I am setting up HDR for the first time. onstat - on primary shows IBM Informix Dynamic Server Version 11.70.UC2IE -- On-Line (Prim) -- Up 0:11:5s onstat - on secondry shows IBM Informix Dynamic Server Version 11.70.UC2IE -- Fast Recovery (Sec) -- Up 00s onstat -m on sec…
ISAM error 197: Partition recently appended to
Informix Dynamic Server Version 9.40.UC5 SUSE Linux Enterprise Server 10 (i586) I have done a level 0 backup directed to /dev/null and tried again. still it is throwing the same error.…
Jobs very slow
What versions of IDS are you using. You have to tell us more on what you have to play with. You can use onmode -Y <sid> 1 after identfying the session (onstat -g ses) of your program running. This will generate an sqexplain.out.<sid> for your session. You can also use SQLTRAC…
Tool to estimate the size of an index
Sorry, I forgot to provide the version of the installation: IBM Informix Dynamic Server Version 11.50.FC4 Operative System: AIX Version 6.1…
onstat -l
I'm seeing a couple of extra lines in the output of 'onstat -l', which I can't find documented in the 11.50 administrators guide and references. The lines in question look like this: Buffer Waiting Buffer ioproc flags L-1 0 0x1 0 L-2 0 0x1 0 The exact lines varies (L-1 through…
Can't access sysindexes remotely
Hi, We are using IBM Informix Dynamic Server Version 11.50.FC6 using Platform: SunOS 5.10 Generic_125100-09 sun4v sparc SUNW,Sun-Fire-T200 Thanks…
optimum usage of resources
The onstat -g seg shows IBM Informix Dynamic Server Version 9.40.TC9 -- On-Line -- Up 07:08:41 -- 1319232 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 1381386241 1381386241 c000000 302317568 226624 R 73772 36 1381386242 1381386242 1e050000 1048576000 326…
RE: Long Checkpoints with HDR and 11.5.
Art Kagel wrote: No, Jacques, IDS secondaries do not share buffer pool updates with the primary. Only the logical log buffers are transferred, so only the server's transaction rate would affect the data transfer rate between the servers and that would be about the same regardles…
Network Buffer Pools
IDS 11.50.FC5 AIX 5.3 For HDR replication between two AIX 5.3 servers, is there a suggested value for the following environment parameters: 1. IFX_NETBUF_PVTPOOL_SIZE 2. IFX_NETBUF_SIZE 3. Sqlhosts option b (client buffer size) The primary has 64GB of memory while the second…
onstat -g ses output
Greetings, Can someone define or point me to a document that defines all of the output from the onstat -g ses session_id command? Specifically, I am interested in knbowing what this output section means: Host variables : address type flags value ---------…
Ontape Backup Problem
I have only three multiple Virtual segments (V), one (M) and one (*R) segments. Here is the output for onstat -g seg IBM Informix Dynamic Server Version 9.40.FC2 -- On-Line -- Up 6 days 11:45:3 3 -- 999424 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 0 13…
Informix Dynamic Server Software Downloads
It appears IBM has cleverly hidden the IDS downloads again on the Passport Advantage Website, at least from my prying eyes. I can find the Solid DB and the DB2 links just fine. Does anyone out there in IIUG-land with a Passport Advantage account know where IBM has stashed the dow…
OPTCOMPIND and perl
Anyone know if I can change OPTCOMPIND after establishing a DB connection or does it need to be set before connecting? ta SLES10 SP1 IBM Informix Dynamic Server Version 10.00.UC5…
physical log might be too small
Hello, We are getting following error while checking checkpoints "Based on the current workload, the physical log might be too small to accommodate the time it takes to flush the buffer pool during checkpoint processing. The server might block transactions during checkpoints. I…
Informix Dynamic Server Scheduler question
Hi! I'm working on a project at my faculty. It's a java desktop application with an informix database. I have a problem using informix dynamic server scheduler. I have a particular table in my database. This table contains records that are inserted by the desktop aplication I'm …
Checkpoint Duration
Here is onstat -R tail: 360 dirty, 319885 queued, 320000 total, 524288 hash buckets, 2048 buffer size start clean at 2% (of pair total) dirty, or 25 buffs dirty, stop at 1% 0 priority downgrades, 0 priority upgrades If I increase CLEANERS from 96 to 128, will there be any effec…
IDS 9.40 End of Support Imminent
I have seen a number of posts on CDI recently related to IDS 9.40 As per the announcement on September 7th 2007, effective on the dates listed below, IBM will withdraw support from the following product releases licensed under the IBM International Program License Agreement: 9…
IDS 7.31 Solaris8 - Long Checkpoints
Hello, Here's the output op onstat -g seg: Informix Dynamic Server Version 7.31.UD1 -- On-Line -- Up 10:22:10 -- 412752 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 94000 1394493441 a000000 268435456 24820 R* 31026 1742 94001 1394493442 1a000000 15360000…
Buffer Pool
Hi, We are running informix 9.4 FC5xs with SAP. Our SAP admin recently advised that the INFORMIX buffers were set to low. Based on some SAP recommendation, we increased the buffers parameter from 301049 to 501049 (about 600Mb to a little les than 1Gb. 2 days later I found the fo…
DEADLOCK
Hi, On occassion (3 times in a year), our Informix 7.31 system running SAP will dump a number of files within the /tmp filesystem. All files have the same naming convention ONSTAT_DEADLOCK and will be anywhere from 370Mb to 578Mb. Does anyone know under what conditions will the …
Fatal error
Dear Friends, When i am try to onlining the informix i got this messages informix@DBSERVER> oninit -v -y Checking group membership to determine server run modesucceeded Reading configuration file '/export/home/informix/IDS0/etc/onconfig.voms'...succeeded Creating /INFORMIXTMP/.…
Re: Best Use of Free Memory
David, I see the confusion now. The English phrase, "Needs to acquire a buffer," is too vague. There are really two major cases, but the manual is only addressing one (the rarer one). The cases are: 1. The required data is already in the buffer pool. In this case the thread nee…
Re: Best Use of Free Memory
On Tue, Oct 28, 2008 at 7:14 PM, david@smooth1.co.uk <david@smooth1.co.uk>wrote: <SNIP> > > > > As the number of buffers go up the lru chains get longer and so the > time to find a buffer can increase (if the buffer is further down an > LRU queue > at the time). > David, If the…
Best Use of Free Memory
BUFFERS is generally a good place place to use extra memory, subject to a couple caveats: 1. If the working set already fits in the current buffer pool, adding still more buffers will not produce any noticeable performance increase. Check "onstat -g buf" output for your %cached.…
use stored proc that return multiple columns in a query
forgot to include version info: IBM Informix Dynamic Server Version 10.00.UC6W5 -- On-Line -- Up 207 days 22:14:39 -- 1441100 Kbytes…
installing informix dynamic server in linux
hi, I'm new to informix... I tried to install informix dynamic server(iif. 11.50.UC2E.Linux-RHEL4.tar) in my linux machine. I'm getting an error like this... One or more prerequisite system libraries are not installed on your computer. Install libpam.so.0, libncurses.so.5…
If there were no onstat...
IDS v10.00.UC8 Solaris 8 6-1, 175 Bats: Left Throws: Right Born: 11/17/1967 in Independence, MO. Pretend there was no onstat -x (or any onstat) to get info about open transactions. You wanted to find out if there were any open transactions in a logical log file older than the cu…
Informix Dynamic Server v 11.50 Developer's Edition
Does everyone know that the Informix Dynamic Server Developer's Edition v11.50 that you can download from the IIUG Web site (www.iiug.org) is NOT timebombed, is completely and fully functional (including HDR, MACH11, ER etc.). Do you know that the only limitations on this versio…
Informix Dynamic Server v 11.50 Developer's Edition
Does everyone know that the Informix Dynamic Server Developer's Edition v11.50 that you can download from the IIUG Web site (www.iiug.org) is NOT timebombed, is completely and fully functional (including HDR, MACH11, ER etc.). Do you know that the only limitations on this versio…
CONFIGURATION ONAUDIT-IBM Informix Dynamic Server
Hello, I need to configure onaudit and onshowaudit able to register for each of the consultations that are made to the database, either through dbaccess, ODBC or another application. I've been reviewing the IBM Informix Trusted Facility Guide, but I was not working. What param…
onstat -g rea almot 100 queue there !!!
You say : ----------------------------------------------------------------------------- the more LRUS the merrier, but if you did not have enough LRU queues your BR would be sky high. I wouldn't worry until you have many more users running. --------------------------------------…
How to use Informix Dynamic Server
I have installed trial version of "Informix IDS Dynamic Server Developer Edition 11.5 for Windows 2003, XP, Vista, 32bit Version 1150TC1DE". But i am new to informix. Can anyone explain how to use IDS in detail.…
The max size of BUFFERS in IDS9.40FC7 at Solaris?
BUFFERS 3600000 (pagesize is 2KB,SO is 7.2GB), but user command 'onstat -g seg' ,then class 'R' is only 4GB..Is it system limited 4GB?? From Administrators Reference V9.40.. BUFFERS limited is 536,870,912(Solaris)....So I don't know why it is.... IBM Informix Dynamic Server Ver…
Create Index Mysteriously Slow at the End - IDS 11.10.UC2W2 - Red Hat EL5
Andrew Ford wrote: > From: <jprenaut@yahoo.com> > >>If you are always catching the flush_sub threads with this stack, then >>they have submitted an I/O request to the KAIO threads > > > I thought it would be interesting if I disabled KAIO and went with AIOVPs. > > Totally differe…
Full Proof way to determine if ontape is restoring
Hey sorry for this basic question. IDS 9.4 databases. When I run ontape -r I tend to execute onstat -D to monitor it's execution in that you can see the "page Wr" (number of paqes written) increase as a way to determine that the ontape is actually really doing anything. Does anyo…
understanding oncheck -pp
Thanks Mike, Here is the excerpts from the af.xxxxxxx file - ***** 11:08:29 Assert Failed: Page Check Error in btcurrent:bad current page 11:08:29 Who: Session(16, informix@DV11, 3743, 10b013e98) Thread(45, sqlexec, 10afd38f0, 1) File: rsdebug.c Line: 1057 11:08:29 Results: Po…
What is IPA abbreviation ?
Hi all IBM INFORMIX DYNAMIC SERVER 10.00 PRODUCT RELEASE bug_number 168928 description WITH NON-DEFAULT PAGE SIZE AND ACTIVE IPA'S, TABLE LEVEL RESTORES FAIL product_code ONUTILS component_code ARCHECKR What is IPA ? Thanks…
Buffer waits
HI, Folks, Just curious, we have a quite number of buffer waits(onstat -p) and we know they were caused primarily by a sequential scan of a large table. As I observed, the percentage (onstat -R) of the free buffers was still high (> 90%) when the session claimed a buffer wait(o…
Re: 9.40FC9 BUFFERS limit
On Jul 25, 4:41 pm, <eshkambx-i...@yahoo.com> wrote: > Hi > > Does anyone know what is real maximum number (not from release notes) of BUFFERS parameter for IDS > 9.40FC9 for Solaris 10? Exact Solaris version is: Solaris 10 11/06 s10s_u3wos_10 SPARC. > > Situation: > > We have ne…
description of onstat -g ntt
Hi Karl, From IBM Performance Guide v9.4, we can find this explanation on the q-exceed field: << output output field Description -------------------------------------------------------------------------------- -------------- onstat -g ntm q-exceeds Number of times the free buff…
Re: Strange behaviour of the buffer pool
On Jul 17, 8:57 am, RoB <pluma...@gmail.com> wrote: > >My post to the news group is taking forever. In any case, I looked > >around a bit and it seems like the easiest way to get your resident > >section to become larger, other then BUFFERS in the $ONCONFIG, is the > >LOCKS para…
Re: Strange behaviour of the buffer pool
On 17 Jul, 12:10, RoB <pluma...@gmail.com> wrote: > Hi all, > > IDS: 9.40.FC3W2 > OS: HP-UX 11.11 > > What am I missing here? An instance is unexplainably allocating 224 MB > of buffer pool in addition to the amount configured. > > The BUFFERS onconfig parameter is set to 6250 (=…
Re: Strange behaviour of the buffer pool
Looking at a larger instance on the same versions I can see the "resident" pool being 354MB while the "res-buff" being the same the BUFFERS setting: onstat -g mem|grep " R " res-buff R c00000001669d040 1280004096 2848 2 2 resident R c000000000491040 …
Strange behaviour of the buffer pool
Hi all, IDS: 9.40.FC3W2 OS: HP-UX 11.11 What am I missing here? An instance is unexplainably allocating 224 MB of buffer pool in addition to the amount configured. The BUFFERS onconfig parameter is set to 6250 (= 12.2MB): onstat -c|egrep "BUFF|SHM" BUFFERS …
IIUG TV
Great job on the video work!! I look forward to seeing more! -t- -- -- Informix Dynamic Server Database Engine -- http://www.informix.com --…
Re: Slow database creation and loading
On Jun 18, 10:50 pm, "Jack Parker" <jack.park...@verizon.net> wrote: > If you are using HPL, that grabs it's own memory. Data does not go through > the normal buffer pool (unless you are using deluxe mode). You might not > want to increase buffers. I need to double check but I…
Using onstat -m -r Issue
I'd like to inquire whether anyone has experienced memory issues when using the repeat option of the onstat -m command (onstat -m -r) ? We are running IDS 10.0 on Solaris 10 and there have been several occasions where one of our instances would not come up when being restarted d…
Re: admin tools like PC client
Mike, What version of Informix are you using? Informix SE? Informix OnLine? Informix Dynamic Server? Most Informix versions these days come with a product call I-Connect that needs to be installed on the PC and rovides the Informix ODBC drivers.…
Error when initializing
06:36:20 IBM Informix Dynamic Server Version [b]10.00.UC6TL[\\b] I believe this is likelt ot be a new ish instance to a newish user of the software…
onstat -p
Dear forumers, Attached is the "onstat -p" command : Do you think my bufwaits is high ?? Or is there anything significant from this information that need attention for performance reasons ? -------------------------------------------------------------------------------- ------…
onstat -p
The following is the output of onstat -p, I am curious why numckpts: 2325 < ckpwaits : 2683 ? How is that possible? Thanks, Frank informix@erika $ onstat -p IBM Informix Dynamic Server Version 10.00.UC5 -- On-Line -- Up 36 days 02:20:10 -- 1976640 Kbytes Profile dskreads pagr…
problems with Informix dynamic server 9.4 @ WIndows 2003
I have problems with connecting the server. I use correct user/password to connect to the server, but the server do not known the server. I'm sure the user exist and is one of the user in Informix_Admin group. I have installed Informix dynamic server 9.4 in a windows xp system in…
help with tuning issue
How does lrumax and mindirty look like???? if at time1 all is ok and at time b all is bad, may be the # of dirty pages is simply too big??? wild guess..... explain would help so does a onstat -R when all is ok and all is bad... Superboer.…
RE: 10.0 xC6
David, 'onstat -g afr' should be used with a specific memory pool from 'onstat -g mem' that has a big memory allocation. As I mentioned, 'onstat -g mem' doesn't show anything at all for this case: memory is leaking to nowhere. ------------------------------------------ Alexey…
error initializing
Hi: when initializing my INFORMIX leaves the following message to me error: $ oninit -v Checking group membership to determine server run mode...succeeded Reading configuration file '/usr/informix/etc/onconfig.nazca'...succeeded Creating /INFORMIXTMP/.infxdirs...succeeded Creat…
Total length of columns in constraint is too long
Hi, We recently migrated our application from MySQL to IDS. While the migration (post DDL and few other code changes) worked just fine in a dev. environment on windows, while executing DDL scripts on Linux, IDS throws this error. Basically I have a unique constraint on 3 columns…
Onstat Reference
It's taken a while but I've finally got our onstat reference pages (www.oninit.com/onstat) up to data with all the recent (ish) stuff. The V11 changes will be in place when the V11 Beta goes public. I'm happy to be told where they are wrong. If you like it then use it, if you …
License Extension
Help.. I need a license extension for the IBM Informix Dynamic Server Version 10.00.FC3R1TL which I downloaded to do a evaluation. How can I get the license extened..my project is in the final stages .. Dhaya Commercial bank…
Sporadic performance issue
"TBP" <TheBigPotato@NotHere.Co.Uk> wrote in message news:scwRg.32880$Mh2.490@newsfe6-win.ntli.net... >> What is SHMBASE set to? [root~] onstat -c | grep SHMBASE SHMBASE 0x44000000L # Shared memory base address >> What does onstat -g seg report when you hit the "lim…
RE: onstat -R / LRUAGE -- Priority downgrades
-----Original Message----- From: informix-list-bounces@iiug.org [mailto:informix-list-bounces@iiug.org] On Behalf Of Danny Sent: Tuesday, September 19, 2006 9:31 AM To: informix-list@iiug.org Subject: onstat -R / LRUAGE -- Priority downgrades Folks-- Not sure what/why exactly I…
onstat -R / LRUAGE -- Priority downgrades
Folks-- Not sure what/why exactly I am seeing a very high value under 'prioriy downgrades".. Anybody has seen this or facing this one. Any help is appreciated. I've turned on LRUAGE=1 onstat -R|tail -3 64 dirty, 174969 queued, 175000 total, 262144 hash buckets, 2048 buffer siz…
record locked
a combination of onstat -k and onstat -u…
Re: Security Vulnerabilities Addressed in Informix Dynamic Server
Clive Eisen wrote: > Ian Michael Gumby wrote: > > Yes the buffer overflow issues are a pain and frankly they shouldn't occur > > if IBM did formal code reviews. Or rather they should be caught and > > corrected prior to release. > > > > "Paul Watson" <paul@oninit.com> wrote in m…
Security Vulnerabilities Addressed in Informix Dynamic Server
Not sure if this has posted here or not but .... http://www-1.ibm.com/support/docview.wss?rs=630&context=SSGU8G&dc=D600&u id=swg21242921&loc=en_US&cs=UTF-8&lang=en Cheers Paul Paul Watson Tel: +44 1414161772 Mob: +44 7818003457 Web: www.oninit.com GO FURTHER with DB2 GET THER…
Checking indexes after large deletes
"Doug McAllister@Fidelity Investments" <dougmc001@gmail.com> wrote in message news:1149703655.779384.151690@u72g2000cwu.googlegroups.com... > hmmm, btc is not a valid option in my 10.00.FC4 instance and when I try > it onstat gives me the help listing. When I try it on my 9.40 > …
help on onstat
hi, please help me how to leave onstat -i mode? thanks…
Initialising Informix
I am trying to initialize informix on a new server and I am getting this error. The server is HP UX 11.11 and Informix IDS 7.31 What could be the problem / This action will initialize Informix Dynamic Server; any existing Informix Dynamic Server databases will NOT be accessible …
Informix Connection From WIN CE.NET Emulator?
How do I connect to informix dynamic server from WIN CE.NET Emulator? Is there a WIN CE informix driver?…
who locks a record?
onstat -k followed by an onstat -u…
How do it get writes form the lrus in V10
> -----Original Message----- > From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of Bill > Marshall > Sent: Wednesday, May 03, 2006 7:21 AM > To: ids@iiug.org > Subject: How do it get writes form the lrus in V10 [6648] > > > I have a new HP Intel 32 bit chip mach…
Re: Informix session VS 'oninit' CPU usage
(Sorry - I am reposting this as it is supposed to the reply for the currently last entry of the thread /R.) Thanx everybody for the feedback. Unfortunately I cannot use the SET EXPLAIN as Ben suggested since the executed statements are encapsulated inside an application that is …
Re: Informix session VS 'oninit' CPU usage
Thanx everybody for the feedback. Unfortunately I cannot use the SET EXPLAIN as Ben suggested since the executed statements are encapsulated inside an application that is executed by the users. However, I will try to mix what you suggested with other suggestions for the same kin…
Re: Table Editor for Multiplatforms
Enhancements in Version 4.3 ..... also supports the Informix Dynamic Server 9.x. http://www.ibm.com/software/data/db2imstools/db2tools/db2te/…
Fragmentation Elimination Problem
I am on version IBM Informix Dynamic Server Version 10.00.FC4.…
Re: Informix Dynamic Server 9.30 - Shared Memory
Ronald Schwingel wrote: > Can someone please tell me how much Shared Memory (gigabytes?) > Informix Dynamic Server 9.30 (32-bit version) for AIX 5L can use > before asserting with a Shared Memory access error? Can you provide > documentation that I can pass on also? It looked to…
RE: Informix Dynamic Server 9.30 - Shared Memory
First off you shouldn't be getting shared memory access errors. That sounds more like a bug that technical support should address. I wouldn't be surprised if your getting can't allocate additional shared memory segment messages. Informix 32-bit on AIX is a bitch. The problem …
Informix Dynamic Server 9.30 - Shared Memory
Can someone please tell me how much Shared Memory (gigabytes?) Informix Dynamic Server 9.30 (32-bit version) for AIX 5L can use before asserting with a Shared Memory access error? Can you provide documentation that I can pass on also? We are looking at providing one of cust…
create a DB on Linux
Hi! I have installed Informix dynamic server on Linux. Now I want to create a data base. What should I do? Thanks…
Dbload Question
Yes, dbload takes an exclusive lock on the table by defailt. Add the -r flag to prevent the lock. Art S. Kagel ----- Original Message ----- From: Tony Demeis <ids@iiug.org> At: 1/30 13:04 Hi, I am trying to use dbload to load two files into a database simultaneously in two sepa…
Re: flagship sunk
Funny I have been able to download IDS 10 for Solaris, Windows and Linux am I just smarter than everyone else? www.informix.com Support and downloads In the middle trials and betas Oh look Informix Dynamic Server (IDS) V10.0 easy!…
Check INFORMIXDIR and DBLANG.FAILED
Hill, what could have caused it ? angel:/opt/informixids/msg/en_us/0333}oninit -v Checking group membership to determine server run modesucceeded Reading configuration file '/opt/informixids/etc/onconfig.angel'...succeeded Creating /INFORMIXTMP/.infxdirs ... succeeded Creating …
Re: IDS 10 - documentation questions
Oops! I mean IBM Informix Dynamic Server Version 10.00.TC3ET Althought the release notes (idse_win_release_notes_10.0.html) start with:- "Release Notes for IBM Informix Dynamic Server Express Edition for Windows Platforms 10.00.TC3E, 1 July 2005 " so it is TC3E or TCE3T? and …
Re: Sql to concatenate multiple rows to a single row / column
Thank you SaltTan - it works beautifully. BTW, we have IBM Informix Dynamic Server Version 9.40.FC6.…
oninit: Dictionary Cache and SPL Routine Cache error
I am having some trouble initializing shared memory on Solaris 9 with Informix IDS 9.4. --------------- $ oninit -ivy Checking group membership to determine server run modesucceeded Reading configuration file '/dbms/informix/etc/onconfig.site'...succeeded Creating /INFORMIXTMP/…
Re: informix - tool like SQL server profiler
Mitja wrote: > Art S. Kagel wrote: > >> Mitja wrote: >> >>> Hello! >>> >>> Does anybody know is there any tool for informix like Microsoft SQL >>> profiler? >>> >>> I would like to catch currently running sql statements. >> >> >> >> Version and platform would be nice. IDS 9.40 a…
Re: informix - tool like SQL server profiler
Check the manuals, but basically onstat -- (double minus) will list all possible commands. onstat -r 'n' is repeat command every 'n' seconds so onstat -r 5 -g sql will list the sql for all processes every 5 seconds Regards Colin There are 10 types of people in the world, those…
Max Locks Forever
Well, well I'm getting different results under IDS 10.00.TC3 under windows. with 2000 locks onstat -g seg gives:- Segment Summary: id key addr size ovhd class blkused blkfree 1381386241 1381386241 c000000 5308416 215512 R 1278 18 138138…
New IDS Forum on IBM Developerworks website
This forum provides a place for Informix Dynamic Server developers and users to share their questions, thoughts, and ideas with others. http://www-128.ibm.com/developerworks/forums/dw_forum.jsp?forum=548&cat=19…
Re: Re: oninit error .. [5496]
$ oninit -ivy Checking group membership to determine server run modesucceeded Reading configuration file '/opt/informix/etc/onconfig.padbv2'...succeeded Creating /INFORMIXTMP/.infxdirs ... succeeded Creating infos file "/opt/informix/etc/.infos.padbv2" ... "/opt/informix/etc/.co …
Installation problem
I am attempting to upgrade an Informix installation from 7.3x on Sun 5.7 to 9.4 on Sun 5.9. When I run oninit -ivy I get the following: Creating buffer pool 200002 kbytes...succeeded Initializing rhead structure...succeeded init_alarm failed fyi: I installed a new version of IS…
Re: IDS 10 Express Edition
Note 10.00.xC3 = Enterprise Version 10.00.xC3E = Express Edition http://publib.boulder.ibm.com/infocenter/ids9help/index.jsp?topic=/com.ibm.relnotes.doc/uc3E/idse_win_release_notes_10.0.html Then click on "IBM Informix Dynamic Server Express Edition" in the right pane:…
Re: informix restore
onstat -d shows ) free space On 5/26/05, Gentian Hila <genti.tech@gmail.com> wrote: > I run a backup ontape -s which was saved to a file and then zipped it > through gzip and then unzipped it and restored through: > > ontape -r -D dbsdata > > but I didn't restore any logical log…
setup Informix Dynamic Server Version 9.40.UC1E1 to linux error
I setup Informix Dynamic Server Version 9.40.UC1E1 to linux execcute oninit -ivy is failed the online.log is write /// 16:31:32 Dynamically allocated new virtual shared memory segment (size 8192KB) 16:31:32 Informix Dynamic Server Version 9.40.UC1E1 Software Serial Number AA…
error the running INSTANCIA
Hi: Cuando inicio la instancia me sale el siguiente mensaje de error.... alguna idea, se los agradecere. Me pueden dar una pista ??? saludos ============================================================= Checking group membership to determine server run modesucceeded Reading co…
error the running INSTANCIA
Hi: Cuando inicio la instancia me sale el siguiente mensaje de error.... alguna idea, se los agradecere. Me pueden dar una pista ??? saludos ============================================================= Checking group membership to determine server run modesucceeded Readin…
Transaction Rollback
onstat -x…
How to determine optimum buffer size?
Hello, how do I (or how do you) determine the optimum buffer size (on IDS 9.40, but I think it's a generic question) ? I have a machine with almost 'unlimited' memory (96 GB RAM). Therefore I could define a large number of buffer pages. But I'm not sure if at some point the adm…
What counts sysbufhdr.reusecnt ?
Hi, I found the table sysbufhdr in the sysmaster database apparently containing information about the database buffer pages. One column has the name 'reusecnt' - does anybody know what exactly that column counts? Most entries have reusecnt=0 and I have one system (with a very la…
Re: RESIDENT and BUFFERPOOL
David E. Grove wrote: >>On Solaris the 4MB page size is used for any segment made resident, no >>matter how many there are. > > Since page size is now settable in IDS 10, does the above have any > implication on specifying a BUFFERPOOL page size? I'm no sure whether you understa…
Re: RESIDENT and BUFFERPOOL
David E. Grove wrote: >>On Solaris the 4MB page size is used for any segment made resident, no >>matter how many there are. > > Since page size is now settable in IDS 10, does the above have any > implication on specifying a BUFFERPOOL page size? I'm no sure whether you understa…
Re: Expert advice needed on Buffer management
jpierrot@chubb.com wrote: > Hi gang, His per-session buffer pool requirement calculation is completely bogus since most sessions will be sharing the use of the same pages of data and which pages are shared and which are uniquely used by a single session will differ from server t…
Expert advice needed on Buffer management
Hi gang, I received this below from the architecture Dept. trying to simulate Production like performance in QC and development envs. Assuming performance testing would be equal in all those environments if buffers are adjusted to a certain value. Please advise! My question to yo…
Expert advice needed on Buffer management
Hi gang, I received this below from the architecture Dept. trying to simulate Production like performance in QC and development envs. Assuming performance testing would be equal in all those environments if buffers are adjusted to a certain value. Please advise! My question to yo…
Informix Dynamic Server information Centre
Great new utility just posted under IDS 10 on the docs site has uses for other products and versions than just IDS 10 so take a look even if you are not using 10 yet!! http://publib.boulder.ibm.com/infocenter/ids9help/index.jsp…
IDS 10 Download?
So many questions... I have played with multiple buffer pools and different page sizes... creating a dbspace with an 8k page size..oh wow! Make size is only 16K though...oracle (where I guess this idea came from) allows 64K! onstat -h (buffer hash chain info) gives two outputs …
Cannot find message file. Check INFORMIXDIR and DBLANG.
im trying to run the oninit -i in the command prompt when the message appear... we installed... IBM Informix Dynamic Server 9.40 IBM INFORMIX-4GL Rapid Development System Version 7.32.UC2 IBM INFORMIX-4GL Version 7.32.UC2 set up sqlhosts, services, onconfig, path... but when tr…
onstat -p
We are running IDS 9.3 on Tru64. Most of the onstat -p statistics quit being accumulated 3 days ago and I = have no idea how to restart accumulation without restarting the = instance. What/how causes the stats to not accumulate? How do you begin accumulation again? Copy of onst…
onstat --p
Hi: Considerations can recommend me that parametros and/or deberia to make for being able to improve the performance of my motor, because deacuerdo when coming out of onstat - p Êched=91.21 and to be 98 Thank's ========================================================== Profil…
onstat --p
Hi: Considerations can recommend me that parametros and/or deberia to make for being able to improve the performance of my motor, because deacuerdo when coming out of onstat - p %cached=91.21 and to be 98 Thank's ========================================================== Prof…
ontape restore sleeping
We are running 9.20HC3 on an HP-UX 11.11 box. I am running an ontape -r on 1 dbspace. We have a cooked file system and it has been on the same chunk (out of 16) for 6 1/2 hours now. The onstat -g ses shows the physreco thread sleeping. tid name rstcb flags curstk status 82 ontap…
chunk capacity
we are using BM Informix Dynamic Server Version 9.40.UC2X3 on Linux Kernel 2.4.21 the command 'onstat -d' shows ... Expanded chunk capacity mode: disabled how can I change this mode to 'enabled'?…
IDS V7.30 and Windows 2000
Can Informix Dynamic Server Version 7.30.TC6 be run on a Windows 2000 host system? TIA Erwin…
problems of Inztallation's
Hi: I have problems with thle installation of IDS. Plataform: HP-UX 11.11 IDS: 7.31 FD8 I cannot initialize !!! If I want to iniciarlize via onmonitor .... the error is: shared memory not initialized for INFORMIXSERVER 'crazy_tcp If i want to inicialize vi command ..... the err…
Re: Error Initialize Informix Dynamic Server
Art S. Kagel wrote: > On Wed, 04 Aug 2004 05:05:41 -0400, madiego wrote: >>I install Informix Dynamic Server and when I initialize 'oninit -iv' : >> >>This action will initialize Informix Dynamic Server; any existing Informix >>Dynamic Server databases will NOT be accessible - Do…
Error Initialize Informix Dynamic Server
Hello, I install Informix Dynamic Server and when I initialize 'oninit -iv' : This action will initialize Informix Dynamic Server; any existing Informix Dynamic Server databases will NOT be accessible - Do you wish to continue (y/n)? y Checking group membership to determine ser…
Intitialization problem
Hi, I have a problem with IDS 7.31 on SCO 5.0.5 When trying to initialize IDS and it hangs. Here is the oninit -v command: # oninit -v Checking group membership to determine server run modesucceeded Reading configuration file '/usr/informix/etc/onconfig'...succeeded Creating …
Re: Informix Dynamic Server and DB Tuning
I am experiencing similar problems with users migrating from Standard Engine to IDS 9.30. It appears that some applications are more susceptible than others. What application(s) are you running? We also have experience of adding more BUFFERS, LOCKS, etc and not improving the sit…
RE: Informix Dynamic Server and DB Tuning
Muthana Increase BUFFERS in onconfig file. UPDATE STATISTICS for each table (as a minimum) rerun the query and see what improvements you get. If you still have problems post the results of:- onstat -p onstat -m onstat -R and sqexplain.out of any particularly slow query or updat…
Informix Dynamic Server and DB Tuning
Dear Sir, The question how can make DB Tuning for Informix Dynamic Server version 9:30 to get the query faster. I used IDS 9:30 and it's not quick enough like our old Standard Engine. which Parameter can i change to make that or what shall i do? Regards Muthana AL-Temimi…
Can IDS accessing Informix SE Tables.
Hello, Now we are using Informix SE. We are planning to go Infomix Dynamic Server 9.x. Before migrating our current applications to IDS 9.x., first we have to develop a new application in IDS 9.x, in that we need to use some of the tables from informx SE. Could you please answer…
Informix IDS problem
Hi All, When I try to start the IDS 9.40 on HP PA-RISC machine, I get the following error. If I reinstall the IDS it works properly. If I shut down & restart the database it fails with the below message.. Checking group membership to determine server run modesucceeded Reading …
RE: Clearing Buffer Pool
Informix (unlike MS SQL) keeps all pages in the buffer pool 'forever' - until page becames replaced by another page... ------------------------------------------ Alexey Sonkin > From: Dave Griffen [mailto:dgriffen@nospam.finishline.com] > > I do mean to remove all non essential…
RE: Clearing Buffer Pool
To clear the buffer pool from dirty pages, generate a chackpoint with 'onmode -c' If You mean to remove all pages from it, then it's impossible. ------------------------------------------ Alexey Sonkin > -----Original Message----- > > Does anyone know if there is a way to clea…
Clearing Buffer Pool
Does anyone know if there is a way to clear the buffer pool without bouncing the engine?…
Dose anybody have the dbtop script in the Troubleshooting informix course?
Dears, I study the Troubleshooting ibm informix dynamic server course. At the module 4 exercise need the dbtop script. Dose anybody has this dbtop script and post for me? Thanks. Philip Yeh.…
Timestamp of last archive
"TBP" <TBP@Nospam.Nothere.Co.Uk> wrote in message news:c6nq4r$1bcm$1@sp15en20.hursley.ibm.com... > R�diger M�hl wrote: > > Hi folks, > > > > is there any way to get the timestamp of the last > > archive from any [system] table? > > > > I know about oncheck -pr. > > > > TIA, > > >…
Long checkpoints on AIX/IDS7.31/IBM Shark
List, We have very sporadic, very long checkpoints on our IBM RS/6000 boxes (AIX 4.3.3, IDS 7.31.UD4) connected to an IBM Shark (2105-F20), eg. 66 seconds to write away 2772 KB. Normally checkpoints are 0 - 1 seconds for 10 - 20 MB: $ onstat -c | grep -e BUFFERS -e LRU -e CKPTI…
Work group edition - Unlimited edition??
Taken from IBM web site:- =========================================================================== The following Informix Dynamic Server Workgroup Unlimited editions have been added to the IBM Data Management Gold Transaction Processing Bundle for SMB Unlimited: IBM Informix…
Do I need more KIO's
You've got virutally no buffers, only 6000. Without knowing how much memory you have in the box I look at running this to 50000, or even 100000 and see what happens I'd set the tapeblk to 1024 instead of 16 Do you really want your logs to be thrown way? ltapedev = /dev/null I'd…
Performance is getting worst after turn on the LRUAGE
On Sun, 28 Mar 2004 22:40:01 -0500, miyaki wrote: Other is usually 'unused pages'. Look at the top of the onstat -P report. On the line for address zero (0), is the value under Other very large? Those are unused buffer pages, ie no data pages have been loaded into them. There…
Onstat -D / onstat -u mismatch
IDS 9.21.UC6, Solaris 2.8 building an ETX index, into logged smartdbs, onstat -u shows the nreads column ticking up. The nwrites is remaining at zero. Onstat -D shows heavy reads on one smartdbs where the data is, and heavy writes on smartdbs where the index is heading. onstat…
Re: [Informix Dynamic Server (IDS):] Digest 2671
For a course in the US, check out: http://www-306.ibm.com/services/learning/ites.wss?pageType=course_description&co urseCode=L1760&country=us&language=en (IBM course L1760). There is probably a similar course offered in Europe somewhere. Hope this helps. Kevin Doiron Toronto,…
Re: Buffers and LRU.
Madison, the standard interpretation of LRU is Least Recently Used. The standard usage of such a queue is as follows: Each queue has an MRU (Most Recently Used) end and an LRU end. When a buffer is touched (either read or written) it is moved to the MRU end of the queue. When a…
Re: Transaction support in informix dynamic server(IDS)
chaithra wrote: > i wanted to know, if in IDS we can get to know the status of a > transaction at any given time. or once any transaction commits or > rollsback we should be able to know the status. > is it possible through c++ interface provided by the IDS. I'm not quite s…
Re: Buffers and LRU.
"T.K" <gp@tf.de> wrote in message news:<bvrslu$67h$1@inews.gazeta.pl>... > Hello. > I'm beginner in use Informix. > Where can I find what are the main difference between > buffers and LRU queue. > > Thanks for your help > > T.K Its kind of like asking what is t…
Transaction support in informix dynamic server(IDS)
hi all, i wanted to know, if in IDS we can get to know the status of a transaction at any given time. or once any transaction commits or rollsback we should be able to know the status. is it possible through c++ interface provided by the IDS. thanx in advace chaithra…
Buffers and LRU.
The buffer pool is the page cache of the engine. The LRUs are simply a means of chaining the buffers together. There are two chains per LRU - the free and the dirty. (Actually a free buffer has a page in it, but it is not dirty.) There are multiple LRUs so that if a thread tri…
configure computer for using informix
what shell I do to make my computer work with informix. I have installed winXP on my computer, informix 4 i informix dynamic server? THANKS…
database restore with ontape -r on Informix Online Dynamic Server 7.31 on Linux
"Paul Watson" <paul@oninit.com> wrote in message news:3FFC576E.292EDEB2@oninit.com... > something like > > onstat -r <<EOF > y > n > n > n > EOF > > should work, but I wouldn't use it on a production system onstat -r would be quite safe on a production system. I wouldn't use ont…
Where can I get the client API?
Hi, does anyone knows where to get the client API for Informix Dynamic Server 7.x? Perhaps we want to access the server via api directly. Kind regards, Joachim Engel.…
Informix optimizer
Hi, Does anyone know if the Informix Dynamic Server (7.31 or 9.4) database optimizer uses star schema optimizer techniques? Thank you, Tony…
onstat -F
What does the "data" column in onstat -F output signify? Where is this documented? Thanks Andy…
TRUNCATE TABLE command in 9.3?
I am aware that Informix Dynamic Server previously has not included the TRUNCATE TABLE command. Does anyone know if 9.3 or 9.4 include this command?…
IDS restore stuck in fast recovery during restore
Hi I am busy with a physical restore on all the dbspaces of a SAP system runnug on IDS7.31.FD1 on solaris8 and I am running into a problem where the engine gets stuck for hours waiting for checkpoint while in fast recovery. The output of running the onstat - command is : Inform…
Linux fgl_getenv
Informix Dynamic Server Version 9.30.UC3 on Linux. Do I have to do something before I can use the fgl_getenv call in a stored procedure? When I try I get 674: Routine (fgl_getenv) can not be resolved.…
RE: ontape -r and CKPT REQ
You can't and shouldn't do anything. Just monitor with 'onstat' or 'vmstat' how the restore process is going and wait, until online status changes to 'quiescent' from 'recovery' If 'vmstat' shows some CPU/disk activity during restore, and onstat (-D, -p, etc) shows increments i…
IDS 9.40 Documentation (LRUs).
Hello. I�ve been trying to find some information about changes in the way IDS 9.40 handles LRU Queues. It seems that there is a new algorithm that allows a performance enhancement regarding Low and High Priority Buffers. The 9.40 documentation does not mention anything, but i…
RE: Dynamic Server versus Universal Server ??
Originally, Version 7.x was called 'Informix Dynamic Server', Version 9.0x was called 'Universal server' Starting with 9.1, Universal server became 'Dynamic server with Universal data option'. With 9.2, new names 'Internet Foundation 2000 ' and 'Dynamic server 2000' ware given…
Informix Dynamic Server 2000 startup problem
Hi, While starting up informix in multi user mode , we wait for the database to come up by checking the onstat - o/p . But if the system is loaded, even after onstat shows status as online , the connection is rejected by the database . The wait loop that we do is as follow…
RE: Shared memory: permission denied.
Marino, I think Your IDS was started by 'root'. You shared memory segments are accessible only by 'root' and members of the 'system' group. Please, note, that 'onstat' is owned by 'informix:informix' and doesn't have setuid bit set: informix@db-1:~$ ls -l bin/onstat -rwxr-sr-x…
ONSTAT problmes on IDS 7.31
"R�diger M�hl" <ruediger.maehl@web.de> skrev i en meddelelse news:newscache$lqe0ih$xud$1@www-neu.dzsh.de... > Morten L. wrote: > > I am trying to move a 7.31 TC4 from NT4 to W2K > > *** WARNING: Informix Dynamic Server is no longer running. *** > > Hi Morten, > > you should upgra…
why I can't see the output of "onstat -g wts"
test:/informix>onstat -g wst Informix Dynamic Server 2000 Version 9.21.FC7 -- On-Line -- Up 5 days 13:23:03 -- 11132960 Kbytes Wait statistics not enabled How to enable the wait statistics???…
informix SDK 2.81 ifxoledbc OLEDB and ADO
When Updating or deleting a non existing row in a table, the informix oledb provider produces an "UnSpecified error". Environment: Informix Dynamic Server 7.31 Informix SDK 2.81 ADO 2.6 Any help will be appreciated. Thanks in advance…
RE: LRU writes
> -----Original Message----- > From: Stefan Weideneder [SMTP:stefan@weideneder.de] > Sent: Monday, May 05, 2003 1:16 PM > To: informix-list@iiug.org > Subject: RE: LRU writes > > > > Assuming you really do want to cause more LRU writes because of > > excessive checkpoint duration…
RE: LRU writes
> -----Original Message----- > From: Stefan Weideneder [SMTP:stefan@weideneder.de] > Sent: Monday, May 05, 2003 1:16 PM > To: informix-list@iiug.org > Subject: RE: LRU writes > > > > Assuming you really do want to cause more LRU writes because of > > excessive checkpoint duration…
RE: LRU writes
> Assuming you really do want to cause more LRU writes because of > excessive checkpoint duration, simply reducing the number of LRUs won't > work. That would increase the number of buffers per LRU. It will then > take > longer to reach the value for LRU_MAX_DIRTY. You would g…
onstat flags
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SMI-Tables: Performance messaurements - l2datetime convert the Informix internal time to datetime
On Wed, 14 Feb 2001, Jonathan Leffler wrote: >Frank Pientka wrote: >> I've 2 questions for useing the SMI/onstat for performance messaurements. >> 1.) Whar is the unit of the memory usage in onstat -g ses (bytes ??) >> 2.) How can I convert the Informix internal time in long in …
regarding concept of physical logging??
hello, i have a serious confusion regarding tha concept of physical logging, this might sound silly for an expert kindly bear with me and explain.. according to what the book says.. physical logbuffer contains the before images of the data that taken from disk for modification..…
onstat -b
Hello all, Below is the output of onstat -b : informix@test:/usr/informix> onstat -b Informix Dynamic Server Version 7.30.UC8 -- On-Line -- Up 6 days 21:06:56 -- 506592 Kbytes Buffers address userthread flgs pagenum memaddr nslots pgflgs xflgs owner waitlist 31427e88 0 …
RE: what is light scan and look aside??
All of these 'advanced' questions. Are you retreading from some other vendor? You should consider a course. Light Scan: Normally when you read a table, you go through the buffer pool. That is your row is retrieved from disk, stuck into a buffer, an LRU entry is made to track…
FW: FW: LRU's and CLEANERS (IDS 9.21FC1)
-----Original Message----- From: owner-informix-list@iiug.iiug.org [mailto:owner-informix-list@iiug.iiug.org]On Behalf Of David Williams Sent: Saturday, February 03, 2001 4:39 PM To: informix-list@iiug.org Subject: Re: FW: LRU's and CLEANERS (IDS 9.21FC1) In article <95efd3$2ha$…
FW: LRU's and CLEANERS (IDS 9.21FC1)
Thanks for the input Christian. I just still have to be convinced about this one. I think your suggestion is also in line with what the manual says, however I've heard of a lot of people having 128 LRUS on only a couple of cpus. In a previous post by Art Kagel (Wed 11/29/2…
LRU's and CLEANERS (IDS 9.21FC1)
The manual says the following about LRU's and CLEANERS To monitor the percentage of dirty pages in LRU queues, use the onstat -R command. When the number of dirty pages consistently exceeds the LRU_MAX_DIRTY limit, you have too few LRU queues or too few page cleaners. First, use…
onstat -b
Hello all, Below is the output of onstat -b : informix@test:/usr/informix> onstat -b Informix Dynamic Server Version 7.30.UC8 -- On-Line -- Up 6 days 21:06:56 -- 506592 Kbytes Buffers address userthread flgs pagenum memaddr nslots pgflgs xflgs owner waitlist 31427e88 0 …
RE: onstat
On Tue, 30 Jan 2001 dr_pablo@my-deja.com wrote: >> I have seen vendor-supplied scripts, which use the following >> exit codes from "onstat". I do not know where they are documented. > >Here's the URL to the FAQ page containing the info: > >http://www.iiug.org/resources/faq/ifaq0…
RE: onstat
I got this email awhile back: >PEOple, > >For those of you who do not know, it is very tough to determine the *real* >status of IDS. "onstat -" will return, stating that the server is "online" >but many times it is in the process of a "fast recovery", etc. In >addition, "onsta…
RE: onstat
The exit codes were posted into a FAQ at the IIUG web site at one time. Wayne E Martin Informix Database Administrator Kmart Corporation -----Original Message----- From: Bogdan Neagu [mailto:bogdan.neagu@alcatel.com] Sent: Monday, January 29, 2001 11:17 AM To: informix-list@iiu…
RE: onstat
Hi Bernstein. Please visit following site. >exit codes from "onstat". I do not know where they are documented. http://www.informix.com/informix/iuc/ppt/ts_ids.ppt And search "onstat". Regards. -- Tsutomu Ogiwara Technical Group & Red Brick Group, Informix Sales Promotion …
Re: onstat
At 11:17 01/01/29 -0500, Bogdan Neagu wrote: Hi Bogdan. When the meaning of the question is different, I'm sorry. onstat returns the following. The server status is expressed as a number 0 Initialisation 1 Quiescent 2 Recovery 3 Backup 4 Shutdown 5 Online 6 Abort Regards. >…
RE: onstat
I have seen vendor-supplied scripts, which use the following exit codes from "onstat". I do not know where they are documented. integer inf_dwn1=255 # Informix mode is down integer inf_dwn2=-1 # Informix mode is down (60_USAP2) integer inf_init=0 # Informix mode is Initia…
onstat
Hi all. I was told by our DBA that onstat has different exit codes depending on the engine's mode (or mood). So, if I test $result (in C shell) or $? (Bourne / Korn shell), I should get a numeric value. My tests show 1=Quiescent, 5=On-Line. Does anyone know what these values …
onstat -b
Hello all, Below is the output of onstat -b : informix@test:/usr/informix> onstat -b Informix Dynamic Server Version 7.30.UC8 -- On-Line -- Up 6 days 21:06:56 -- 506592 Kbytes Buffers address userthread flgs pagenum memaddr nslots pgflgs xflgs owner waitlist 31427e88 0 …
Re: CLEANERS
"William Rice" <ricew@operamail.com> wrote in message news:90isbi$1j4$1@nnrp1.deja.com... > In article <3a2c1dd0@news.iprimus.com.au>, > "Andrew Hamm" <ahamm@sanderson.net.au> wrote: > > hanna_shaw@my-deja.com wrote in message > <90gti5$gso$1@nnrp1.deja.com>... > > >Hi, > > > >…
What requires an IDS Linux?
Hello What requires an Informix Dynamic Server Linux a desktop and/or a network version of Linux? Thanks in advance Jacqueline Romero Miranda…
Informix v Oracle
Hi Is there a function in Informix Dynamic Server 2000 that is like Oracles CREATE SEQUENCE that uses NEXTVAL/CURVAL and %ROWCOUNT, ect? Thanks for all contributions Jordan jbruce@asaglobalserv.com…
onstat -R question ?
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bug in onstat -t ?
onstat -t gives following output (look at column npages): Tblspaces n address flgs ucnt tblnum physaddr npages nused npdata nrows nextns resident 17 c0000000995f8908 0 1 100001 10000e -9223372036854775558 250 0 0 5 0 120 c0000000995f8d78 …
real-time monitoring of SQL commands?
Try onstat -g sql {session id} -r 1 That actually lists the SQL statement itself. To get better than 1 second granularity, you need to run set explain on from within your program or a stored procedure. This puts every SQl command out to a sqexplain.out file. Regards, Ray "M…
Onstat -P
Hello all, I am hoping you can clear up something for me. I am curious about the onstat -P command. The Admin Guide/Manual for 7.3x has one pithy statement about "display for all partitions the partition number and break up of pages in the buffer pool belonging to the partitio…
Retrieving product name
Hi all, Is their a system table somewhere on an informix server that stores the product name. For example 'Select owner from systables where tabname = � VERSION� will return the version of the server. I would like to be able to tell if a server is a Universal server or a Dynamic …
onstat on IDS2000
Hello all IHAC with IDS2000 ans the output of onstat -d is the following : Informix Dynamic Server 2000 Version 9.20.UC3X4 -- On-Line -- Up 6 days 16:59:45 -- 459440 Kbytes Dbspaces 500d1d08 6 8001 6 1 N S informix usersbs0101 Chunks address chk…
IDS 7.3x on Win2000?
Does Informix Online Dynamic Server 7.3x runs on Windows 2000 (Professional)? Thanks for your help. Guy Dillen…
Re: onconfig advise please
> By looking at ovbuff and the BTR (Buffer Turnover Rate) or BTF (Buffer > Turnover Frequency) you can determine whether the problem is not enough > buffers or LRU contention. If LRU contention increase LRUS and CLEANERS if > possible, if they are already maxed out (128 on 7.x/9…
Hanging in a "fast recovery"
Thanks Art, 'Onstat -p' showed me "fast recovery" wasn't hanging. The firts time we restored with 'ontape -r' we killed the recovery to quick, with 'onmode -ky'! The second and third restories failed because of our first failed restore. After the fourth restore we reinitialis…
Re: How to search for a string in a TEXT field
Hi, :-( SELECT name, REPLACE(text,"ZNOTREADY","found") AS your_output FROM tablewithtextfield; Blobs are not allowed in this expression. I use Informix Dynamic Server Version 7.31.UC2A…
Re: Regarding LRU,
From: Aboobacker V V <aboo@syd-co.au.dhl.com> > >May be a stupid question !!!, Pass. >Why there is a requirement for more than one LRU queue in Informix >Online. >With one LRU queue pair itself, cann't the buffer be managed?? It can, but the issue is do you want your hundreds…
Regarding LRU,
Hi All, May be a stupid question !!!, Why there is a requirement for more than one LRU queue in Informix Online. With one LRU queue pair itself, cann't the buffer be managed?? Regards Aboo…
Re: Performance problems with large SELECTS in 7.3x ?
Stefan Weideneder wrote: > > Hi, > > I tried to select some pages of a table that was a bit larger > than my buffer pool. I estimated that my statement will take > about 5 seconds but it took 12 seconds. > I found out, that the server spent approx. 7 seconds for > "buffer waits".…
Create user in Informix Dynamic Server
Hello all I`m new in INS. Could you help me? I have Database server with one user Informix. How to create another user to Database?…
Informix ODS on Win 2000?
Does Informix Dynamic Server V7.31.TC5 for Intel Pentium Windows NT 4 also run on Windows 2000? Thanks for any help. Guy Dillen ITP…
Number of LRUs, Cleaners & Buffers
In article <394A3B61.B8818F70@styria.com>, Thomas Stainer <tstainer@styria.com> writes >I'm running informix 7.30 UC6 on a 4cpu Server (the engine is db- and Which platform, sun, HP, AIX, NCR?? >app-server, 3 cpus are affinated, AFF_NPROCS=3), acutally I have 8 >LRU-Queues an…
Re: Slowness
Leonids.Voroncovs@dati.lv wrote: > > "Art S. Kagel" wrote: > > > If you still have BR problems you can try increasing BUFFERS also > > and then you have to use the undocumented ONCONFIG parameter LRUPRIORITY > > to alter how clients select LRU queues to reduce contention. > > Oop…
onstat -u
I have a telnet user who consistently is walking out the door without logging off. Here's how I assume I should go about killing the user, with the problem listed below. 1. Do a who -u | grep username (identify tty port) 2. Do a onstat -u | grep username (to identify session i…
Informix cost???
Someone can said how much does Informix cost? I need to know: -Informix costs -cost for client Thanks very much. I need the last version of dynamic server for Unix. Ciao, Berna…
RE: What is bufwaits (onstat -p)
>===== Original Message From "Mark D. Stock" <mdstock@mydas.freeserve.co.uk> ===== >"Art S. Kagel" wrote: >> >> The bufwaits indicates when a thread has to wait to read a page into a >> buffer from disk usually this is caused by the LRU Queue to which the thread >> has hashed to …
Re: What is bufwaits (onstat -p)
"Art S. Kagel" wrote: > > The bufwaits indicates when a thread has to wait to read a page into a > buffer from disk usually this is caused by the LRU Queue to which the thread > has hashed to acquire a buffer being locked by another thread trying to do > the same thing or needing…
RE: What is bufwaits (onstat -p)
I have one question. From your message: -- Pages that get both update and read activity or pages that get updated by multiple users are the source of bufwaits. The odds of two users with incompatible access modes hitting the same page at the same time is little affected by the …
Re: What is bufwaits (onstat -p)
Bufwaits have little or nothing to do with LRU contention nor with reading in a page from disk. As Vinod said it does occur when one has to wait on a buffer because another is accessing it. The counter is not incremented because one waits to get access to an LRU. It is increme…
What is bufwaits (onstat -p)
The bufwaits indicates when a thread has to wait to read a page into a buffer from disk usually this is caused by the LRU Queue to which the thread has hashed to acquire a buffer being locked by another thread trying to do the same thing or needing to move a buffer from the 'clea…
LRU queues
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Re: Onstat
Are you executing onstat with -r 1 option? It happens sometimes. Try with -r 5 option. Vinod Bhansali --- Srinivas Sreekumar <SRINIVAS_SK@inf.com> wrote: > Hi all, > > I recently installed Informix dynamic server > 7.31.UC6 on HP UX 11.0 > > I am getting an error while running …
RE: Onstat
I had a low value for the shared memory kernal parameter for my unix server. When I increased it it started working.. Thansk, Srini -----Original Message----- From: Marat [mailto:maratkotik@mail.ru] Sent: Monday, May 15, 2000 7:41 PM To: informix-list@iiug.org Subject: Re: Onst…
Onstat
Hi all, I recently installed Informix dynamic server 7.31.UC6 on HP UX 11.0 I am getting an error while running onstat. "Changing data structure forced command termination. " can someone interpret this message for me and tell me the action to be taken. Thanks, Srini…
Query tracer
Hi, I am looking for a way to trace realy each SQL statement an application sends to the database server. Because the source code of the application cannot be changed I have to use means of the DBMS or a tracing tool. I tried: onstat -g sql sid -r seconds > file. The minimum i…
Replication
Hello everybody. I would like to know if it is possible to replicate an Informix database between a UNIX-based 7.32UC2 Informix Dynamic Server and an linux-based IDS2000 without problems. Thanks in advance. jhernandez@geuropa.com…
onstat -p
_______________________________________________________________ This message and any attachments are intended for the individual or entity named above. If you are not the intended recipient, please do not read, copy, use or disclose this communication to others; also please not…
ontape -l with 2 different Tape-Types ?
I did a DB-Restore via ontape -r. This was OK. But now have several LOG-Tapes (ontape -a) with different Sizes (DLT, DDS). I restored the first LOG-Tape via ontape -l (DDS 4mm). Then i switched the TAPE-Device in the Onconfig-File. Now i want to restore the next LOG-Tape (diffe…
Re: How do I check LRU contention - onstat -g spi ????
On Tue, 11 Apr 2000 13:30:59 -0400, "Art S. Kagel" <kagel@bloomberg.net> wrote: >bothwellno@spam.duke.edu wrote: > >> Art S. Kagel & Family <kagel@erols.com> wrote: >> : InfoJones wrote: >> : [output SNIPPED] >> >> : To determine whether buffer contention or LRU contention is in…
Re: How do I check LRU contention - onstat -g spi ????
bothwellno@spam.duke.edu wrote: > Art S. Kagel & Family <kagel@erols.com> wrote: > : InfoJones wrote: > : [output SNIPPED] > > : To determine whether buffer contention or LRU contention is involved > : try to calculate your buffer turnover rate: > > : Buffer Turnovers = (dskread…
dynamic server with Informix distant database
We have this problem : - write of a html page (this pages will contain many many fields). - Receiving of the page data on a http server based on a M1 machine. - Using of 4gl/informix programs based on the M2 machine with the pages data - 4GL programs will set up a � result � tabl…
HELP! Informix Dynamic Server 7.3
I'm trying to install a new IDS on Linux (RedHat 6.1) on a cooked file. Everything looks right, but upon oninit, I receive the following: oninit: Cannot open chunk '/u1/naf_chunk'. errno = 2 oninit: Fatal error in shared memory initialization Log reflects: 09:11:07 Informi…
Re: How do I check LRU contention - onstat -g spi ????
Art S. Kagel & Family <kagel@erols.com> wrote: : InfoJones wrote: : [output SNIPPED] : To determine whether buffer contention or LRU contention is involved : try to calculate your buffer turnover rate: : Buffer Turnovers = (dskreads + bufwrits) / BUFFERS : BTR = (Buffer Turnove…
UDR Support in Informix Dynamic Server.
Can someone tell me what exact version of Informix Dynamic Server that first supported C User Defined Routines. I've tried searching for this on their website with no joy. (their advanced search doesnt work at all !) Rgds, Peter. Sent via Deja.com http://www.deja.com/ Before y…
onstat -g Question
Jochen Platzer <jps@magnet.at> wrote in message news:38D9C964.5ABA5C16@magnet.at... > Hi, > > Informix 7.31 UC4 an Sinix Y 5.43 C3004 > I'm looking for a flag on the onstat -g command , that displays the > archive > status of the dbspaces, in can find it in the onstat -g all but…
KAIO in AIX
> I have a question though, I looked into the onconfig file, and saw that > the NUMCPUVPS is set to 1, and I have around three KAIO running. > Is this a bug or something? Here's a dump of onstat -g iov Addition to the Art's answer : If you will also look into the 'onstat -g ath…
OFFICE Connect V.1
Informix Office Connect, Version 1.0, is compatible with the following Informix servers: Informix Dynamic Server, Version 7.3 or later Informix Dynamic Server with Universal Data Option, Version 9.14 Informix Dynamic Server 2000, Version 9.2 or later e Informix-SE 7.23 n�o func…
Informix 7.24UC8 performance
Check your onstat -R, sometimes BUFFERS will get loaded with index pages such that users then compete for placing data pages. There is an environment variable that can be set to prevent index pages from having a higher priority over data pages - call tech support for the name of…
Posting from the Informix-list
onstat -g ntd Nona…
Re: Long Checkpoints
Ulrich Eckhardt wrote: > > "Mark D. Stock" wrote: > > I don't subscribe to the idea of matching your physical log size to your > > average work load. What happens when your work load is a bit high? You > > have performance problems. > > > > I always create my physical log too big…
Re: Long Checkpoints
In article <38BE266E.C164B425@transcom.de>, Ulrich Eckhardt <Ulrich.Eckhardt@transcom.de> wrote: > Hi, > > i have a problem with long checkpoint runs on an informix 7.30 UC 10 > running on linux. (Machine is a PIII 500 with 512 MB Memory). > > Sometimes checkpoints takes 15 to …
Long Checkpoints
Hi, i have a problem with long checkpoint runs on an informix 7.30 UC 10 running on linux. (Machine is a PIII 500 with 512 MB Memory). Sometimes checkpoints takes 15 to 25 seconds. During this times i have approximately 2000 to 2300 dirty LRU queues. an onstat -FR (with only 2…
Re: Informix-NT performance
From: ivon4388@my-deja.com > >I have big problem with HP LXr 8000 with >4xprocessors Xeon 400, 1Mb, 2048 RAM, NT 4 Server >Enterprise Edition, SP4 and Informix Database. >After rising user sessions over 1000 the average >CPU time on all processors(all thy are allowed >for Informi…
Re: MEMORY problem after Informix upgrade
Run onstat -g seg and look at the total of the RVM segments. It is in bytes. Does that equal your total of your physical memory on the system. If so then you might have a problem. the R segment should be about 20% of your physical memory. M and V are dependent on what you are run…
System catalogue
Hello! Can anybody explain me how I can create trigger on "informix".systables? (The server I deal with is Informix Online Dynamic Server 7.3.) Max…
onstat -u
I am running Informix 8.2 on HP-UX 11.0. When I issue onstat -u command it shows the following: address flags sessid user tty wait tout locks nreads nwrites Under flags option: There are seven flags, the Seventh place flag is I know B,C,D,F; but it also shows M sometime. …
Re: Onbar
> > The problem with using onstat is that it will always return all logs as > full. No. It returns only the full logs if you grep them out. The flags on the output of 'onstat -l' mark the full logs, in our version (7.2 & 7.3) they look 'U--'. It is a very simple solution. It can…
Compatability between Informix products
Hi, I need some version compatability information for the following products. Hardware Platform: Hewlett Packard OS Platform: HP-UX version 10.20 Informix s/w: Informix Universal Server 9.20 Informix Dynamic Server 7.31 Informix Gateway to DRDA vers…
RE: checkpoints taking as much as 25 secs
Scott Huppert wrote: > > It's logical that turning the entire buffer pool every 10 minutes is > probably bad, but what is a reasonable time frame? Is there any rule of > thumb? On a busy server that is NOT primarily a DSS/DW server I'd like to see the buffer pool turnover rate …
tuning question
In looking at some performance tuning notes I noticed something that said "Increment the onconfig variable LRUS by 2 until the onstat -R percentage is below 60%." After examining the output and documentation for onstat -R I can't figure out what they were talking about and why y…
Re: The stats of "aio" VP on SingleProc machine in KAIO mode
>My statistics for G50 says, that millions of disk writes go through 'aio', but >when we compare 'onstat -g iov' with 'onstat -g iof', the sum of disk writes >(-g iof) is nearly equal the count of 'kio' disk writes (-g iov), >and similarly for disk reads. There is bug in Informi…
Re: Dirty LRU exceeding the LRU_MAX of 2%
Andrew Lawrenson wrote : >>Here is what I am seeing. In onstat -R the dirty q's are over 2% dirty. >>onstat -F shows all the flushers as Idle. >> >>I know I have seen this in the post but cannot find it in search. >> >>Attached. >>onstat -R output >>onstat -F output >>onconf…
informix dynamic server on linux help
Hi all, I am an informix newbie, and i have problems running it on redhat linux 6.0. The installation went just fine, but now when i start dbaccess and try to create a new database i get this error message: 25584: Network driver can not access server program /opt/informix/lib/sq…
Informix Dynamic Server on IBM SSA
Can any one share their experiences, recommendations, pit-falls, comments about creating an IDS db engineOLTP environment on an IBM SSA Raid system? We have 2 SSA adapters and have 4 loops with 4 drives each. The IBM techs for the Smoothstart services will be coming next Tuesday…
ovbuff vs. fgwrites question
Bobby Medus <jeepin@eatmydirt.com> wrote in message news:382C304D.90240C61@texas.net... > This may be a stupid question but you know the old saying..... > > I noticed an increase in 'ovbuff' on the onstat -p. This is a very > small database running on NT and so I increased my b…
Re: Dirty LRU exceeding the LRU_MAX of 2%
Hi >Andrew Lawrenson wrote: >Kernoal.Stephens@AUTOZONE.COM wrote in message ><80csie$ad9$1@news.xmission.com>... >> >> >> >> >>Here is what I am seeing. In onstat -R the dirty q's are over 2% dirty. >>onstat -F shows all the flushers as Idle. >> >>I know I have seen this in the …
Dirty LRU exceeding the LRU_MAX of 2%
Kernoal.Stephens@AUTOZONE.COM wrote in message <80csie$ad9$1@news.xmission.com>... > > > > >Here is what I am seeing. In onstat -R the dirty q's are over 2% dirty. >onstat -F shows all the flushers as Idle. > >I know I have seen this in the post but cannot find it in search. > >…
Please help me!
Hello! 1, Can somebody give me information, what is the new features for Version 7.24 of Informix Dynamic Server according to Version 7.20 of Informix Dynamic Server? 2, Are Version 7.20 of Informix Dynamic Server and 7.20 INFORMIX-ESQL/C 2000 Year Compatible? 3, W…
onstat & SMI
Hi, does anybody knows what query (queries) I must run to produce same output as onstat -u command? I'm not sure for flags, which fields in SMI represents those flags. Thnx in advance.…
Re: installing Informix dynamic server
From: "Joerg_Mauz@abs.org" <Joerg_Mauz@abs.org> > Is there something wrong the the gateway, Hotmail or are there just loads of idiots posting today. (Apart from me, that is! :-) ______________________________________________________ Get Your Private, Free Email at http://www.hot…
installing Informix dynamic server
hi all, can anybody give me an URL where to find a good description of how to setup and install an Informix Dynamic Server with using RedHat Linux ??? I've searched a whole day but founf nothing useful.. :( thx ind advance joerg…
Help! Cant start database service
Hello All I had my informix dynamic server (7.3) running fine till a few days back. Now the dynamic server service and the informix messenger service won't start automatically and if I try to start the server, it does start but I'm unable to connect to it. If I try to start the…
Re: informix parameters in onconfig file
In article <37E9B92D.8F1A8F74@wsisiz.edu.pl>, edem <sztuka@wsisiz.edu.pl> writes >Thanks all for answers ! > >$ onstat -g seg > >Informix Dynamic Server Version 7.30.FC7 -- On-Line (Prim) -- Up 05:31:56 -- >6551032 Kbytes > >Segment Summary: >id key addr …
Fg Writes
lower LRU_MAX_DIRTY, LRU_MIN_DIRTY. Make checkpoints more frequent either through CKPTINTVL or resizing the physical log. Increase BUFFERS, CLEANERS, LRUS. Those are the general answers (I can think of right away). LRU_M[IA][NX]_DIRTY - Control when your buffers are cleaned o…
Informix Online Dynamic Server DBA Book
Hello Could anyone recommend a good Informix Online Dynamic Server book. I did a search in Amazon.com but I could not decide on which one to choose. Thanks in advance. Ajay…
pricing for informix info?
Hello, Was wondering what other people out there paid for informix dynamic server 7.3... Basically, i wanted to know if they had a web server licensing schem like microsoft. or ibm's db2 (per cpu license). and would the licenses be transferable if I decided to move from le…
Onstat command
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Page cleaner configuration
Top Cat wrote: > > I have heard that you should set the CLEANERS configuration variable equal > to the LRUS variable. I have also heard that you should set CLEANERS equal > to the number of chunks in the instance. Which is it? WELLLLLL..... There are several reasons for the d…
Re: Determining version dynamically
Hi, If you have Informix Dynamic Server then use the following sql-statement ' select DBINFO('version', 'full') from systables where tabid = 1' result from the sql is : Informix Dynamic Server Version 7.30.UC5 Take a look in Informix Guide to SQL: Syntax for more about DBINFO…
KAIO: out of OS resources error
Hi~ My informix dynamic server write "KAIO: out of OS resources error .." in online.log. This error log is written during ontape task. How can I solve this problem? platfom : SunOs 5.5.1 Informix Dynamic Server 7.24 uc6 Thanks.…
buffwaits & lockwaits
Dhanesh, Please post onstat -p output showing the problem. In general one can control the number of lockwaits by changing table lock modes from page to row and by reducing the duration of locks in applications programs. To reduce bufwaits one can increase the number of buffers…
onstat -z
Is there any way to tell the last time someone ran "onstat -z"? This seems like it should actually be logged in the online.log file rather than having to rely upon my fellow DBA's to communicate the fact that they reset things. Especially when I have to monitor hundreds of syste…
64bit IDS for Solaris 7/SPARC ?
Is there a 64bit Informix Dynamic Server 7.3x for Solaris 7/SPARC available? tia, joerg…
Posting from the Informix-list
what is the last version of Informix Dynamic Server for HP-UX 10.20, where can i find more Information about this.…
Latest versions for various Informix products ???
Which are the latest versions for Informix Dynamic Server Informix Dynamic Server, Workgroup Edition Informix 4GL Informix SQL on Solaris 7/SPARC ? Where can I find such informations on Informix's website ? tia, joerg…
cdr command line utility in informix 7.24
Hi, Is there a cdr command line utility in informix dynamic server 7.24? I tried to locate it, but the executable is nowhere to find. Thanks, Lu…
read and write cache percentages
Post your ONCONFIG file, onstat -R, onstat -p, onstat -F, onstat -m, onstat -l outputs and we'll look it over. Art S. Kagel Vic Newman wrote: > > In article <7muke7$lt8$1@nnrp1.deja.com>, > Yuri Dovgart <y_dovgart@tci.ukrtel.net> wrote: > > In article <7mrhba$pd7$1@nnrp1.deja…
onstat
Hello after executing an onstat following message appears in the first lines: "Changing data structure forced command termination" What does this mean? Why does the Profile (as in a normal onstat) not appear and the onstat view only shows me the sessid? Regards André…
7.31 upgrade problems
> Here is a snippet from onstat -p: > Profile > dskreads pagreads bufreads %cached dskwrits pagwrits bufwrits %cached > 7489 8743 1267093 99.41 1519 2421 3016 49.64 > > On 7.24, the write was hovering around 98%. Now it sucks. The disk > where the table c…
Problem Installing Informix Dynamic Server
I downloaded a Try&Buy version of Informix Dynamic Server V7.30 for NT. I installed it on an NT Server. The install seemed to go ok, but after a short time of investigating IECC, I got a blue screen. After this when I started the Command Center, a task seemed to start, but it w…
Performance Problem
In article <7ju9ts$7uo$1@news6.svr.pol.co.uk>, Callum <callum@online- home.freeserve.co.uk> writes >I am running IDS version 7.24 UC6-1 on a dual processor RS/6000 (AIX 4.2) >with 512M of memory, the only thing running on the system is Informix. The >problem I have is that the p…
Problems starting IDS 7.30.TC7 on Windows NT SP4.
When i try to start informix dynamic Server, the following message appears "Only informix user can start informix dynamic server" this message appears when i logged on with the informix's user. When i try to start the service on the control panel , error 2140 appears.…
onstat options....
Hi Users, Which is the best site(s) / Book(s) to explain in detail all the columns of different options in onstat. There are a few changes in onstat results from 7.2x to 7.3.... so need something which explains all these. Thanks in advance, Pramod ___________________________…
Re: Out of buffer?
On Wed, 26 May 1999, Mark D. Stock wrote: > Xavier wrote: > > > > Hi, > > > > I got the following error message from an Informix IDS 7.30: > > > > <<Informix Dynamic Server>>> WARNING! Buffer pool size may cause > > Dynamic Server to get into > > a locked state…
Re: Out of buffer?
Xavier wrote: > > Hi, > > I got the following error message from an Informix IDS 7.30: > > <<Informix Dynamic Server>>> WARNING! Buffer pool size may cause > Dynamic Server to get into > a locked state. Recommended minimum buffer pool size is > 4 time…
Out of buffer?
Hi, I got the following error message from an Informix IDS 7.30: <<Informix Dynamic Server>>> WARNING! Buffer pool size may cause Dynamic Server to get into a locked state. Recommended minimum buffer pool size is 4 times maximum concurrent user thre…
Re: onstat
In article <7hpivn$l4u$1@news.gte.com>, michael.talbot@telops.gte.com says... > Hello, > > Question from a unix/informix neophyte: > > > > When I issue the onstat command I get the following reply. Does anyone know how to resolve this? > > /tmp-> onstat > shared memory not initi…
Re: onstat
Either the environment variable INFORMIXSERVER is not set (or isn't set to the correct value) or the Informix database engine is down. What is the value of DBSERVERNAME in the ONCONFIG file? John Carlson Informix DBA WHSmith USA Hello, > > Question from a unix/informix neophyt…
Re: Capturing SQL
Javier Puente wrote: > > You can access this information by making : > 1.- onstat -u To get the session conection id > 2.- With the sessionid you can trace SQL tasks by doing > onstat -g sql sessioid > EX: > onstat -u |grep myuser > > ---Supposing that sessionid is…
Monitoring documentation
Hello all, I am trying to document things that need to be monitored on our database (7.30.UC3 on HP-UX 10.20) and I am wondering if anyone has any more suggestions for things to look at. Here is what I have so far. Locking number of currently held locks - (onstat -u) …
Linux VS NT4.0
Hi, Is it true that Informix Dynamic Server workgroup edition 7.30 is ported for Linux, and if it is so does anyone can tell me what to chose between Linux and NT4.0 for running Informix Dynamic Server workgroup edition 7.30. Also I'd like to know for which version of Linux, Inf…
Re: Foreground writes
Hi Mark Hows it going? You probably need to supply more information. Can you post your ONCONFIG file and an output of onstat -F and onstat -R? Thanks Sujit > > Mark Zanders <mzanders@adcc.com> on 04/22/99 07:30:28 AM > > To: Informix List <informix-list@iiug.org> > cc: (b…
ONSTAT
HI folks, looking for help using onstat -g que I would like to know if Enterprise Replication is working I don't know the meaning of this output.. Any help will be really appreciated. Thanks Javier Puente…
New fields on the onstat -R
I am in the process of installing IDS 7.30.UC7-1 on AIX 4.2.1. While running the onstat -R, I noticed the four new priority levels (LOW,MED_LOW,MED_HIGH,HIGH). All references in Administrators Guide only show the old format. Are these configurable? TIA Chris…
onstat columns
Does anyone have a listing, even partial, of on onstat command column meanings? Informix's references are completely unhelpful, or nearly so, in describing, for example, what the "q-limits" column of "onstat -g ntd" means or how it's calculated, except for saying that the comman…
Re: onstat -u / onstat -g ses Problem
Informix Netherlands advised to start the database with the environment variable SINGLESEG_OFF=1. Try it! Regards Hans Bosma Database Administrator NCCW(Netherlands Ing Thoralf Bihlo wrote: > > I´ve got an HPUX 10.20 / Serie 800 Server with Informix Dynamic Server > 7.30 UC6. >…
REQ: Problem with onstat -u / onstat -g ses
I´ve got an HPUX 10.20 / Serie 800 Server with Informix Dynamic Server 7.30 UC6. My SHMVIRTSIZE is 32k and onstat -g seg shows that I have just one Segment. When I try an onstat -u or onstat -g ses I get the Error: >Changing data structure forced program termination< during the …
onstat -l
When my machine is blocked in a CKPT, onstat -l shows ... Buffer Waiting Buffer ioproc flags L-1 57c6ab54 0x1 0 L-3 57c69884 0x1 0 ... which is not documented anywhere. I can guess what it means, but does anyone know what exactly it means (and what flags ar…
Re: RESIDENT and PDQ
Chuck Renaud wrote in message <7ddp91$hpf$1@news.xmission.com>... > >As for light scans--those only happen if the table being read is >larger than the buffer pool. So if you max out your buffers, you >won't get light scans unless they're huge tables... So, would this mean that …
Starting Informix Dynamic Server !
Hi Gurus, Just wondering is there any difference in starting the informix engine as root user versus as Informix user. ? The reason why I ask this question is , the IDS 7.23 UC6 on HP-UX 10.2 crashes due to a bug (declared as bug by Informix Technical support)when we start in…
Informix Dynamic Server Archive/Restore
Hello All: We have a large scale Informix DB resident on an HP 9000, K460, with AutoRaid Disk Subsystem (218gb). And we are running IDS 7.30. Currently, we are using the Informix ontape archive/restore utility to archive the DB and to perform continuous logical logging. We u…
Any one know this?
Hi folks: Is there a script that can check informix on-line dynamic server is up and running or not? If not it will e-mail a note to D.B.A. groups Thanks in advance Garry…
Re: onstat -F output
This reinforces the idea from yesterday, that you do not have enough pages updated between checkpoints to force LRU writes, given your current settings. Note that during the measured period, you have only 66,897 page writes. Owing to the imprecise amount of time ('almost an hou…
Delete
Hi. I've a question. When execute a delete by where on field not indexes, it sequential scan table' s page. Before to delete records, it casche pages in buffer pool ? Tank you.…
Re: onstat -F output
> Hi all, > I have Informix 7.30.UC2 running on SCO 5.04 and have noticed this on > my onstat -F output > > Fg Writes LRU Writes Chunk Writes > 0 0 18463 > > address flusher state data > 874484c4 0 I 0 = 0X0 > 87448974 1 …
Re: Buffer Waits
> hmm, could you go into a bit detail on the light-scan? I have a DSS system > but I am not sure how to make it use light scan. I read something on the > book about it, but it wasn't very clear on exactly how to utilize it or > how to check it. thanks yan Here's some more inform…
Re: Buffer Waits
> hmm, could you go into a bit detail on the light-scan? I have a DSS system > but I am not sure how to make it use light scan. I read something on the > book about it, but it wasn't very clear on exactly how to utilize it or > how to check it. thanks yan There's a blurb about i…
converting Informix Online 5.1 esql/c to Dynamic Server esql/c?
Hi converting Informix Online 5.1 esql/c to Dynamic Server esql/c? What is the easiest way to do this? Is there a parser that could do this? edward…
Re: Performance on HP unix
Ahmad Ramzi Salleh <ramzi@telekom.com.my> wrote: > > Hi, > I'm running New Era 2.20 for end-user and using Informix 7.13 on HP-UX > 10.01. > Can anyone tell me how to identify which session take up CPU resources > because > sometimes when ever I issue top command on unix, %CPU g…
RAID Technolgy
We are using Informix Online Dynamic Server 7.2. We are going in for a new DEC UNIX Server with RAID Technolgy. It incorporates mirroring at the hardware level. So is it not necessary to do mirroring using Informix?. Can anybody give suggestions regarding mirroring and other feat…
RE: onstat -t
onstat -t shows tblnum in hex. So you can link it with hex(partnum) of systabnames to get your tablename. HTH Sathish -----Original Message----- From: David Tamburin [mailto:david.tamburin@protegrity.com] Sent: Wednesday, January 27, 1999 4:16 PM To: informix-list@iiug.org Subje…
onstat -t
Hello, Is there anyway to tell what the actual tablenames are when you execute a onstat -t ? I know that tblnum is the tablespace number, but what can this be related too to tell me something useful? Thank you david.tamburin@protegrity.com david Tamburin…
Informix on Linux
Does anybody know how much a copy of Informix Dynamic Server would run me for use on Linux?? Thanks in advance -steve…
Upgrade Dynamic Server 7.13 - 7.24
I need to upgrade Informix Dynamic Server version 7.13 to version 7.24. Can anyone advise of any problems they may have had whilst doing this?…
checkpoint time > 15 sec.
michael wallace wrote: > > I am currently running informix 7.3 on an IBM S70 with 2GB men and 4 > CPU's, and 10 mirrored ssa 4.5 GB disks. > CHKPTINVL 300 > LRU 8 > LRU_MIN_DIRTY 2 > LRU_MAX_DIRTY 3 > PAGE_CLEANERS 4 Recommendatations are hard without more info li…
Informix Dynamic Server 7.31?
Is any information available regarding the release of IDS 7.31 for Unix? We have Sun E3000 and E4000 machines and are experiencing problems with both 7.30.UC3 and 7.30.UC5 and are curious about 7.31. Thanks. Carleen Avant Naval Safety Center Internet < cavant@safecen.navy.mil …
STRING FUNCTIONS
Are there functions for manipulating varchar type, like upper() or lower() in Informix Online Dynamic Server 7.2? Thanks in advance.…
Netscape Enterprise Connection for Informix Dynamic Server
Hi: Does anyone know the procedure for setting up a Netscape Enterprise Server to connect to an Informix Dynamic server on a remote machine? Michael…
oninit: shared library problem
I'm having problems when initialising the DB using oninit. Config: INFORMIX Dynamic Server Ver 7.23, on a UNISYS-UNIX SVR4. When Initializing, I get the error ...dynamic linker: oninit: symbol not found: gettimeofday The LD_LIBRARY_PATH is set to $INFORMIXDIR/bin and �INFORMIXDIR…
Initi DB
I'm having problems when initialising the DB. Config: INFORMIX Dynamic Server Ver 7.23, on a UNISYS-UNIX SVR4. When Initializing, I get the error ...dynamic linker: oninit: symbol not found: gettimeofday The LD_LIBRARY_PATH is set to $INFORMIXDIR/bin and �INFORMIXDIR/esql help wo…
Index on Informix Online 7.22 ?
I have installed a new Informix Online Dynamic Server 7.22UC3 on our server (HP-UX 10.20). I find it is much much slower than the Informix 7.12 Online DS server if I do not create index for a same program. Why and what is the difference between the two version of Dynamic serv…
Re: esqlvers statement.....results are different on 2 DB servers ???
Tim Jones wrote: > > I've installed Informix 7.30UC3 with the ClientSDK 2.01 software on 2 > servers. Let's call them Server A and B. > > Both A and B had a prior ESQL/C versions. > > After the install, logged in as informix userid on A and ran "esqlvers" > and got this : > I…
esqlvers statement.....results are different on 2 DB servers ???
I've installed Informix 7.30UC3 with the ClientSDK 2.01 software on 2 servers. Let's call them Server A and B. Both A and B had a prior ESQL/C versions. After the install, logged in as informix userid on A and ran "esqlvers" and got this : INFORMIX-ESQL Version 7.22.UC1 …
Informix Dynamic Server Personal Edition
What development apps are known to work with IDS-PE for 95? Infrmx wants to sell me licenses for Dynamic 4gl, esql-c, ddvb for 150usd. Do these work and are there others? 150 sounds ok but the catch is is that the Open-Line Support is outrageous for this (3K usd for unlim. suppor…
Re: Informix equivalent to the Unix 'top' command?
I have onstat -u -r 5 filtered through a sed command that only lets those lines through that are showing activity based on the status flags and the initial status line. It's not as nice as a top like command, but it is a simple solution. I don't have it handy at the moment, but I…
Will informix 7.24.uc5 compatiable with solaris 7?
Hi there, I was wondering if Informix Dynamic Server 7.24.uc.5 will be compatiable with solaris 7 when it comes out? Thanks advance, Pat Militzer pmilitzer@ultracom.com…
Informix equivalent to the Unix 'top' command?
Does anyone know of a database equivalent to the unix 'top' command (public domain) which would list the most resource hungry instance. I realise ontat -u might go someway to achieving this (assuming performance problems are user related) but is not ideal on a multi-instance mach…
Informix Online Dynamic Server 7.2.2
When I try to iniailize the shared memory I get an error "oninit: Critical error initializing shared memory" I checked the log and it says the base memory address is 0x80080000 and should be 0x80400000 when I change it it reverses. this is on a SCO open server 5. nay ideas.…
Informix Dynamic Server on Linux NOW!
Check out the Informix WEB Site. There is an announcement that IDS 7.3 is shipping on Linux TODAY! http://www.informix.com/ Art S. Kagel…
Page cleaners & LRU contention...
Hi guys and gals, ( On HP-UX 10.20 K-Series 6 CPU ODS 7.24UD6) I recently upped the number of page cleaners on a real time system with 16 chunks from 8 to 16. ( it seemed like a good idea ) It had 8 LRU queues LRUMAX/MIN at 8 and 4 and 30,000 BUFERS . i.e a ma…
Problem installing to NT4.0 server
I'm trying to install Informix dynamic server workgroup edition to Primary domain Nt 4.0 Server. I have created Informix-Admin group and Informix account and grant it all Administrators rights and also Domain administrator rights. The server setup runs ok, but when setup is tryi…
Re: Best database for web backend on Linux?
On Wed, 21 Oct 1998 13:03:49 +0000, Evan Carew <ecarew@yahoo.com> wrote: >Simply put, The main reason I have selected Sybase over Oracle in the >recent past has to do with cache management. In every case, if >you try to use Oracle stored procedures in the same environment with >…
Re: Ontape Recovery -- Help!!!
The status is quite normal. An onstat -D should help - basically each used page (determined by onstat -d) will be written to once, so you can estimate how far your restore has got. 6 hours seems a long time for a restore though. Also 750MBytes of memory for your Informix instan…
Ontape Recovery -- Help!!!
Here is my situation. I am currently in the process of performing a full cold restore from an Otape level-0 backup. My database is only 10GB in size. I ran the ontape -r command, and it has been running for 5 hours!. When I do an onstat -, I get the following message: INFORM…
Reducing Checkpoints duration
Hello all! I'm using INFORMIX Dyamic Server Workgroup Edition 7.20.UC2 on SCO OpenServer and I'm getting checkpoints that lasts until 20 seconds . I reduced LRU_MAX_DIRTY and LRU_MIN_DIRTY to 10 and 5 respectively and the CHKPTINTVL to 60. I'm still getting checkpoints around 1…
Deployment Licenses of Informix Dynamic Server
I need a free Deployment Licenses of Informix Dynamic Server!…
onstat -u
I was running an 'onstat -u' command and have been receiving the following message: "changing data structures forced command termination" I was wondering if any of you have seen this message and might know what it means and how to correct it? David Meyer Guerilla Software…
Re: Informix Dynamic Server blocks
In article <3609EB18.2AB1B1CD@bull.net>, Helmut Leininger <Helmut.Leininger@bull.net> writes >Hi, > >Sporadically, the Informix server seems to block (every try to connect >or onstat times out and no reaction on onmode -ky). In the MSGPATH I >find the following message: > >09:03:…
Informix Dynamic Server blocks
Hi, Sporadically, the Informix server seems to block (every try to connect or onstat times out and no reaction on onmode -ky). In the MSGPATH I find the following message: 09:03:42 mt.c, line 8362, thread 2139, proc id 17096, mt_notifyvp timed out. Informix server is 7.22.UC2…
Informix Dynamic Server blocks
Hi, Sporadically, the Informix server seems to block (every try to connect or onstat times out and no reaction on onmode -ky). In the MSGPATH I find the following message: 09:03:42 mt.c, line 8362, thread 2139, proc id 17096, mt_notifyvp timed out. Informix server is 7.22.UC2…
Re: Page cleaners
jasonharris@my-dejanews.com wrote: > > All, > > I have one question about page cleaners. As they run on CPU VP threads what is > the value in having more page cleaners that CPU VP threads? You need to look at a number of concepts to answer that. None of which I'm going to detail…
Re: Reducing checkpoint intervals...
Hi, in my opinion you must reduce LRU_MAX_DIRTY and LRU_MIN_DIRTY. It's not a good idea to reduce the time interval between the checkpoints because each checkpoint costs a lot of overhead ( thread-synchronisation and checkpoint-waits ). How about: http://www.weideneder.de/info…
onstat -h
Does anyone have any info about the meanings of the output of the onstat -h (hash chain info) in IDS 7.3? It's not in the hardcopy or in the 7.3 Admin manual, and I'm trying to document it. Thanks, joe -- -------------------------------------------------------------------------…
Re: Reducing checkpoint intervals...
Hi all, If I'm wrong please correct me. Informix docs say that, i) Page cleaning (by CLEANERS) begins when LRU_MAX_DIRTY percent of the buffers managed by a queue are modified. ii) Page claning is no longer required when LRU_MIN_DIRTY percent of the buffers in an LRU queue are …
Re: Monitoring lock tables
Leonid Vorontsov wrote: > June Tong wrote: > ... > > select username, sid, dbsname, tabname, l.lk_type lock_type, l.lk_kvobj > > rowid, lk_keynum key_num > > from sysrstcb r, syslocktab l, systabnames t > > where r.txp = l.lk_owner > > and t.partnum = l.lk_partnum > ... > The 'o…
Re: Monitoring lock tables
June Tong wrote: ... > select username, sid, dbsname, tabname, l.lk_type lock_type, l.lk_kvobj > rowid, lk_keynum key_num > from sysrstcb r, syslocktab l, systabnames t > where r.txp = l.lk_owner > and t.partnum = l.lk_partnum ... The 'onstat -k' command shows 2 locks more than Y…
Re: Performance problems with large SELECTS in 7.3x ?
Stefan Weideneder wrote: > > Hi, > > I tried to select some pages of a table that was a bit larger > than my buffer pool. I estimated that my statement will take > about 5 seconds but it took 12 seconds. > I found out, that the server spent approx. 7 seconds for > "buffer waits".…
Performance problems with large SELECTS in 7.3x ?
Hi, I tried to select some pages of a table that was a bit larger than my buffer pool. I estimated that my statement will take about 5 seconds but it took 12 seconds. I found out, that the server spent approx. 7 seconds for "buffer waits". Now I added a few buffers to the buffer…
onstat -D vs onstat -g iof
Informx gurus: --------------------------- This is a copy of a post that I previously send, however seems that because of the problems with the informix-list not many people had the opportunity to read it. I am sorry if you already read this message. ----------------------------…
onstat -D vs. onstat -g iof
Informx gurus: Could some one explain the output of onstat -D and compare it with the output of onstat -g iof? On my online 7.23 running on AIX 4.2 I get the following for onstat -D: address chk/dbs offset page Rd page Wr pathname .... 400382c8 2 2 1 40261 303…
onstat commands
Does anyone know of a source that describes all of the onstat commands? The 7.x manuals are pretty good, but some of the explanations are a bit brief. ==================================================================== Harold Luse Phone: (970) 491-4120…
Re: OnLine Dynamic Server 7.2 Vs INFORMIX Dynamic Server 7.3
On Tue, 28 Jul 1998 14:40:44 -0500, Ben Jazi <bjazi@fallschurch.esys.com> wrote: >What are the major differences between INFORMIX-OnLine Dynamic Server >7.2 and INFORMIX Dynamic Server 7.3? Is it ORDBMS vs RDMBS? No, IDS 9.x is the ORDBMS. This autumn the 7.3 and 9.x code lin…
Re: OnLine Dynamic Server 7.2 Vs INFORMIX Dynamic Server 7.3
Ben Jazi wrote: > > What are the major differences between INFORMIX-OnLine Dynamic Server > 7.2 and INFORMIX Dynamic Server 7.3? Is it ORDBMS vs RDMBS? > > Thanks, > Ben I don't know the differences in detail but you could check the following pages, where IDS 7.3 is described …
OnLine Dynamic Server 7.2 Vs INFORMIX Dynamic Server 7.3
What are the major differences between INFORMIX-OnLine Dynamic Server 7.2 and INFORMIX Dynamic Server 7.3? Is it ORDBMS vs RDMBS? Thanks, Ben…
Informix computer Base classes
Has any body used the Informix computer base training classes. I am wondering if any of the computer based training classes: "Informix Dynamic Server System Administration" or the "Managing and Optimizing Informix Dynamic Server Databases" is good. Thank You…
Re: Informix Online Dynamic Server 7 on Linux
Piet le Roux wrote: > > If anyone has succeeded to run Informix ODS 7 (SCO) on Linux help would > be appreciated. > I have installed iBCS and the shared libraries and the binaries work, > except that the engine cannot initialize shared memory: Error message > semctl: errno 22…
Informix Online Dynamic Server 7 on Linux
If anyone has succeeded to run Informix ODS 7 (SCO) on Linux help would be appreciated. I have installed iBCS and the shared libraries and the binaries work, except that the engine cannot initialize shared memory: Error message semctl: errno 22 create_vp: cannot allocat m…
Re: latch/lock , buffer - questions.
Sadagopan, Sathish wrote: > > Hi All, > 1) When a thread needs a buffer to read in data , does it acquire any > latches/locks.How is the allocation done ? This is all explained in the Administrator's Guide. Basically the thread hashes into the LRU queues selecting a queue at …
Problems with Informix Dynamic Server for NT
Hi Has anyone tried downloading and running the dynamic server product for NT? I have it installed, but get the following error when I boot the system: AdmAgent.exe - Applicatioin error The instruction at "0x10087c69 referenced memory at "0x00000000". The memory could not be r…
Re: onstat -g ses
>Hi, >In the onstat -g ses output , what is the basis for allocation of 'total >memory' ? >There is also the figure 'used memory' , why not just allocate required >memory ? Well, we could do that but then that would 1) fragment memory and 2) create bottlenecks. Memory in shared…
onstat
I tried to run onstat not as user informix and i got onstat:Share memory:permission denied. The env. looks fine , the informix server is up. I am running 7.23. You have to have Informix priv. to run onstat ? Thanks Gabriel Weisz…
Re: onstat
Gabriel Weisz wrote: > > I tried to run onstat not as user informix and i got > onstat:Share memory:permission denied. > The env. looks fine , the informix server is up. > I am running 7.23. You have to have Informix priv. to run onstat ? No. Check the permis…
RE: What are the differences between Informix Dynamic Server
It is confusing! =20 Here's what I know: Prior to renaming: 7.2x =3D ODS 8.0 =3D XPS 9.1 =3D IUS After renaming: 7.2x =3D IDS 8.0 =3D IDS/AD/XP 9.1 =3D IDS/UDO=20 After the 7.3 release: 7.3 =3D IDS 9.1 =3D IDS/UDO After the 8.2 release: 8.0 =3D…
RE: What are the differences between Informix Dynamic Server and
This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------ =_NextPart_001_01BDA3AF.9242A58C Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Good quest…
onstat -t output
Hi, The output of onstat -t shows zero in the column 'nrows' , whereas ' nused ' and 'npdata' have non-zero values . Why is this so ? TIA Sathish…
Re: Index for Informix Dynamic Server
William Lai wrote: > > Hello, > > We alreay upgrade our database server from SE5.X to IDS 7.3. After we > convert all the old data to the new server, we have some problems on the > index search. For example, a table: > > table : ith ( ithitno, ithname ), total 1,500,000 records…
Re: Index for Informix Dynamic Server
William Lai <rwie@netvigator.com> offerred: +We alreay upgrade our database server from SE5.X to IDS 7.3. After we +convert all the old data to the new server, we have some problems on the +index search. For example, a table: + +table : ith ( ithitno, ithname ), total 1,500,000…
Index for Informix Dynamic Server
Hello, We alreay upgrade our database server from SE5.X to IDS 7.3. After we convert all the old data to the new server, we have some problems on the index search. For example, a table: table : ith ( ithitno, ithname ), total 1,500,000 records index : ith_1 on ithitno, ithn…
Re: Onstat -R
Hi Roger, The onstat -R commadn give you the listing of the LRU queue's and there status. Eachr LRU queue consists out of two parts. A free and a modified list. The letters f and m indicate wheter it is a f(ree) or m(odified) queue. The LRU length is the numer of pages that are …
Re: Onstat -R
rbruenin wrote: > > Can someone explain the onstat -R headings.. Is the percentage free or > used. Been digging thru the texts.. examples but little explanation? Sure. > INFORMIX-OnLine Version 7.24.FC4 -- On-Line -- Up 4 days 17:40:47 -- > 36320 Kbytes > > 8 buffer LRU queu…
Re: Onstat -R
rbruenin <rbruenin@concentric.net> offerred: +Can someone explain the onstat -R headings.. Is the percentage free or +used. Been digging thru the texts.. examples but little explanation? + +INFORMIX-OnLine Version 7.24.FC4 -- On-Line -- Up 4 days 17:40:47 -- +36320 Kbytes + +8…
Onstat -R
Can someone explain the onstat -R headings.. Is the percentage free or used. Been digging thru the texts.. examples but little explanation? INFORMIX-OnLine Version 7.24.FC4 -- On-Line -- Up 4 days 17:40:47 -- 36320 Kbytes 8 buffer LRU queue pairs # f/m length % of pair…
Informix Dynamic Server 7.3
Hello, Since I'm planning a Data Warehouse, I would to do it with the new version of Dynamic Server. Impressions, stability and on which platform? Regards. Fernando _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ Fernando Collalti Phone: +…
onstat -g ...
Hi guys, Where I can find explainations about the output format (headers and key words) reported after executing onstat -g ... In the Informix Administrator's Guide there is an explaination of all other options of "onstat", but for "-g" option I did not find detailed informati…
onstat -k
Thanks to everyone who answered the onstat -k tblsnum question. I appreciate it. ==================================================================== Harold Luse Phone: (970) 491-4120 Veterinary Teaching Hospital Fax: (970) 491-1275 Colorado S…
onstat -k
How would one link the tblsnum field of an onstat -k with a table name? Locks address wtlist owner lklist type tblsnum rowid key#/bsiz 3008c64c 0 4004a354 0 HDR+S 100002 230 0 3008c680 0 40042814 0 S 100002 22f …
Informix Dynamic Server & Text columns
Hi everybody, Can you help me ? I've created a table with the following structure : column type -------- ---- code smallint obs text How can I insert into this table with Java program ? I'm using Informix Java AP…
Re: LRU Parameters
Also sprach "Art S. Kagel" <kagel@bloomberg.com> : :By the way: Joao's CLEANERS value is much too low. With 32 LRUs one :should have 32 CLEANERS unless one has > 32 chunks then add more than :32 cleaners. You should have: #Chunks <= #CLEANERS >= #LRUs to :minimize checkpoint …
onstat -u
Here's a good question. Sample: 4004d214 Y--P--- 4999 dbolte 91 40c936d8 4004d654 Y--P--- 4965 tgreenwa 56 40129f98 0 1 2071 4004ded4 Y--P--- 4484 bhitchen 32 40b4c5c0 0 1 136 4004e314 Y--P--- 5023 hwhite 77 40006f8c 0 …
Intermittent Problem - error 529 Cannot attach to transaction
We have a HP-UX box (Ver 10.20) running Informix Online Dynamic Server Ver 7.13 and a NT Server (NT4.0) running Informix Online Dynamic Server Ver 7.23. We are trying to access some of the database tables resided in the HP-UX box from the NT Server via synonyms. But we faced inte…
onstat and tbstat
Hi, We have just upgraded from 5.x to 7.x. Those tbxxxx files are now onxxxx files, but they still exist lots of tbxxxx like tbstat, tbmonitor, and so on, are these files different from the new version onstat and onmonitor or they are the just the same but with different names??…
How can I read the header tape of the archive created by ontape?
I have Informix Dynamic Server 7.23.UC1. I would like know the tape header structure created by ontape.…
Re: KAIO vps, and bufwaits
David Williams wrote: > In article <6bq06q$8tp$1@news.xmission.com>, Art S. Kagel > <kagel@ns1.bloomberg.com> writes > >On Mon, 9 Feb 1998, Tony Tyrwhitt-Drake wrote: > >When a thread needs a buffer to update and the page is not already in > >the buffer pool the thread uses a …
Re: KAIO vps, and bufwaits
In article <6bq06q$8tp$1@news.xmission.com>, Art S. Kagel <kagel@ns1.bloomberg.com> writes > >On Mon, 9 Feb 1998, Tony Tyrwhitt-Drake wrote: > >> Art, >> >> I was intrigued by your mention of a bug in the LRU queue selection. But >> mostly by the number of queues you mentioned. P…
Re: KAIO vps, and bufwaits
Even LRUS need love... How many CLEANERS and LRUS per CPU VP are you running? I've been using the "rule" of CLEANERS = LRUS = CPU VPs. What you're saying about the hashing makes good sense, I'm just trying to find a starting point for our machines (one has high BUFWAITs > 18%)…
Re: Re[2]: KAIO vps, and bufwaits
Any special reason your suggest prime? Art S. Kagel wrote in message <6bq77p$k3r$1@news.xmission.com>... > >On Tue, 10 Feb 1998 davin_harvey@dsti.co.uk wrote: > >> Art >> >> Just a small question. Is there any reason for keeping the number of >> LRU queues to a p…
Re: Re[2]: KAIO vps, and bufwaits
On Tue, 10 Feb 1998 davin_harvey@dsti.co.uk wrote: > Art > > Just a small question. Is there any reason for keeping the number of > LRU queues to a power of two? Everybody seems to use 8,16,32, etc. > Just habit, or what? Naw, just dumb programmer habits. …
Re: KAIO vps, and bufwaits
On Mon, 9 Feb 1998, Tony Tyrwhitt-Drake wrote: > Art, > > I was intrigued by your mention of a bug in the LRU queue selection. But > mostly by the number of queues you mentioned. Personally, I have never set > LRUS to a number anything like as big as 32, let alone 128, prefering…
Re: Another checkpoint situation
At checkpoint time one page cleaner is assigned to queue up the addresses of modified buffers to the global file descriptors for its assigned chunk. (This assumes that you are not using Kernel IO) It appears that all of your work between the check- point was for one chunk and th…
Re: Upgrading Informix from Online engine to Dynamic Server
Seth Grimes wrote: > > Jane Vohden wrote: > > > > I have been talking with Informix about upgrading our site from the > > 5.xx Online engine to 7.2x Dynamic Server. They said there was no cost > > I don't think that anyone has pointed out the mistaken terminology > h…
What's the difference between ODS 7.22 and 7.23?
What's the difference between Informix Online Dynamic Server version 7.22 and version 7.23? Thanks in advance. Bill Westphal Rodney District Council mis@rodney.govt.nz…
Re: Assert Failure and onstat
"Juan R. Guzman" <jguzman@remove_this_transre.com> wrote: >I know there is a problem with onstat -z on 7.11uc1, because once tech >support told me to do it and then my engine crashed. Then he apologized >because he had forgotten about a bug with the onstat -z. Again this is …
ODBC unix and dynamic SQL
Hi, Can someone give me some help on using informix odbc drivers (unix) with dynamic SQL on Informix-online dynamic server (7.22 unix) when I use "SQLprepare" I receive the message "too many or too few host variables given" but I think all is Ok R. Gueye…
Re: onstat -d,onstat -D
I believe 1001 indicates that the dbspace is a blobspace. I know that 2001 indicates that the space is a temporary dbspace. "Tony_Reynolds(Accounting & Purchasing System") wrote in message <67972r$caj@cssun.mathcs.emory.edu>... >Can anyone tell me the difference between a dbspa…
Re: onstat -d,onstat -D
I believe it in indicates that table in dbspace has been dropped. -Lin "Tony_Reynolds(Accounting & Purchasing System") <tr-2959@mail.necgroup.co.uk> wrote: > Can anyone tell me the difference between a dbspaces address with a > flag of 1 and a dbspaces address with a flag of 100…
onstat -d,onstat -D
Can anyone tell me the difference between a dbspaces address with a flag of 1 and a dbspaces address with a flag of 1001...... Tony Reynolds, NEC Group, Birmingham , UK 8-)) tr-2959@necgroup.co.uk tonyreynolds2@compuserve.com…
onstat -g ses
I have been building an index on an integer field for the 36 hrs on a table with 63 million row which is fragmented round robin on 28 fragments. The index is fragmented by expression on 28 dbspaces by expression mod(acct_num,28) = 0.... I am trying to monitor its progress and ha…
Re: Logical Logs -Explain
In article <3485C2BE.73FA@bloomberg.com>, "Art S. Kagel" <kagel@bloomberg.com> writes >Almost, Mark. It would be more accurate to say that a foreground write >happens when an application thread needs a buffer to write into and >cannot get access to one after a specified number o…
Re: Logical Logs -Explain
Mark Collins wrote: > > > Regarding Flushing of logs/buffers to disk > > 1)What is a FOREGROUND WRITE? > A foreground write is a very bad thing for performance. Basically, there are three ways > for modified pages to be written back to disk from the buffer cache: > 1.…
Re: Q about LatchWaits, BufWaits and LRU-Writes
Dirk Scheer wrote: [SNIP] > from 512 MB to 1 GB of memory and I've increased the BUFFERS from 40000 to > 200000. Now the performance is ok. But I wonder why the values of LatchWaits > and BufWaits are constantly growing and if this have still negative affects on > performance. S…
Onstat Utility
Hi, I'm using onstat -g ath and see threads that are slleping forever. What could this be? Are users not exiting properly from Informix? How do I kill these processes. Thanks Bob…
onstat and threads
Hi, I'm run onstat -g ath and I see threads that are sleeping forever. Do I kill these processes and what could it possibly be from. Users not exiting properly? Bob…
Re: es posible subir tablas a ram
Hola userios, (I'll not burden you with more bad Spanish) >if informix permit to locate a table in ram in transparent way for the >application. This is not explicitly possible in versions <= 7.2x, though frequently used tables should remain in the buffers via the LRU queueing…
Re: onstat -u, B-flag
Alexander Selg wrote: > > Hello All ! > > The command "onstat -u" gives some information about the userthreads. In > the 2.column you can see the flags to each thread. The 1.position > indicates the resource a thread is waiting for. > My question is: if there is a "B" on the 1.po…
Next Extent Calc.
Hi, I have INFORMIX-OnLine Dynamic Server Version 7.14.UD2. Does anyone know of a script or program to calculate the next extent size ? Thanks in advance Manuel…
Re: When does bufwaits get incremented ?
tony edwards wrote: > > Hey, > I've been trying to track down some information about when bufwaits is > incremented. I found the following in the ODS Admin guide... If after a limited number of attempts to find an unlocked queue, no free buffer has been found the thread …
Re: When does bufwaits get incremented ?
tony edwards wrote: > > Hey, > I've been trying to track down some information about when bufwaits is > incremented. I found the following in the ODS Admin guide... If after a limited number of attempts to find an unlocked queue, no free buffer has been found the thread …
Re: Mirroring
Jay Aymond wrote: > Is there some rule for defining how many LRU queues to have for a > certain number of buffers? Well, this came up in the optimization tutorial. One thing that we're going to try, as advised, is ramping up the queues to 128 for "large buffer" installs (or al…
Java and Informix Dynamic Server 7.x
Hi friends! I am trying to do server-side java cgi programming to connect to I-ODS 7.x. Do you know how I can do that? I heard it is possible to use the jdbc-odbc bridge( intersolve or openlink's), but the performance is too slow, because of jdbc to odbc and odbc to jdbc convert…
Restore problem
Hello, I am working on online 7.14 UD1. I would like to restore a dbspace but the command ontape -r -D ipptst_01 gives me the following error : Memory Fault There is no trace in the online.log file. I have checked the Unix kernel parameters that are OK. I have tried to check …
Onstat question
When we use the Onstat -u , sometimes we get this display: onstat -u INFORMIX-OnLine Version 7.12.UC1 -- On-Line -- Up 11 days 20:31:52 -- 142096 Kbytes Userthreads address flags sessid user tty wait tout locks nreads nwrites 332c020 ---P--D 0 inf…
onstat options
Hi, What are the best indicators of response time, trans/sec, and general load for monitoring an informix database... using the onstat program? Any help would be appreciated. Thanks Mark~…
Re: onstat
Steve Romankiw wrote: } } In onstat, what does "total" refer to. } } . } . } 1192132c Y--P--- 537 winterm - 12434068 0 1 240 } 0 } 13 active, 128 total, 44 maximum concurrent } } Thanks. } } Steve Romankiw } Executive Risk Inc. For Online 7.1, the total fi…
Re: onstat
Carol Davies wrote: } } Steve Romankiw wrote: } > } > In onstat, what does "total" refer to. } > } > . } > . } > 1192132c Y--P--- 537 winterm - 12434068 0 1 240 } > 0 } > 13 active, 128 total, 44 maximum concurrent } > } > Thanks. } > } > Steve Romankiw } >…
Re: onstat
Steve Romankiw wrote: > > In onstat, what does "total" refer to. > > . > . > 1192132c Y--P--- 537 winterm - 12434068 0 1 240 > 0 > 13 active, 128 total, 44 maximum concurrent > > Thanks. > > Steve Romankiw > Executive Risk Inc. From the Informix Administrat…
onstat
In onstat, what does "total" refer to. . . 1192132c Y--P--- 537 winterm - 12434068 0 1 240 0 13 active, 128 total, 44 maximum concurrent Thanks. Steve Romankiw Executive Risk Inc.…
onstat documentation
Does anybody have any good documentation for onstat? In case it varies to much from one version to the other I have online 7.11UC1. thanks…
Re: Informix 7.1.2.UC1: LRUS in /usr/informix/etc/onconfig
This is a multi-part message in MIME format. --------------C4C26D4394 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit David Williams wrote: > > In article <4rsf8p$kt@sjx-ixn4.ix.netcom.com>, Stuart Cracraft > <cracraft@ix.netcom.com> writes > >The…
Re: Informix 7.1.2.UC1: LRUS in /usr/informix/etc/onconfig
David Williams wrote: snip > LRU's too low means the there is contention among the queues and > Informix runs slower as processes have to wait before the can update > the queues. There is one mutex per queue which controls give thread > can update the queue. Remember que…
Re: Informix 7.1.2.UC1: LRUS in /usr/informix/etc/onconfig
In article <4rsf8p$kt@sjx-ixn4.ix.netcom.com>, Stuart Cracraft <cracraft@ix.netcom.com> writes >The On-Line manual on page 12-36 says LRUS should be either 4 or the >number of virtual cpus -- this is a very low number. > >Most of the Informix Press tuning books and chapters on tu…
Informix Certified Professional Program Update
Informix offers two certification paths. Each path requires the successful completion of two exams. Each exam is US $250 and is between 60-90 minutes long. * Database Specialist for INFORMIX-OnLine Dynamic Server 7.x 111 - Database Fundamentals Exam 112 - Managin…
Re: LRU writes
On Thu, 2 May 1996, Mickey Mestel wrote: > brian, > > > We have never had anything BUT chunk writes, and are trying to make > > better use of our BUFFERS. Should we be trying to increase the number of > > queues, maintaining the number of buffers, until we just start seeing LRU…
Re: page cleaner #1 timed out
> From informix-list-owner@rmy.emory.edu Tue Apr 30 03:41:00 1996 > From: Guy Germonpre <germonpre_guy/dis@bekaert.com> > Subject: page cleaner #1 timed out > Date: 30 Apr 1996 07:43:59 GMT guy, > Online 5.03.UD2 on Compaq proliant 4500. From time to time we get the > error > "E…
Re: Good Buffer Size For Tuning Informix?
Chris Jenkins (chrisj@informix.com) wrote: : The only really important factor in determining the number of buffers is : the read and write cache hit ratios reported by tbstat -p. Keep : increasing the number of buffers until these cache hit rates do not : increase when the system…
ONSTAT question
Hi there. onstat -u (version 7.1) sometimes shows a user thread with position 1 of the flag field set to Y. The Informix manual says it means "Waiting for condition". I cannot find anything else. What is a condition, and why is my thread waiting for it? Thanks for any help Ba…
Re: INFORMIX-Online Dynamic Server intallation
copy the standard onconfig file and make as few changes as possible to the different parameters. after you are sure you can bring informix online, should you begin to make changes to the onconfig parameters. Use ONMONITOR to make the changes. It will protect you from many mista…
INFORMIX-Online Dynamic Server intallation
I'm about to install INFORMIX-Online Dynamic Server V.7.1 on a SPARC 1000. Has anyone installed this database on a sparc before? If yes...do you have any suggestions or could you give me any advice on certain aspects of the installation you felt might be important to take notice?…
Re: Informix Locking Questions ???
Bill Border (border@col.hp.com) wrote: : 1. Does Informix do deadlock detection - we've observed : circumstances that appear to be deadlocks between : threads and they just sit there (no reads/writes/ : locks). Yes, Informix does deadlock detection. It traces all t…
Re: Keeping clean pages in shared memory
> If you have a DSS app, the buffer pool does not become dirty, so the > LRU_MAX_DIRTY will not have any impact. ...unless of course you're generating temp tables. Which just about all apps do at some time or another. akent@cix.compulink.co.uk (Andy Kent) ----------------------…
Re: Keeping clean pages in shared memory
Andy Kent writes: |> OK, so every Online person knows how the most frequently-used pages are |> encouraged to stay in shared memory by means of LRU queues. |> |> That's fine for dirty pages. A potentially dumb question then: what |> about clean ones? Does OnLine have a mechanism…
Re: Keeping clean pages in shared memory
We had a similar discussion on our project not only about read pages (which as Malcolm points out is moved to the beginning of the queue when read) but what happens when the page cleaner flushes a dirty buffer? Does the buffer end up in the free list or can it still be used to do…
Re: Keeping clean pages in shared memory
Andy, The LRU queue mechanisms apply to both clean and dirty pages. Malcolm Weallans Online Database Consultancy 2 Arkley Court Maidenhead Berks SL6 2YR Phone 0628-72154 Fax 0628-37463 CIX - onlinedbc…
Re: LRU writes
Graeme Sargent writes: |> Can anyone explain exactly what triggers an LRU write in Informix- |> OnLine, or what the distinction is between LRU writes and Idle writes? |> |> According to the documentation (and the Informix training courses) the |> only thing that triggers an LRU w…