Oninit® Archive
Results for “onstat -g lmx”
CHK REQ times suddenly getting very long
Clive: You should do an IIUG TechTalk about managing that many TS devices in Informix! That aside, here are the mechanics of what's happening, maybe it will help you figure out what changed and how to manage that: When a checkpoint is triggered the engine locks a mutex latch that…
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 ------------------------------…
flags (onstat -g ses)
OK, to track locks, latches, or waits, start be determining the thread address(es) for the session of interest with onstat -u. That's the first column in the onstat -u report. You can filter on session id in the third column: onstat -u |fgrep 14123 46bf98a0 ---P--- 14123 in…
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…
IDS 12.10 - temporary dbspaces locked
Hi, I have repaired that my systems have several locks over temporary dbspaces on syslocks. I have seen some information about using RAMDISK to improve performance. Can somebody give some help about this? How to do it and if it is the case, how can I detect that kind of concurre…
25582 error on high volume of short live trans
Hi Ronald, I'm looking at this old post and probably the problem has already been solved. I assume that when the 25582 error occurred there were also several nsf locks records in the onstat -g lmx output. I would say you should increase the NUMFDSERVERS parameter to 35 and try. …
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…
Waits on the physical log buffer in v12.10
Can you post a thread stack from onstat -g stk? Regards, David. > On 19 February 2018 at 13:54 BENJAMIN THOMPSON <benjamin.thompson@skybettingandgaming.com> wrote: > > > Hi, > > Since an upgrade to 12.10.FC10X1 (from 11.70) we are seeing a lot more waits > on the physical log b…
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.…
Threat : swth:sbt_subclass_lpgsrc_ol_796
Hi Ley! Probably you're facing a kind of memeory bottleneck. I had a similar issue related to memory contention on my environment (that was shown through onstat -g wmx) and it lead to a defect. Also, I had many other memory contention issues during my IBM journey on huge custom…
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…
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…
Re: RE: onstat -g glo: cpu efficiency
More CPU power will give you more long spins. I believe that's normal and expected although this is a grey area... Let's start by understanding what is a longspin. When a thread tries to hold on to a mutex/latch it starts by "spinning". That is, trying in loop to get the mutex. I…
Re: Please vote for a new Informix RFE:
Agree to disagree ... works for me ;-) Small block size: I ABSOLUTELY agree. However, that goes to my comment about not having control over the storage configuration. Less and less as the years progress. Storage guys LOVE block sizes from 1MB to 256MB while Informix (and most ot…
Re: Please vote for a new Informix RFE:
As I wrote, I disagree, so we'll agree on disagreeing. R&D will decide. Currently on a really busy system we have many threads waiting on a flush (in a worse case scenario). Some of these threads are not doing COMMITS. They just need a buffer to write to. Overall group commit wil…
Re: Please vote for a new Informix RFE:
As I wrote, I disagree, so we'll agree on disagreeing. R&D will decide. Currently on a really busy system we have many threads waiting on a flush (in a worse case scenario). Some of these threads are not doing COMMITS. They just need a buffer to write to. Overall group commit wil…
Identify tables by session
Hi, I have some concurrency problems with some tables, I use the opn option over onstat, but there is any way I can get the tables name used on each session. Because I don't have any locks for informix, so it is difficult to understand the problem! I apprecitte any help! Thanks…
IDS - Record Lock
If a table is only ever used for selects, then the locking mode doesn't matter. For OLTP type systems where concurrency is required, you should probably be using row level locking for most tables, unless some tables have mass changes, where you may want to use page level, but th…
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)…
RSS not working
-bash-4.2$ onstat - IBM Informix Dynamic Server Version 11.50.FC9 -- On-Line --…
Re: spin locks
Added to FAQ. Regards, David. > On 23 September 2013 at 22:52 John Miller iii <miller3@us.ibm.com> wrote: > > > The two mutex which are directly effected are sh_stamp and po_lock, but > the VP_MEMORY_CACHE_KB speeds up malloc()/free() functionality > which can have an indirect …
Re: spin locks
Added to FAQ. Regards, David. > On 23 September 2013 at 18:47 John Miller iii <miller3@us.ibm.com> wrote: > > > The output of onstat -g spi is so low, it is really not even worth > worrying about. The po_pool lock > is the hottest mutex which has 118 latch waits in over 9 hours…
Re: spin locks
Added to FAQ. Regards, David. > On 22 September 2013 at 02:20 Art Kagel <art.kagel@gmail.com> wrote: > > > IB that is the memory pool latch. You can probably reduce the activity on > it by enabling VP_MEMORY_CACHE_KB so that each CPU VP holds on to some of > the memory from the…
Re: locked mutexes!
Added to the faq as useful to know. Jacques add to the credits list for the FAQ! David. > On 11 September 2013 at 16:08 JACQUES RENAUT <jrenaut@us.ibm.com> wrote: > > > Original post: > > Hi, > > I had some user sessions in locked mutexes > > onstat -g lmx > Locked mutexes: > …
wait for mutex
Original post: Thanks, Fernando! Here it is, confused ... We indeed have ER slow/ data queued issue now Frank informix@walter ~]$ onstat -g wmx IBM Informix Dynamic Server Version 11.50.FC8 -- On-Line -- Up 00:54:05 -- 11847728 Kbytes Mutexes with waiters: mid addr name holde…
Informix online index creation/deletion mechanism
Ok Art, thanks a lot for your explaining. I am comparing with other engines mechanism, that´s why I´m asking, Art. PostgreSQL for example, waits for any transaction to complete, before the index creation, and does a full table scan 2 times, in order to be able to do a concurrent…
Informix upgrade
Can we upgrade informix from Dynamic Server Version 11.70 to 12.1 workgroup edition directly?…
spin locks
IB that is the memory pool latch. You can probably reduce the activity on it by enabling VP_MEMORY_CACHE_KB so that each CPU VP holds on to some of the memory from the central pool and so has to interact with the pool latch less frequently. Art Art S. Kagel, Principal Consultan…
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.…
locked mutexes!
Original post: Hi, I had some user sessions in locked mutexes onstat -g lmx Locked mutexes: 8777 c00000019a5c0f30 uselock0 2708810 0 8778 c00000019a619f30 uselock1 1683484 0 8779 c00000019a620f30 uselock2 2708811 0 I was able to trace those sessions using holder thread id and…
Set lock mode to wait #
Hi all, This may be an obsolete question but "what are the implications of the following statements in concurrency control:" set lock mode to wait 10 update tab_name set..... Any adverse effects if we remove the "set lock mode to wait" statement?. NB: we dont' have "transaction …
DB_locale or local naming convention
Hi, I already mention the informix version. IBM Informix Dynamic Server Version 11.70.TC1IE…
Re: IDS 11.7 Tuning help
I'm afraid I'm missing something... Can you better define the slowness? Do the sub-second queries take longer now? Or do you believe it's the connection establishment that takes longer? Make sure you follow John's suggestions... A few more questions: - Are you sure ther is no s…
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,…
Locks, locks everywhere
Hi people, asking from help again, hope you all doing fine. In 1 of our [data] servers we average more than 1000 users, there are informix 4gl applications, odbc and .net (sqli), the problem is there is some application's concurrency that cause a lot of locks, and you know bette…
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 …
lock table in exclusive mode
[Second send; omitted the list first time.] On Tue, Jan 24, 2012 at 13:32, Tom Lehr <tomcaml@gmail.com> wrote: > the manual states "[Lock table in exclusive] mode denies other processes > both read and > > write access to the table". > Does it also affect the dynamic allocatin…
could not insert new row into the table
Currently this problem was not solved. Currently we are doing the data entry & there are 10 concurrently users insert the data. When there are max 4 concurrently users insert data that time there is no error occurred but when concurrently user greater than 4 that time it gives a…
Re: Mutex wait
Hi, We have tried to set NUMFDSERVERS to 1 on 11.50 but it did not help. Now, we trying to upgrade to 11.70. ________________________________ From: VIKAS HIVARKAR <vikas.hivarkar@gmail.com> To: ids@iiug.org Sent: Wednesday, September 21, 2011 4:20 PM Subject: Re: Mutex wait [24…
Mutex wait
Hello All, IDS 11.50.FC8W2 on HP-Unix Reposting this issue as I did not got any response for my earlier thread and yesterday we again saw a near outage due to mutex waits in the database. We experinced some dip in our performance(load jobs) and while checking the user I saw qu…
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.…
Error IX000 on select for update
Hello, i've have this problem: When i execute this query: EXEC SQL BEGIN WORK; EXEC SQL SET LOCK MODE TO WAIT; SELECT bdc_stato_ddt FROM informix.bolcli WHERE bdc_key_soc = '5' AND bdc_key_tipo_bol = 'V' AND bdc_key_num_bol = 168582 FOR UPDATE sometime i've receive an error wi…
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…
Queries waiting for mutex
Hello all, Yesterday afternoon we ran into a problem. All sessions selecting or modifying data stopped responding to users. Onstat -u showed all of these sessions in a status of waiting for mutex 'S--P---'. After gathering onstat -a and onstat -g all information, I restarted Inf…
Determining lock table size
On Sep 25, 6:42 pm, red_valsen <red_val...@yahoo.com> wrote: > How can I determine the instance's lock table size? My instance is > configured for an initial one million locks, but my users are running > PeopleSoft processes which lead to lock table overflows. I can easily > se…
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…
How to check informix DB bottlenecks
Hi All, How to check the informix tables for bottlenecks? i am having problem our database and the user are explaining that it is a DB problem. I verified the logs and there's no valid error on the log file... I've used onstat -g sql, onstat -g ses, onstat -g lmx, onstat -k for…
What does onstat -g lmx spots?
Hi all, quick question, what does onstat -g lmx tell you? when I face a slow down and I check "onstat -g lmx" output saying there is a pt_# mutex with a holder and a long queue of threads waiting for that resource, does it mean that the thread holding the lock is generating the …
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…
Re: Configuring IDS for multi-threaded processors
Niagra 2 is just as bad as Niagra 1 just worse because is supports more cores and more threads per core. The major actual improvement of Niagra2 over 1 is that Niagra1 only had one FPU per chip while Niagra2 has one per core. Otherwise, Niagra2 is probably worse than Niagra1 be…
Re: Configuring IDS for multi-threaded processors
Hi Art, Can you tell me if this behave occur with processor Niagra 2 (UltraSPARC T2) ? Where I can get documentation about this kind of information? threads optimization on Sun Processors (T1 and T2)... --- Em seg, 8/6/09, Art Kagel <art.kagel@gmail.com> escreveu: De: Art Kage…
Re: Configuring IDS for multi-threaded processors
David, You cannot take advantage of the virtual threads in the Niagra processors. They were optimized for POSIX threads and perform poorly for single -OS LEVEL- threaded applications such as the oninit processes in IDS. To take best advantage of the Niagra processors with IDS y…
Configuring IDS for multi-threaded processors
> From: david@smooth1.co.uk > > On thing you may find is that certain latches/mutexs with in the > instance run hot as they are not tuned for such a large number of CPU > VPs, making > the latches more fine grained make removed bottlenecks with the number > of CPU VPs. > > > I w…
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 …
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…
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…
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…
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.…
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…
Re: Informix Session Information
Fernando Nunes wrote: > Marco Greco wrote: >> Dave wrote: >>> Hello, We have the following situation. Our 4GL developers have a need >>> to identify and save in a variable the current session isolation >>> level. If the isolation level is not "dirty read" they would set it >>> t…
Re: NETTYPE NET/CPU
On Sep 17, 12:37 pm, "Art S. Kagel" <art.ka...@gmail.com> wrote: > On Sep 17, 12:59 pm, mohitanch...@gmail.com wrote: > <SNIP> > > > I am posting it again as this is a separate question: > > > But when NETTYPE is set to NET it spawns different set of oninit, > > which is addition…
Table Rows locking issue, how & Why?
Hello All, I am having problems due to the rows locking issue, the problem is that with the concurrency, that i have locking one row in a table but due to this other rows in that table also gets locked, this is very critical, can you please let me know what should be done??? i …
Re: Locking in ISAM files
amit.atray@gmail.com wrote: > On Jul 27, 9:07 am, Jonathan Leffler <jleff...@earthlink.net> wrote: >> amit.at...@gmail.com wrote: >>> I intend to use, record level manual locking on ISAM files. >>> my code will be somewhat like below >>> ==========================================…
Locking in IASM files
amit.atray@gmail.com wrote: > I intend to use, record level manual locking on ISAM files. > > my code will be somewhat like below > ====================================================== > fd_emp = isopen ("employee",ISINOUT+ISMANULOCK); > > isread (fd_emp,emprec,ISEQUAL+ISLOCK)…
Duplicate serial in Informix 7.2.3
On Jul 25, 2:18 pm, pedro <pedro.e.sa...@gmail.com> wrote: > Hi, > > I've developed an webservice application which accesses an informix > database. > When the service is invoked, the application executes some business > logic, opens a transaction inserts values in 3 tables (let'…
RE: Named user lock facility in IDS?
On Jul 23, 4:07 pm, "Ian Michael Gumby" <im_gu...@hotmail.com> wrote: > David, > > So what you're trying to do is use the database to contain data so that your > external applications can > do some form of mutex locking? > > _______________________________________________________…
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: 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…
Re: IDS & WAS
Deniz Karakus wrote: > Hi again, > Our customer using IDS9.40FC3 with WAS 5.01 on AIX 5.2 for a financial > staff, And they realized to much more lock request activity for less > trancastions. while I was searching some info, I found > IFX_XASTDCOMPLIANCE_XAEND and DISABLE_B16242…
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…
CPU idles
Hi, First: it is possible to set the NUMCPUVPS parameter to a higher value than actual processors in the system. This sometimes leads to better response times. (when you encounter idle time on your CPU (using sar) and the number of active threads is not decreasing). We once had …
RE: Let me be the first
Hi, Madison, Does it mean, that you are going to implement MVCC (multi-version concurrency control) in IDS? What type of MVCC are you going to implement: Postgress/MySQL-InnoDB type (when UPDATE is internally converted by the database server into INSERT, and all versions of a r…
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…
Comments please
>From a developer..... We perform locks on a table such as the following: update <table> set <col> = <col>; within transactions in order to create a lock on a row (to prevent deadlock/concurrency issues). These updates are not shown in the logical logs, presumably because it…
Re: oncheck -cc hangs
Floyd Wellershaus wrote: > Any idea why we can't get an oncheck -cc on our big database ? > We have 5 instances on this box, one of them is a terabyte, with about 80,000 tables. > Oncheck -cc runs perfectly on all of them except the big one. It seems to just hang there. After 2 d…
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…
Re: Informix Guys Help Help Help
Thanks, I'll give it a try. Superboer wrote: > loonnggg shot: > > may be you compiled your spl's (update statistics for procedure) with > pdqpriority set. > when a program execute's it, it'll try to set pdq. > > if your system has switched it of, it will not set pdq but it may c…
Informix Guys Help Help Help
I recently posted this question in this group, with no response. we are having this problem for a long time. And no one (not even IBM) has provided a solution. So here is the question again to all your great informix gurus and hope someone reads this. This happens mainly when …
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?…
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…
RE: Track a session to a Buffer
Hi Zev. You mean the following ? Userthreads address flags sessid user tty wait c000000007c17338 B--PR-- 175155 testdb - c000000000e104b8 If this is correct, probably btscanner is holding buffer. onstat -b -> onstat -g ath -- Tsutomu Ogiwara fro…
Track a session to a Buffer
Hi All, I just had a case where onstat -u returned a 'B' as the first flag in the second column for over 100 sessions. The wait column for all the sessions had the same hex number. Is it possible to track down the session that is causing all the others to wait? I tried onstat…
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!…
RE: Retrieving SERIAL identifiers in a concurrent environment
So, in order to exploit it as a SQL query result, I should address a statement such as this (please gimme your advice...): SELECT SQLCA.SQLERRD[2]; Is that right? Furthermore: is that concurrency-proof (is it isolated from concurrent connections)? Thanks, Keith Simmons, Keith…
Retrieving SERIAL identifiers in a concurrent environment
Hello all Working on IDS 9.30, I need to retrieve the identifier (say: SERIAL-typed ID as primary key) of the latest row immediately after having inserted it, so that I'm able to refer it in related tables. Till now I've used the simple-though-awkward (brute force!) "SELECT FIR…
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: MGM Mutex Locks hangs the system
What OS and version? What Informix version? What mutex locks? onstat -g mgm gives? onstat -g lmx gives? onstat -s gives?…
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.…
Re: IDS 10 erratic run times
1. Try running onmode -F before each run (free shared memory segments/blocks and general tidy up memory structures). 2. What does onstat -g stk <thread id> give for the sqlexec (or sessions threads) and the kaio threads during the freeze? Repeat several times to see what func…
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: IDS performance problem
Please post the onstat -c results, and onstat -g seg. You might be low on memory assigned to the Buffers. Being that your'e running 64 Bit if you have the memory try increasing the memory paramaters and the BUFFERS parameter. Also it's possible you have a batch job running that'…
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:…
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…
Re: Advanced Internals - Madison
Well --- That's going to be hard to do. The spin lock is not the same as a mutex. The purpose of the spin lock is to protect against inter-process access to the same memory. The mutex is to protect against inter-thread access to the same memory. Every mutex has a spin latch a…
Re: FW: Latch Waits
I was talking about DS_HASHSIZE and DS_POOLSIZE which configure the distribution cache, not about DD_HASHSIZE and DD_HASHMAX which configure the dictionary cache and which use a mutex with a different name. Michael Colin Dawson wrote: > I have DD_HASHSIZE=997 and DD_HASHMAX=27,…
RE: FW: Latch Waits
I have DD_HASHSIZE=997 and DD_HASHMAX=27, these numbers were arrived at by running a script I downloaded from the s/w repository for calculating DD_HASHSIZE and DD_HASHMAX values. I have just rerun it and for a HASHSIZE value of 997 HASHMAX should be a minimum of 40. I'll check t…
RE: FW: Latch Waits
I have DD_HASHSIZE=997 and DD_HASHMAX=27, these numbers were arrived at by running a script I downloaded from the s/w repository for calculating DD_HASHSIZE and DD_HASHMAX values. I have just rerun it and for a HASHSIZE value of 997 HASHMAX should be a minimum of 40. I'll check t…
FW: Latch Waits
I'm running 7.31.FD4 on Solaris 9. Server had 32Gb memory 16 CPU Regards Colin >From: "Colin Dawson" <cjd_1955@hotmail.com> >Reply-To: colin@colindawson.com >To: informix-list@iiug.org >Subject: Latch Waits >Date: Sun, 13 Mar 2005 09:34:29 +0000 > >Hi, > >Yesterday I started …
FW: Latch Waits
I'm running 7.31.FD4 on Solaris 9. Server had 32Gb memory 16 CPU Regards Colin >From: "Colin Dawson" <cjd_1955@hotmail.com> >Reply-To: colin@colindawson.com >To: informix-list@iiug.org >Subject: Latch Waits >Date: Sun, 13 Mar 2005 09:34:29 +0000 > >Hi, > >Yesterday I started …
Re: Latch Waits
Colin, I assume you are running some 7.3x version? The mutex name you see is truncated and really is "global cache mutex". This is either the mutex protecting the distribution cache (holding update statistics medium and high information) or the one for the stored procedure cache…
Latch Waits
Hi, Yesterday I started getting a lot of latch waits - onstat -u had "S" in the 1st position in the flags column. onstat -g lmx showed a lot of processes waiting on a mutex called "global cach" I cannot find much information about this mutex. The question I'm asking is why woul…
Latch Waits
Hi, Yesterday I started getting a lot of latch waits - onstat -u had "S" in the 1st position in the flags column. onstat -g lmx showed a lot of processes waiting on a mutex called "global cach" I cannot find much information about this mutex. The question I'm asking is why woul…
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…
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…
Re: More CPUVPs than processors
Solaris has something called turnstiles in the thead management code that was written to help alleivate mutex locking and priority problems. In particular it removes the priority inversion problem associated with sleep queue implementation of thread and resource control. This …
1.6 billion lockreqs
Geezer From The Freezer wrote: > If I have 1.6 billion lockreqs is this going to create a major problem (lag etc) > if so does increasing the locks help? lockreqs is a counter, so there has been 1.6 billion requests for a lock since IDS was started or onstat -z'ed, but that does…
Re: Fatal error in ADM VP at mt.c:12239
Here is another part of the af file: ===========------------- - - - - - - /home/informix/bin/onstat -F: IBM Informix Dynamic Server Version 9.40.FC2 -- On-Line -- Up 1 days 20:14:49 -- 2549264 Kbytes Fg Writes LRU Writes Chunk Writes 0 8396195 30928…
Re: Problem with ER
Heinz, You are seeing Bug 144544. Please contact tech support on this problem. "Heinz Weitkamp" <heinz.weitkamp@westfleisch.de> wrote in message news:<cjukts$n7q$1@news.xmission.com>... > Hi all, > > IDS 7.31.UD4; SCO 3.2 5.0.6 > > 7 Server with update everywhere in ER. > > On…
Problem with ER
Hi all, IDS 7.31.UD4; SCO 3.2 5.0.6 7 Server with update everywhere in ER. On one Server (A) ER hangs. The other Server can't replicate Data to the Server (A). Server (A) does't replicate Data to the other Server. "cdr disconnect serv serverxyz" on server (A) doesn't come bac…
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'?…
Re: IDS 7.31.UD1 hangs
"Esteban Casuscelli" <estebanc00@yahoo.com.ar> ???????/???????? ? ???????? ?????????: news:8a8f14b9.0409070551.3c59d1f0@posting.google.com... > Denis, > > we need more info to diagnose the problem. Esteban, thank you for your answer, I've almost lost my hope. > You said the eng…
IDS V7.30 and Windows 2000
Can Informix Dynamic Server Version 7.30.TC6 be run on a Windows 2000 host system? TIA Erwin…
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…
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…
locking and processes outside the transaction....
BigBob wrote: > I need to lock a ROW in an Informix DB and hold onto that lock until > the end of a transaction. My first attempt at this was to begin work, > lock, etc. This worked great for the application itself. > > However, the problems arose in system testing we found some…
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.…
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…
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: 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…
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…
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…
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…
wait statistics - meaning of mt yield
Andreas, I'm guessing "mt yield" is a mutex thread yield... This wouldn't matter if your app and DB are on the same box or not. IF this is a mutex thread yield... i think a mutex lock/latch is like an atomic/internal lock.... not the typical lock seen by "onstat -k". I reserve …
Fast Recovery (CKPT REQ) --- Blocked:CKPT
Informix Dynamic Server Version 7.31.FD1 SunOS 5.8 I am trying to restore from tape with onbar -r but the server keeps on going into a blocked mode. The server status is shown as : "Informix Dynamic Server Version 7.31.FD1 -- Fast Recovery (CKPT REQ) -- Up 01:36:50 -- 1332224 K…
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?…
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: lock table overflow
On Wed, 20 Aug 2003 16:22:36 -0400, "Mark Denham" <mkdenham@comcast.net> wrote: > >The number of locks that you require depend upon the work being performed >and the number of concurrent users doing work. > >20k worth of locks is very small in most OLTP environments that I have…
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: Unexpected behavior
hmmm interesting stuff - could we have a look at the stack of thread 469? also from an onstat -u | grep 469, what's it waiting on? onstat -g lmx or onstat -g con, do they show a matching value on the wait column above? Art S. Kagel wrote: > Has anyone seen this one before? > > …
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…
onstat -u ( flag S in position 1 )
Ricardo, The S in position one indicates that the thread is waiting on a mutex. Look at onstat -g lmx and onstat -g wmx to see what mutex this is, and who is owning it. You should be able to grep the owner address from -g wmx and -g lmx out of the onstat -u output. JMM John Mi…
Re: AW: NETTYPE
Dan, I've researched and tested this one to death long ago and it still holds. To explain. We originally went with the recommendations in the admin guide and had only one CPU listener for shared memory connections and a couple for TCP connections. Since most connections here are…
Re: Server hangs with "mutex wait nsf.lock"
The culprit is your NETTYPE entry for tcp connections. TCP listeners should NEVER be set up in CPU VPs. This causes several problems. First the CPU VP cannot practically block on the sockets waiting for new connections and requests from existing connections so it must poll the so…
Lock
onstat -? | grep -i lock -k Print locks spi Print spin locks with long spins lmx Print all locked mutexes rbm Print block map for resident segment nbm Print block map for non-resident segments onstat -k output Locks address wtlist owner lkl…
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…
shared fields between tables
Lora, This is another case of "Tell me how to make the solution to my problem that I can't make work, work." You're not the first to do this nor the last. PLEASE, post the problem not your solution and we can help. Based on the description here I have no idea what you want to…
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 …
IDS 7.3x on Win2000?
Does Informix Online Dynamic Server 7.3x runs on Windows 2000 (Professional)? Thanks for your help. Guy Dillen…
what to check when informix freezes??????
A few other things to check.... Make sure your instance isn't rolling back from a long transaction... Check to see if you are in a deadlock situation.. Use onstat -g lmx (on 9.x anyway) to make sure you aren't running into a mutex lock bug. If you have Shared memo…
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: Strange Informix Error messages
Nick Palmer wrote: > > Hi all, > > Hopefully someone here can shed some light on some problems we are having. > We are using IDS 7.31 on an HP box (HP/UX 10.20 I believe) and running a > client/server app using the Informix ODBC drivers. Sometimes when we are > using our app, we…
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…
General concurrency question
We have a simple record locking schema for concurrency control in a critical code section: 1) WAIT UNTIL LOCK RECORD NOTFOUND 2) INSERT LOCK RECORD .. 3) INSERT ROW .. 4) DELETE ROW .. 5) DELETE LOCK RECORD The step 1 seems to work and sets users to wait their turn (waiting the…
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…
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…
Lock Contention Mystery
4GL/IDS Gurus: We're currently running an on-line 4GL 6.01 application to maintain Item Information such as description, cost, retail, store authorization on an IDS 7.20 running on HP-UX 10.10 (HP K400 machine). During the night and on weekends we run several *concurrent* UNLOA…
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…
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…
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…
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…
update statistics concurrency with application SQL
roswil@my-deja.com wrote: > > In article <85ge56$se5$1@nnrp1.deja.com>, > roswil@my-deja.com wrote: > > Is there any real or serious problem with running update statistics > > concurrent with application's SQL ? Does locking occur that severely > > impacts contention between …
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: Strange advises
It sounds like what your basic questions are is "Do these suggestions make sense?" and "What can I do to improve performance?" > The first is "You have KAIO running. We are aware that this feature is > causing > performance problem with Informix implementation. Recommend to n…
Re: Strange advises
Eugene Nechayev wrote: > > CROSSPOSTED: ukr.comp.dbms.informix > > Hi Informixers, > > I have two very strange recommendations that isn't true from my point of > view > from one my consultant. I hope Informix community is able to make the > advises > more clear for me. > > HPUX 1…
ISAM error -113 in IDS 7.31
Micha Meier wrote: > > We are getting the error -243, ISAM -113 from time to time, in IDS 7.31.UC2 > on Solaris_x86 5.7. The funny thing is, that it says > > -113 ISAM error: the file is locked. > > Another user request has opened the file (table) that was requested in > exclu…
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…
Long spins or onstst -g spi. Need any information.
First let me state that you do NOT have a spin problem. The reports you post show an engine that is healthy in this respect at least. I will try to explain as many of the various locks and latches as I know about below: Eugene Nechayev wrote: > > Hi Informixers > > Can somebod…
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…
Re: lock problem
From: "Sackwitz, Antje" <Sackwitz@vst.vossloh.de> > >coming from the Oracle world I focus a problem in my informix database. >In a table with a lot of concurrent activities on that table (insert , >update, select) >and having a lot of rows the select very often runs into a lock a…
lock problem
Hi, coming from the Oracle world I focus a problem in my informix database. In a table with a lot of concurrent activities on that table (insert , update, select) and having a lot of rows the select very often runs into a lock and therefore can't proceed the select. How can I con…
SMI to Detect a Stalled Checkpoint
In article <7uq7d7$7fp$1@nnrp1.deja.com>, Jacob Salomon <JSalomon@bn.com> writes >(Re-Send - first post seems to not have taken) >Hi Family. > >I have been following some threads regarding checkpoints taking as long >as *20 SECONDS* (gasp). OK, the guy with the 80 second checkpo…
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…
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…
Re: 4gl experts ( Mr. Leffler?) please help, how can I speed up this 4gl?
In article <37B96EAE.41EA7DA0@bloomberg.net>, kagel@bloomberg.net wrote: > Obnoxio The Clown wrote: -- SNIP -- > > Can't argue about the rest, but why do you say this? I've never > > seen any empirical proof that page level locking offers any > > performance benefits... > > I'm…
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.…
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…
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…
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.…
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…
Row lock level
Jorge Puente Beltran wrote: > > Hi all, > > Could someone explain me how Ifx manage lock level? I'm working with an > IDS 7.30 and suffering the next: > > I got a table with row lock level. It has a unique cluster index by two > of its columns. I´m locking one row…
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: 7.31 is it the answer?
Nicole Guffey wrote: > > Anyone know when 7.31 for NT will be out, if it's not already? Also, > does anyone have the quick and dirty on what has been fixed/improved in > 7.31, or at least point me in a direction (other than informix sales) > where I can get GOOD technical info o…
INSERTING INTO A DATABASE TABLE CONCURRENTLY
Vincent Birlouez wrote: > > Hello, > > Is it possible for more than one process to insert rows into a databse table > at the same time? > > I have more than one "C" processes that want to insert rows into the same > table concurrently. Some of them succeed but others fail with an…
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…
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…
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…
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?…
Re: Informix vs. Sybase vs. Oracle vs. (gasp) MS SQL Server
Anthony Mandic wrote: > > David Williams wrote: > > > Imagine 1 page with 2 rows one it. > > > > 1. Page level locking > > > > User A updates row 1 > > At the same time user B updates row 2. User B has to wait for > > User B to commit. > > You're forgetting l…
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.…
Informix access concurrency in MT environment
Hello, We have previously designed a shared library in HP-UX 9.04 (Position Independent Code), with esql/C. We want to port our shared library in multi-threaded environment HP-UX 10.20 As a result, our shared library will be called by threads at approximate…
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…
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 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.…
Re: ODBC, NT and Workgroup problem
As I don't need transactional work, I have executed this: ontape -s -L 0 -N my_BD_name and all 244, 243 and 271 errors have gone away. Before do that I also try changing bloking to page and so on, but my problems continued. Salute. In article <362FF485.7BF59F08@inx.net>, …
Re: ODBC, NT and Workgroup problem
Walter S. Tyszka wrote: > > Perhaps the type of locking used by the datasource is not the issue? > The isolation mode (or concurrency) of the user's process is what you > need to consider. > The sugestion by Mr. Kagel to "SET LOCK MODE TO WAIT n" is one posible > solution. Anoth…
Re: ODBC, NT and Workgroup problem
We already have those two set as the default database setting. But, we still get these errors from time to time. Any other reasons why? Thanks. Jun Nolasco nolasco@inx.net Walter S. Tyszka wrote: > > Perhaps the type of locking used by the datasource is not the issue? > The…
Re: Best database for web backend on Linux?
In article <70oiem$phd$1@news.bctel.net>, "Thor" <thor@echidna.net> writes: >we're still talking at cross purposes here. >if we're using "browse-mode" as the starting point .... > >The Optimistic Locking is: > >t1. Read >t2. Re-Read with Lock >t3. Update >t4. Commit / Rollback > …
Re: ODBC, NT and Workgroup problem
On Thu, 22 Oct 1998, Jun Nolasco wrote: > But, why is it that even with row level locking, these errors still > occur eventhough no one else is currently using the record in question > (but with others holding locks on other records)? And from the error > messages, it looks like…
Re: ODBC, NT and Workgroup problem
Perhaps the type of locking used by the datasource is not the issue? The isolation mode (or concurrency) of the user's process is what you need to consider. The sugestion by Mr. Kagel to "SET LOCK MODE TO WAIT n" is one posible solution. Another would be to "SET ISOLATION TO DIR…
Re: ODBC, NT and Workgroup problem
But, why is it that even with row level locking, these errors still occur eventhough no one else is currently using the record in question (but with others holding locks on other records)? And from the error messages, it looks like it is the index record that is locked, not the d…
Re: ODBC, NT and Workgroup problem
Jun Nolasco wrote: [Reply SNIPPED] > asevillano@gesfor.es wrote: > > > > Hello all, > > I have a problem in a NT 4.0 with INFORMIX Workgroup 7.23 and ODBC (Informix- > > cli). When I insert a lot of records with a unique program there is no > > problem, but when I execute severa…
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…
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?
In article <70jkv7$t5q$1@news.bctel.net>, "Thor" <thor@echidna.net> writes: >Why are you assuming that row level locking requires you to lock the data on >read/browse??? LONG transactions are even better when you can get atomic, >row-level, locks rather than page locks. Unless …
Re: Best database for web backend on Linux?
In article <70ijo9$r3i$1@news.bctel.net>, "Thor" <thor@echidna.net> writes: > It sure saves a tonne of coding (grab the sybase docs and read the = >timestamp work they suggest for high availability and avoid blocking, = >yuck). I think that you're speaking of Sybase's "browse mo…
Deployment Licenses of Informix Dynamic Server
I need a free Deployment Licenses of Informix Dynamic Server!…
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: 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: Locking and Isolation Levels
rbruenin@my-dejanews.com wrote: > > We have an application that adds records to a table. It runs constantly and > uses a stored procedure. The first thing it does is > Lock Table in Exclusive Mode > > At night we have a purge process that drops records from this same table. …
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…
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: 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…
Re: Baan IV / NT / SQL Server
We've been running on SQL Server since Oct 96 with 50 users. pcwong ott888208@intranet.ca rlwan@my-dejanews.com wrote: > Has anyone out there successfully run Baan IV, on a NT platform, using the SQL > Server engine? From my research, there are a number of companies running B…
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…
Baan IV / NT / SQL Server
Has anyone out there successfully run Baan IV, on a NT platform, using the SQL Server engine? From my research, there are a number of companies running Baan & NT, but they're using Informix or Oracle. The business unit will have less than 20 concurrent users so row locking vs p…
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: +…
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…
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…
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: "LOCK MODE TO WAIT" seemingly ignored
Mark Stevans wrote: > Hi. I'm programming in ESQL/C on Solaris for Informix 7.12. After my > "CONNECT" statement, I issue the statement "SET LOCK MODE TO WAIT", and > then my app does lots of "INSERT" operations. No problem when I run the > app alone. > > But when I try to ru…
"LOCK MODE TO WAIT" seemingly ignored
Hi. I'm programming in ESQL/C on Solaris for Informix 7.12. After my "CONNECT" statement, I issue the statement "SET LOCK MODE TO WAIT", and then my app does lots of "INSERT" operations. No problem when I run the app alone. But when I try to run multiple copies of my app conc…
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: Informix vs. Sybase vs. SQL Server vs. Oracle
Andreas Zeugswetter wrote: > Oracle's only advantage is with concurrent read and update, > since it does not need a read lock. > But if you use dirty read isolation, you don't have read locks in > Informix either. Oralce read a row without read lock and get current value withou…
Re: Informix vs. Sybase vs. SQL Server vs. Oracle
Liu jun wrote: > > Laura P. Grahame wrote: > > > > I am looking for guidance on selecting a database backend which can handle > > the multiple simultaneous row updates without slowing. > > That sounds like you want to select a DBMS backend with high performance > of Currency Cont…
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: Pessimistic Locking via ODBC
I use a stored procedure that I call from ODBC execDirect which returns to me the available number from table the procedure is something like this procedure next_serial() returning int set lock mode to wait 15 begin work select max(next_num) into next_num from tab1 let new_num = …
Re: Informix vs. Sybase vs. Oracle vs. (gasp) MS SQL Server
In article <3482318D.C4112DA5@voicenet.com>, "Scott C. Gray" <ickyspam_gray@voicenet.com> writes >David Williams wrote: >> >> In article <3481D92B.75AA9F0D@voicenet.com>, "Scott C. Gray" >> <ickyspam_gray@voicenet.com> writes >> >> page level locks give HIGHER PERFORMANCE yes B…
Re: Informix vs. Sybase vs. Oracle vs. (gasp) MS SQL Server
David Williams wrote: > > In article <3481D92B.75AA9F0D@voicenet.com>, "Scott C. Gray" > <ickyspam_gray@voicenet.com> writes > >> page level locks give HIGHER PERFORMANCE yes BItUT the reduce > >> concurrency and hence LOWER RELIABILITY. > > > >Be careful with your wording...…
Re: Informix vs. Sybase vs. Oracle vs. (gasp) MS SQL Server
In article <3481D92B.75AA9F0D@voicenet.com>, "Scott C. Gray" <ickyspam_gray@voicenet.com> writes >> page level locks give HIGHER PERFORMANCE yes BItUT the reduce >> concurrency and hence LOWER RELIABILITY. > >Be careful with your wording...locking granularity has nothing at >…
NEWERA -- Pessimistic locking
In pessimistic locking changes are automatically applied to the database when a row loses focus (or is it concurrency). But in my application I want to prompt the user to accept the changes or not. No problem, put message in the beforeRowApplied event and return true or false. T…
Re: HELP: Lock rows in Informix SE
In ver 5 SE or ONLINE, you may get locking error even if the row you are trying to update is not locked. There is something called adjacent row locking. E.g., if row A, B , C are in sequence, and you try to update B, we lock not only B, but A and C as well. We need to do that …
Re: HELP: Lock rows in Informix SE
In <34282B0B.82B@bloomberg.com> "Art S. Kagel" <kagel@bloomberg.com> writes: >It looks like you are being locked out of the row or page that you want >to update. What is the table's LOCK MODE (select locklevel from >systables where tabname = "mytable";)? If page mode (lockleve…
Re: HELP: Lock rows in Informix SE
Florian Kerbl wrote: > > UPDATE tablename > SET field = value > WHERE condition > > The above only works if the affected table is not already open. If the > table is open we get the following error messages: What do you mean "table is not already open". What other transactions …
Re: Lock Escalation
Does "SET LOCK MODE TO WAIT" affect uses performing SELECT statementes? I have not been successful in preventing users from getting errors 243, 244, 245 or 246 on SELECT statements by using "SET LOCK MODE TO WAIT". We typically check for these errors and retry the select. "SET…
Re: Lock Escalation
Herb Blacker wrote: > > Can someone please tell me if Informix v7.x does the following? > 1. I have a central table with row-level locking, committed read isolation. > 2. I have 30-50 people at a time doing updates to the table at random times > 3. I have 3-4 people doing queries…
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: Row and page locking
davin_harvey@dsti.co.uk wrote: > > Hi everybody, > > Does anyone know if there is a difference in the time it takes to > place a row lock rather than a page lock? No difference. It is just that if many rows on a page are to be locked in a typical transaction row …
Re: Need Locking Edification
Cosmo Lee schrieb: > We're having a problem that when we are running deletes from a table, > users are locked out from completing Selects, and Inserts fail. We > can't quite figure out why this happens . . . > If you want to have maximum concurrency, set the isolation to dirty…
Re: LOCKING, Too many concurrent updates on the same record (from mono- to SMP)
JF DENIS wrote: > > Hello, > > Here follows a porting problem of an application. > This appl was running on a mono-processor Unix system and has now to be > ported on a SMP Unix system (reason = the volumes to handle in the new > environment are much more important). > <snip> > …
LOCKING, Too many concurrent updates on the same record (from mono- to SMP)
Hello, Here follows a porting problem of an application. This appl was running on a mono-processor Unix system and has now to be ported on a SMP Unix system (reason = the volumes to handle in the new environment are much more important). environment = Informix (on Unix), but it…
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…
Illustra locking an Index ?
We have some concurrancy problems in Illustra that we think we have tracked down to a table/index level lock on an index. The confusing part is that this is happening when the base table is being updated but the column(s) being updated are not in the key OR the index. We are ther…
Re: message.log: lock table overflow
Xiong wrote: } } In informix message.log file, I found the following messages : } } 20:21:42 lock table overflow - userid ..., sessionid ... } ... ( Similar lock table overflow messages omitted ) } 20:28:40 lock table overflow - userid ..., sessionid ... } } …
Re: 7.22 onstat -u flags
On Thu, 13 Mar 1997 01:43:49 +0000, David Williams <djw@smooth1.demon.co.uk> wrote: > A condition is a mutex (latch). Look in $INFORMIXDIR/etc/sysmaster.sql > as search for "create table sysconlst". This is "{ Conditions }" and > contains one field "con_nwaits integer, …
Re: 7.22 onstat -u flags
In article <3326ED29.32C7@worldaccess.nl>, Gert van Eck <gvaneck@worldaccess.nl> writes >Allen W. Jantzen wrote: >> >> Well, I finally moved my production db to 7.22 from 5.03. After >> (finally) remembering to do an UPDATE STATISTICS and tuning >> the parameters, things seem OK…
MUTEX
Hi all, Our administrator system says me we have a lot of mutex on a machine UNIX (SunSolaris). How could I check if there is a problem with Online Server 7.14. I use the command 'onstat -g lmx'. How do I read the information to see if we have a p…
RE: Index Read Errors
> We're using stored procedures to update a set of tables on a data server > which are maintained by an invoice payment app used concurrently by 100 > or so users. The application sets isolation to DIRTY READ for each > session, yet during periods of heavy usage, stored procs ar…
Index Read Errors
We're using stored procedures to update a set of tables on a data server which are maintained by an invoice payment app used concurrently by 100 or so users. The application sets isolation to DIRTY READ for each session, yet during periods of heavy usage, stored procs are failin…
Re: New Era, VB, Delphi, PB
David Williams wrote: > > In article <32AC1AF7.671C@west.co.za>, "Mark D. Stock" > <marks@west.co.za> writes > > > >Oh now here I agree. This is one of my pet topics when giving Informix > >training. The development of both RDBMS's and OS's, in my view, is going > >to cross pa…
Re: New Era, VB, Delphi, PB
In article <32AC1AF7.671C@west.co.za>, "Mark D. Stock" <marks@west.co.za> writes > >Oh now here I agree. This is one of my pet topics when giving Informix >training. The development of both RDBMS's and OS's, in my view, is going >to cross paths somewhere in the not-to-distant fut…
Re: Locking...
I've worked on a number of large multi-user informix databases and where there are a number of users inserting / updating data in a table it has always been necessary to have row level locking. It's not correct to state that row level locking only locks the row you're updating, …
Re: Locking...
On 2 Dec 96 at 22:59, Romulo Albuquerque wrote: > I wish to know what locking mode is better: Row or Page Locking ? Please > help me. As Bob Dole is alleged to have said: "Depends". Page locking is more efficient (faster), but can cause unnecessary locks (reduces concurren…
Re: MULTIPROCESSOR OPTION 7.13
In article <327fa20d.27552573@news.netline.net>, Allen Jantzen <allenj@ndr.com> writes >The Informix DSA Administrators Guide, version 7.1, page 10-18 says > >"On some two-processor computers, you should only run one CPU virtual >processor because the overhead of synchronizing th…
Re: Re[2]: HELP Informix Locks
tvarnas@compulink.gr (Apostolos Varnas) wrote: <snip> >it depends how the data you want to update is distributed on the pages.At the >worst case if it is distributed across 1000 pages you will need 1000 locks. <snip> >Assuming your data is stored contiguous it is then placed o…
Re: How to handle deadlocks ?
In article <4piahv$stp@soft.softouch.bc.ca> joachim@softouch.bc.ca (Joachim Achtzehnter) writes: Date: Mon, 10 Jun 96 23:21:33 GMT From: joachim@softouch.bc.ca (Joachim Achtzehnter) If you follow a fixed locking order you can avoid most deadlock situations. Whet…
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: sysproc* lock problems
Johnny, This sounds a lot like bug #22101. But, I had thought that it was fixed in version 5.02. Mention the bug number to tech support and perhaps they can give you an explanation. (FYI, back when we had this bug, it could only be fixed by upgrading.) --Craig (craig@c…
sysproc* lock problems
Wondering if anyone could shed some light: We are having problems with two processes concurrently executing the same stored procedure. The second process dies with locking errors, because the first process has exclusive row locks on sysprocplan and sysprocauth (I determined this…
RE: sysprocplan Locking?
Neil, > Under what conditions might sysprocplan get locked? What version of which engine are you running? > We have a problem on one program which is used by man users and > we tracked the concurrency problem to a lock on sysprocplan. > Where do we start looking? Depend…
sysprocplan Locking?
Under what conditions might sysprocplan get locked? We have a problem on one program which is used by man users and we tracked the concurrency problem to a lock on sysprocplan. Where do we start looking? --------------------------------------------------------------------------…
Re: Performance Testing
Elisa, Your email address elisa@ccserv.cc.nccu.edu bounces (or there's something up with our mail system)... Are you using OnLine? Which version? I'm not sure that there is a fixed limit on the number of users. You are constrained by the number of semaphores in the o/s kerne…
Performance Testing
Hi, I have a very critical problem here. How many users the Informix DB engine can handle concurrently? In detail, how many read locks, write locks, and login locks can be handled in the same time by Informix DB engine? In what condition, the DB engine probably die. Had anyone h…
[Q] Concurrency/Locking Technique Problem
I am new to Informix and I've reached the problems in design of application for concurrent database use. Would somebody please to answer the following questions: 1. Does the ISOLATION LEVEL work outside a transaction? I tried CURSOR STABILITY ISOLATION LEVEL and have got a …
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: OPEN fails when active set includes a locked row
In <bpayneD795tz.CLy@netcom.com> bpayne@netcom.com (Bob Payne) writes: >We ran an experiment here on both versions 5 and 7 online engines. >Locked a row with one process and tried to update several rows with >another process. We never even got to the update because the OPEN of …
Re: Phantom Inserts
In article <3iicrs$7b7@jac.zko.dec.com>, chen_p@perfit.zko.dec.com (Paul Chen) writes... . . . Curiously wondering how others accomplish this... > >Actually, it is not necessary to prevent concurrent inserts in the >entire table in order to guard against phantom inserts. In Sy…
Re: HELP - No more locks
xrizzi@arcride.edu.ar writes: >HELP! >I insert a row in tables, ON-Line return the error -134. >In 'tbconfig' I have LOCKS = 2000 and in use there is 13 locks. >The ovlock = 78. >-------------------------------------------------------------------- >Message Log File: /usr/informi…
Re: from SE to Online: Experience??
If you port application made for SE you should set Online to be most simillar to SE: - use 'set isolation to dirty read' in the begining of application - set lock mode to row for any table with concurrent use: 'create table ... ( .. ) lock mode row', or 'alter table ... lock mod…
Re: row level locking and dead-lock prevention
>>From article <worp.51.001736A2@knoware.nl>, by worp@knoware.nl (Bart van der Worp): >> I have a question with respect to locking, dead-lock prevention and row >> (or key) level locking. [...] We are designing a automatic message >> exchange system. Some data is to be maintain…
Re: Undocummented: SET ISOLATION TO DIRTY READ
SET ISOLATION TO affects the level of isolation of a process while it retrieves rows. Isolation is the opposite of concurrency. Here is a short and rough description of the different levels of isolation: DIRTY READ acquires no locks (minimum isolation). COMMITTED READ insures th…
Re: Error -246
In article <2p1ddq$g0e@emory.mathcs.emory.edu>, jmathwig@STL-03SIMA.ARMY.MIL (Jim Mathwig) writes: |> Hi All, |> |> Need assistance with this row vs. table locking issue! |> |> When executing the following query: |> |> "SELECT rowid, * from table_name WHERE rowid = 425 FOR UPDATE…
concurrency control mechanism
Hi! I need to know what concurrency control mechanism informix 5.01 uses for concurrent distributed transactions. I know that it uses locking. Is that a 2PL? or does the sheduler compromize the serializability? Thanks a lot. sameer…
Re: Will key locking strategy in OnLine be changed?
> Not long ago I read an article in this group about the strategy used > in OnLine whereby locks are placed on adjacent keys when a row has been > inserted or deleted. Someone mentioned that they heard that this will > be changed in a future release. > > What I would like to know…
Re: 2ph commit references
You could try `Concurrency Control & Recovery in Database Systems' by P A Bernstein, V Hadzilacos, N Goodman (Addsion-Wesley, ISBN 0-201-10715-5). It covers 2PC (and 3PC) and locking and all sorts of things. Its fairly easy to read mostly, but not bedtime reading unless you suff…
Re: concurrency problems
Scott Myers writes (re concurrency problems) : > These errors are probably associated with trying to access rows that are > locked by another user. > > When you create tables with OnLine, the default is to use page level locking > (page size is typcially 2K bytes). To get r…