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тАО11-11-2004 09:39 AM
тАО11-11-2004 09:39 AM
Problem with kaio at running informix 7.3 in HP-UX 11i
At running oninit of informix 7.3 report of following error:
16:36:02 Informix Dynamic Server Version 7.30.UC6
16:36:02 Who: Session(0, @, 0, 0)
Thread(13, kaio, 0, 8)
File: kaio.c Line: 2048
16:36:02 stack trace for pid 8181 written to /tmp/af.de952
16:36:03 See Also: /tmp/af.de952, shmem.de952.0
16:36:03 See Also: /tmp/af.ee952, shmem.ee952.0
16:36:03 Error writing '/tmp/shmem.ee952.0' errno = 28
16:36:03 kaio.c, line 2048, thread 14, proc id 8174, kaiothread() ERROR.
16:36:03 PANIC: Attempting to bring system down
16:36:02 Informix Dynamic Server Version 7.30.UC6
16:36:02 Who: Session(0, @, 0, 0)
Thread(13, kaio, 0, 8)
File: kaio.c Line: 2048
16:36:02 stack trace for pid 8181 written to /tmp/af.de952
16:36:03 See Also: /tmp/af.de952, shmem.de952.0
16:36:03 See Also: /tmp/af.ee952, shmem.ee952.0
16:36:03 Error writing '/tmp/shmem.ee952.0' errno = 28
16:36:03 kaio.c, line 2048, thread 14, proc id 8174, kaiothread() ERROR.
16:36:03 PANIC: Attempting to bring system down
2 REPLIES 2
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тАО11-11-2004 10:15 AM
тАО11-11-2004 10:15 AM
Re: Problem with kaio at running informix 7.3 in HP-UX 11i
The first thing you need to do is increase the space on /tmp because errno 28 is ENOSPC -- filesystem full. Change Informix's temp directory or increase the size of tmp. This won't fix your problem but it will enable a meaningful stack trace for debugging.
If it ain't broke, I can fix that.
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тАО11-11-2004 08:04 PM
тАО11-11-2004 08:04 PM
Re: Problem with kaio at running informix 7.3 in HP-UX 11i
Firstly you need to upgrade to Informix DS 7.31. There may be some KAIO bugs left in 7.30 and that is my bet for the cause of this problem.
Secondly as ACS says, change the informix environment variable DBSPACETEMP to be something other than /tmp or make /tmp big enough to hold your instance shared memory. Filling up /tmp is never a good idea.
Lastly have you tuned the value of
IFMX_HPKAIO_NUM_REQ? The default is 1000, but I have tuned it up to 2000 or 3000 before. Your problem may be caused by having this set too low.
Another possible cause is too low a value for NFILE in the kernel. Maybe you should also check your semaphore tunables too.
Make sure you are up-to-date on o/s patches and check the syslog.
Secondly as ACS says, change the informix environment variable DBSPACETEMP to be something other than /tmp or make /tmp big enough to hold your instance shared memory. Filling up /tmp is never a good idea.
Lastly have you tuned the value of
IFMX_HPKAIO_NUM_REQ? The default is 1000, but I have tuned it up to 2000 or 3000 before. Your problem may be caused by having this set too low.
Another possible cause is too low a value for NFILE in the kernel. Maybe you should also check your semaphore tunables too.
Make sure you are up-to-date on o/s patches and check the syslog.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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