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тАО03-31-2006 07:36 AM
тАО03-31-2006 07:36 AM
We suspect that there are memory leakage from some oracle 9.2.x.x client libraries runnning on hpux 11i vi.
Can someone suggest some commands of hpux or tools to identify which libraries are producing the memory leaks ?
Thanks,
Shiv
Solved! Go to Solution.
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тАО03-31-2006 08:44 AM
тАО03-31-2006 08:44 AM
Re: memory leakes from oracle client libraries on hpux 11i
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тАО03-31-2006 02:21 PM
тАО03-31-2006 02:21 PM
SolutionUNIX95=1 ps -e -o vsz,pid,ppid,args | sort -rn | head -20
Just run this on a regular basis to monitor the largest processes. Now memory usage in Unix is complex and the processes may not be growing but shared memory may be growing. ipcs -bmop will monitor this, but it will be difficult to find which process is growing the segment. And be sure your buffer cache is reasonable (no more than 800 to 1500 megs).
Bill Hassell, sysadmin
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тАО03-31-2006 04:54 PM
тАО03-31-2006 04:54 PM
Re: memory leakes from oracle client libraries on hpux 11i
in Unix is complex and the processes may not be growing but shared memory may be growing"
Apreciate help from any Unix Guru of the forum.
Thanks,
Shiv
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тАО03-31-2006 05:06 PM
тАО03-31-2006 05:06 PM
Re: memory leakes from oracle client libraries on hpux 11i
There is shminfo toll that may help you. Also if you monitor shared memory usage with ipcs -m, and you see over a period of time the usage is going up, you need to start at looking which user is using it and associate it with pid and troubleshoot it further.
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тАО03-31-2006 05:51 PM
тАО03-31-2006 05:51 PM
Re: memory leakes from oracle client libraries on hpux 11i
Finding out memory leak is not an easy task, sometimes you may be fooled around by memory. If you are good in debugging, you can find out memory leak with GDB. Otherwise, better log a call with Oracle Support, they might help you.
BTW, Have you checked the latest patches available for Oracle as well as HP-UX ?
-Arun
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тАО04-01-2006 02:47 AM
тАО04-01-2006 02:47 AM
Re: memory leakes from oracle client libraries on hpux 11i
Bill Hassell, sysadmin
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тАО04-01-2006 05:22 AM
тАО04-01-2006 05:22 AM
Re: memory leakes from oracle client libraries on hpux 11i
I find memory leaks by watching a process either with glance or a UNIX95 ps command.
It the amount of memory for a process continues to grow over time, its a suspect.
These problems are sometimes solved with Operating System patches, but more often with patches to the application.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО04-01-2006 03:30 PM
тАО04-01-2006 03:30 PM
Re: memory leakes from oracle client libraries on hpux 11i
A very white good paper,
http://docs.hp.com/en/1218/mem_mgt.html
-Arun
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тАО04-02-2006 06:58 AM
тАО04-02-2006 06:58 AM
Re: memory leakes from oracle client libraries on hpux 11i
Regards,
Shiv