ONCONFIG and AIX

Hello All, I am looking for feedback, comments, etc. We are currently on IDS 10.FC4 on HP-UX 11 - migrating to IDS 10.FC5 on AIX on an LPAR partition on the i595 I have gotten this message in the log while performing some loads/alter tables/indexes, etc in development phase. "13:33:20 KAIO: out of OS resources, errno = 11, pid = 282828" I decided to turn off KAIO, which is what we have in our current Prod OLTP system on the HP's. Here is my ONCONFIG - thanks! Tom -------------------------------------------------------- #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.ol_tmsdb01 # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /home/informix/chunk_links/rootdbs # Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes)#ROOTSIZE 100000 # Size of root dbspace (Kbytes) - old size on rp01 ROOTSIZE 500000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters #MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRROR 1 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH /home/informix/chunk_links/mirror_rootdbs # Path for device containing mirrored root MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS phylogdbs # Location (dbspace) of physical log PHYSFILE 200000 # Physical log file size (Kbytes) was17000 # Logical Log Configuration LOGFILES 110 # Number of logical log files LOGSIZE 70000 # Logical log size (Kbytes) # Diagnostics MSGPATH /home/informix/iif2000/ids_10_FC5/Online.log # System message log file path CONSOLE /dev/console # System console message path # To automatically backup logical logs, edit alarmprogram.sh and set # BACKUPLOGS=Y ALARMPROGRAM /home/informix/iif2000/ids_10_FC5/etc/alarmprogram.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device TAPEDEV /dev/null # Tape device path TAPEBLK 32 # Tape block size (Kbytes) TAPESIZE 100000000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/rmt/0m # Log tape device path #LTAPEDEV /dev/null LTAPEBLK 32 # Log tape block size (Kbytes) LTAPESIZE 100000000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # Informix Dynamic Server staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a OnLineinstance DBSERVERNAME ol_tmsdb01 # Name of default database server DBSERVERALIASES ol_tmsdb01_shm # List of alternate dbservernames NETTYPE soctcp,2,100,NET # Configure poll thread(s) for nettype NETTYPE ipcshm,1,50,CPU # Configure poll thread(s) for nettype DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed env. RESIDENT 1 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 1 # 0 for single-processor, 1 formulti-processor #NUMCPUVPS 1 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vpsto one #NUMCPUVPS #NOAGE 0 # Process aging #AFF_SPROC 0 # Affinity start processor #AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 1400000 # Maximum number of locks # was 1000000 01/29/04#NUMAIOVPS # Number of IO vps PHYSBUFF 64 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes) CLEANERS 80 # Number of buffer cleaner processes#**SHMBASE 0x0 # Shared memory base address SHMBASE 0x700000000000000 # Shared memory base address SHMVIRTSIZE 3250000 # initial virtual shared memory segment size # was 824 mjb 3/8/04, was 1024000 4/27/04 tl, was 1280000 10/16/04 tl, 3000000 3/25/06 SHMADD 128000 # Size of new shared memory segments (Kbytes) # was 64000 mjb 3/8/04 SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 600 # Check point interval (in sec) ## was 300 2004/1/29 TXTIMEOUT 0x2 # Transaction timeout (in sec) STACKSIZE 128 # Stack size (Kbytes) # Dynamic Logging # DYNAMIC_LOGS: # 2 : server automatically add a new logical log when necessary. (ON) # 1 : notify DBA to add new logical logs when necessary. (ON) # 0 : cannot add logical log on the fly. (OFF) # # When dynamic logging is on, we can have higher values for LTXHWM/LTXEHWM, # because the server can add new logical logs during long transaction rollback. # However, to limit the number of new logical logs being added, LTXHWM/LTXEHWM # can be set to smaller values. # # If dynamic logging is off, LTXHWM/LTXEHWM need to be set to smaller values # to avoid long transaction rollback hanging the server due to lack of logical # log space, i.e. 50/60 or lower. DYNAMIC_LOGS 2 LTXHWM 60 LTXEHWM 70 # System Page Size # BUFFSIZE - OnLine no longer supports this configuration parameter. # To determine the page size used by OnLine on your platform # see the last line of output from the command, 'onstat -b'. # Recovery Variables # OFF_RECVRY_THREADS: # Number of parallel worker threads during fast recovery or an offline restore. # ON_RECVRY_THREADS: # Number of parallel worker threads during an online restore. OFF_RECVRY_THREADS 10 # Default number of offline workerthreads ON_RECVRY_THREADS 1 # Default number of online workerthreads # Data Replication Variables DRINTERVAL 5 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /home/informix/iif2000/ids_10_FC5/etc/dr.lostfound # DR lost+found file path # CDR Variables CDR_EVALTHREADS 1,2 # evaluator threads (per-cpu-vp,additional) CDR_DSLOCKWAIT 5 # DS lockwait timeout (seconds) CDR_QUEUEMEM 4096 # Maximum amount of memory for any CDR queue (Kbytes) CDR_NIFCOMPRESS 0 # Link level compression (-1 never, 0 none, 9 max) CDR_SERIAL 0,0 # Serial Column Sequence CDR_DBSPACE

Look to see if this environment variable could be of any use to you : IFMX_AIXKAIO_NUM_REQ="yourvalue" I had that issue and I set it to 4096 and the error msg went away. your system is probably using the default value if it is not set, you might need to increase it if you are using KAIO. This issue can also be resolved at the OS level too. "tomcaml@yahoo.co m" <tomcaml@yahoo.co To m> informix-list@iiug.org Sent by: cc informix-list-bou nces@iiug.org Subject ONCONFIG and AIX 07/27/2006 02:57 PM Hello All, I am looking for feedback, comments, etc. We are currently on IDS 10.FC4 on HP-UX 11 - migrating to IDS 10.FC5 on AIX on an LPAR partition on the i595 I have gotten this message in the log while performing some loads/alter tables/indexes, etc in development phase. "13:33:20 KAIO: out of OS resources, errno = 11, pid = 282828" I decided to turn off KAIO, which is what we have in our current Prod OLTP system on the HP's. Here is my ONCONFIG - thanks! Tom -------------------------------------------------------- #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.ol_tmsdb01 # Description: Informix Dynamic Server Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /home/informix/chunk_links/rootdbs # Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes)#ROOTSIZE 100000 # Size of root dbspace (Kbytes) - old size on rp01 ROOTSIZE 500000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters #MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRROR 1 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH /home/informix/chunk_links/mirror_rootdbs # Path for device containing mirrored root MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS phylogdbs # Location (dbspace) of physical log PHYSFILE 200000 # Physical log file size (Kbytes) was17000 # Logical Log Configuration LOGFILES 110 # Number of logical log files LOGSIZE 70000 # Logical log size (Kbytes) # Diagnostics MSGPATH /home/informix/iif2000/ids_10_FC5/Online.log # System message log file path CONSOLE /dev/console # System console message path # To automatically backup logical logs, edit alarmprogram.sh and set # BACKUPLOGS=Y ALARMPROGRAM /home/informix/iif2000/ids_10_FC5/etc/alarmprogram.sh # Alarm program path TBLSPACE_STATS 1 # Maintain tblspace statistics # System Archive Tape Device TAPEDEV /dev/null # Tape device path TAPEBLK 32 # Tape block size (Kbytes) TAPESIZE 100000000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/rmt/0m # Log tape device path #LTAPEDEV /dev/null LTAPEBLK 32 # Log tape block size (Kbytes) LTAPESIZE 100000000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # Informix Dynamic Server staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a OnLineinstance DBSERVERNAME ol_tmsdb01 # Name of default database server DBSERVERALIASES ol_tmsdb01_shm # List of alternate dbservernames NETTYPE soctcp,2,100,NET # Configure poll thread(s) for nettype NETTYPE ipcshm,1,50,CPU # Configure poll thread(s) for nettype DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed env. RESIDENT 1 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 1 # 0 for single-processor, 1 formulti-processor #NUMCPUVPS 1 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vpsto one #NUMCPUVPS #NOAGE 0 # Process aging #AFF_SPROC 0 # Affinity start processor #AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 1400000 # Maximum number of locks # was 1000000 01/29/04#NUMAIOVPS # Number of IO vps PHYSBUFF 64 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes) CLEANERS 80 # Number of buffer cleaner processes#**SHMBASE 0x0 # Shared memory base address SHMBASE 0x700000000000000 # Shared memory base address SHMVIRTSIZE 3250000 # initial virtual shared memory segment size # was 824 mjb 3/8/04, was 1024000 4/27/04 tl, was 1280000 10/16/04 tl, 3000000 3/25/06 SHMADD 128000 # Size of new shared memory segments (Kbytes) # was 64000 mjb 3/8/04 SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 600 # Check point interval (in sec) ## was 300 2004/1/29 TXTIMEOUT 0x2 # Transaction timeout (in sec) STACKSIZE 128 # Stack size (Kbytes) # Dynamic Logging # DYNAMIC_LOGS: # 2 : server automatically add a new logical log when necessary. (ON) # 1 : notify DBA to add new logical logs when necessary. (ON) # 0 : cannot add logical log on the fly. (OFF) # # When dynamic logging is on, we can have higher values for LTXHWM/LTXEHWM, # because the server can add new logical logs during long transaction rollback. # However, to limit the number of new logical logs being added, LTXHWM/LTXEHWM # can be set to smaller values. # # If dynamic logging is off, LTXHWM/LTXEHWM need to be set to smaller values # to avoid long transaction rollback hanging the server due to lack of logical # log space, i.e. 50/60 or lower. DYNAMIC_LOGS 2 LTXHWM 60 LTXEHWM 70 # System Page Size # BUFFSIZE - OnLine no longer supports this configuration parameter. # To determine the page size used by OnLine on your platform # see the last line of output from the command, 'onstat -b'. # Recovery Variables # OFF_RECVRY_THREA

Thanks for the advice. I had it set to 3500 and still saw the error - i will try 4096 and see what happens. When it was set on HP-UX before we turned it off, we would sometimes see the message and things would still run. But then one time we got a bunch of semaphore errors and it crashed the system. Tom

One other question - your statement "This issue can also be resolved at the OS level too." has me curious. How is it resolved at the OS level? >From what I can tell, AIX does not allow for manual tuning of most of its kernel parameters. We are used to tuning this parameters on HP-UX but are finding out how "un-tunable" AIX is. Tom

<tomcaml@yahoo.com> wrote in message news:1154035185.555169.270160@s13g2000cwa.googlegroups.com... > One other question - your statement "This issue can also be resolved at > the OS level too." has me curious. How is it resolved at the OS level? > >>From what I can tell, AIX does not allow for manual tuning of most of > its kernel parameters. We are used to tuning this parameters on HP-UX > but are finding out how "un-tunable" AIX is. smitty

Neil Truby wrote: > <tomcaml@yahoo.com> wrote in message > news:1154035185.555169.270160@s13g2000cwa.googlegroups.com... > > One other question - your statement "This issue can also be resolved at > > the OS level too." has me curious. How is it resolved at the OS level? > > > >>From what I can tell, AIX does not allow for manual tuning of most of > > its kernel parameters. We are used to tuning this parameters on HP-UX > > but are finding out how "un-tunable" AIX is. > > smitty http://www.smooth1.co.uk/pages/smooth1_my-bulldog_com/ifaq/ifaq06c.htm#6.21

Also in SMITTY -> Devices -> Asynchronous I/O -> Asynchronous I/O (Legacy) ->Change / Show Characteristics of Asynchronous I/O Change / Show Characteristics of Asynchronous I/O Type or select values in entry fields. Press Enter AFTER making all desired changes. [Entry Fields] MINIMUM number of servers [65] # MAXIMUM number of servers per cpu [645] # Maximum number of REQUESTS [4096] # Server PRIORITY [20] # STATE to be configured at system restart available + State of fast path enable + F1=Help F2=Refresh F3=Cancel F4=List Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image tomcaml@yahoo.com wrote: > Hello All, > > I am looking for feedback, comments, etc. > > We are currently on IDS 10.FC4 on HP-UX 11 > - migrating to IDS 10.FC5 on AIX on an LPAR partition on the i595 > > I have gotten this message in the log while performing some loads/alter > tables/indexes, etc > in development phase. > "13:33:20 KAIO: out of OS resources, errno = 11, pid = 282828" > > I decided to turn off KAIO, which is what we have in our current Prod > OLTP system on the HP's. > Here is my ONCONFIG - thanks! > Tom > > -------------------------------------------------------- > #************************************************************************** > # > # INFORMIX SOFTWARE, INC. > # > # Title: onconfig.ol_tmsdb01 > # Description: Informix Dynamic Server Configuration Parameters > # > #************************************************************************** > > # Root Dbspace Configuration > > ROOTNAME rootdbs # Root dbspace name > ROOTPATH /home/informix/chunk_links/rootdbs> # Path for device containing root > dbspace > ROOTOFFSET 0 # Offset of root dbspace into device > (Kbytes)> #ROOTSIZE 100000 # Size of root dbspace (Kbytes) - old > size on rp01 > ROOTSIZE 500000 # Size of root dbspace (Kbytes)> > # Disk Mirroring Configuration Parameters > > #MIRROR 0 # Mirroring flag (Yes = 1, No = 0) > MIRROR 1 # Mirroring flag (Yes = 1, No = 0) > MIRRORPATH /home/informix/chunk_links/mirror_rootdbs > # Path for device containing mirrored > root > MIRROROFFSET 0 # Offset into mirrored device (Kbytes)> > # Physical Log Configuration > > PHYSDBS phylogdbs # Location (dbspace) of physical log > PHYSFILE 200000 # Physical log file size (Kbytes) was> 17000 > > # Logical Log Configuration > > LOGFILES 110 # Number of logical log files > LOGSIZE 70000 # Logical log size (Kbytes)> > # Diagnostics > > MSGPATH /home/informix/iif2000/ids_10_FC5/Online.log > # System message log file path > CONSOLE /dev/console # System console message path> > # To automatically backup logical logs, edit alarmprogram.sh and set > # BACKUPLOGS=Y > > ALARMPROGRAM /home/informix/iif2000/ids_10_FC5/etc/alarmprogram.sh > # Alarm program path > TBLSPACE_STATS 1 # Maintain tblspace statistics> > # System Archive Tape Device > > TAPEDEV /dev/null # Tape device path > TAPEBLK 32 # Tape block size (Kbytes) > TAPESIZE 100000000 # Maximum amount of data to put on tape > (Kbytes)> > # Log Archive Tape Device > > LTAPEDEV /dev/rmt/0m # Log tape device path > #LTAPEDEV /dev/null > LTAPEBLK 32 # Log tape block size (Kbytes) > LTAPESIZE 100000000 # Max amount of data to put on log tape > (Kbytes)> > # Optical > > STAGEBLOB # Informix Dynamic Server staging area > > # System Configuration > > SERVERNUM 0 # Unique id corresponding to a OnLine> instance > DBSERVERNAME ol_tmsdb01 # Name of default database server > DBSERVERALIASES ol_tmsdb01_shm # List of alternate dbservernames > NETTYPE soctcp,2,100,NET # Configure poll thread(s) for nettype > NETTYPE ipcshm,1,50,CPU # Configure poll thread(s) for nettype > DEADLOCK_TIMEOUT 60 # Max time to wait of lock in> distributed env. > RESIDENT 1 # Forced residency flag (Yes = 1, No = > 0) > > MULTIPROCESSOR 1 # 0 for single-processor, 1 for> multi-processor > #NUMCPUVPS 1 # Number of user (cpu) vps > SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps> to one > #NUMCPUVPS > #NOAGE 0 # Process aging > #AFF_SPROC 0 # Affinity start processor > #AFF_NPROCS 0 # Affinity number of processors > > # Shared Memory Parameters > > LOCKS 1400000 # Maximum number of locks # was > 1000000 01/29/04> #NUMAIOVPS # Number of IO vps > PHYSBUFF 64 # Physical log buffer size (Kbytes) > LOGBUFF 32 # Logical log buffer size (Kbytes) > CLEANERS 80 # Number of buffer cleaner processes> #**SHMBASE 0x0 # Shared memory base address > SHMBASE 0x700000000000000 # Shared memory base address > SHMVIRTSIZE 3250000 # initial virtual shared memory segment > size # was 824 mjb 3/8/04, was 1024000 4/27/04 tl, was 1280000 > 10/16/04 tl, 3000000 3/25/06 > SHMADD 128000 # Size of new shared memory segments > (Kbytes) # was 64000 mjb 3/8/04 > SHMTOTAL 0 # Total shared memory (Kbytes). > 0=>unlimited > CKPTINTVL 600 # Check point interval (in sec) ## was > 300 2004/1/29 > TXTIMEOUT 0x2 # Transaction timeout (in sec) > STACKSIZE 128 # Stack size (Kbytes)> > # Dynamic Logging > # DYNAMIC_LOGS: > # 2 : server automatically add a new logical log when necessary. > (ON) > # 1 : notify DBA to add new logical logs when necessary. (ON) > # 0 : cannot add logical log on the fly. (OFF) > # > # When dynamic logging is on, we can have higher values for > LTXHWM/LTXEHWM, > # because the server can add new logical logs during long transaction > rollback. > # However, to limit the number of new logical logs being added, > LTXHWM/LTXEHWM > # can be set to smaller values. > # > # If dynamic logging is off, LTXHWM/LTXEHWM need to be set to smaller > values > # to avoid long transaction rollback hanging the server due to lack of > logical > # log space, i.e. 50/60 or lower. > > DYNAMIC_LOGS 2 > LTXHWM 60 > LTXEHWM 70> > # System Page Size > # BUFFSIZE - OnLine no longer supports this configuration parameter. > # To determ

--- Run under root 'smitty chaio' to change the default value This is one of the few that are tunable on AIX jp david@smooth1.co. uk Sent by: To informix-list-bou informix-list@iiug.org nces@iiug.org cc Subject 07/27/2006 06:32 Re: ONCONFIG and AIX PM Neil Truby wrote: > <tomcaml@yahoo.com> wrote in message > news:1154035185.555169.270160@s13g2000cwa.googlegroups.com... > > One other question - your statement "This issue can also be resolved at > > the OS level too." has me curious. How is it resolved at the OS level? > > > >>From what I can tell, AIX does not allow for manual tuning of most of > > its kernel parameters. We are used to tuning this parameters on HP-UX > > but are finding out how "un-tunable" AIX is. > > smitty http://www.smooth1.co.uk/pages/smooth1_my-bulldog_com/ifaq/ifaq06c.htm#6.21 _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list