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nbproxy shows high CPU usage

Sandeep_Chandur
Level 2
Hi,

I have NetBackup 6.0MP2 installed on the master server which also happens to be the media server (an RHEL AS 4 server). The client is a Red Hat Enterprise Linux system, and the requirement is to backup a directory containing several sub-directories and files within them. I have created a policy to this effect.

When I choose a manual backup of this policy, and have a test set of around 10GB of files under that directory on the client, the nbproxy process takes a long time (as much as 4 hours) to run, and no activity is shown in the Activity Monitor during this time. After this, the actual backup starts and I am able to see the little green running men in the Activity Monitor.

While the time taken to backup is nothing to write home about, I am curious why nbproxy shows a 98% CPU usage (from the top command). I turned on the nbproxy legacy log, and see this message repeat continuously:

14:54:29.442 <2> db_OpenImgWithLockByPath: trying to lock : db_Imglock(83463c8) offset 0 in /usr/openv/netbackup/db/images/client.example.com/1146000000/tmp/ATP-gp-media_1146009145_FULL
14:54:29.442 <2> db_OpenImgWithLockByPath: locked : db_Imglock(83463c8): offset 0 in /usr/openv/netbackup/db/images/client.example.com/1146000000/tmp/ATP-gp-media_1146009145_FULL

On the Veritas support site, I found this document:
http://seer.support.veritas.com/docs/280757.htm

which speaks of a deadlock in the bpdbm. Is there any relation between this and nbproxy, causing it to show high CPU usage?

Thanks in advance,
Sandeep
--
http://sandeep.weblogs.us/
3 REPLIES 3

zippy
Level 6
San,


It looks like a flaw in this binary -->>>nbproxy


These may not pertain to you but it may lead you in the right direction.

http://seer.support.veritas.com/docs/281299.htm
http://seer.support.veritas.com/docs/281103.htm

dump 6.x and go back to 5.x if you have a chance! ;)

JD

Sandeep_Chandur
Level 2
JD,

Thanks for the reply. Unfortunately, we can't go back to 5.x :D

I have already tried removing the *.ior files, but to no avail. I recently upgraded 6.0 to MP2, thinking it would solve the problem but that didn't help as well.

Cheers,
Sandeep
--
http://sandeep.weblogs.us/

zippy
Level 6
Sandeep,

I would call in a ticket, they have a better database to look at then we do.

JD