topic rds hugging CPU in Operating System - HP-UX

rds hugging CPU

Isralyn Manalac_1 — Mon, 09 Feb 2004 20:43:03 GMT

Hi,

rds process of Dataprotector is currently using almost 60%wcpu. Is this normal? Would you know of any patch for this, in case this is a known error? Please advise. Thanks.

Ira

Re: rds hugging CPU

T G Manikandan — Mon, 09 Feb 2004 22:30:56 GMT

There are patches which can solve the problem.
Meanwhile what version of DataProtector you are running?

Re: rds hugging CPU

Isralyn Manalac_1 — Mon, 09 Feb 2004 22:39:01 GMT

My apologies for not stating the DP version. We're running DP5.1. Thanks.

Re: rds hugging CPU

T G Manikandan — Mon, 09 Feb 2004 22:55:08 GMT

Sorry for not reminding you to revert with the OS version.

ALso to check are you using top to find out hte process usage.

Re: rds hugging CPU

T G Manikandan — Mon, 09 Feb 2004 22:58:03 GMT

Juat check this doc

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000072157109

Can you also check the usage of that process using GLANCE

Re: rds hugging CPU

Rajeev Shukla — Mon, 09 Feb 2004 23:27:26 GMT

Hi,

Its might be because of "hungry memory resource" try increasing MAXDSIZE kernel parameter, that should solve the problem

Cheers
Rajeev

Re: rds hugging CPU

Clemens van Everdingen — Tue, 10 Feb 2004 02:06:20 GMT

Ira,

I suggest you read this info !
I don't know how you monitor the rds process, but this might be the issue.

http://openview.hp.com/sso/ecare/getsupportdoc?docid=OV-EN012413

Clemens

Re: rds hugging CPU

Leif Halvarsson_2 — Tue, 10 Feb 2004 03:02:40 GMT

Hi,

It is not normal if rds is running at 60% all the time. But, when backing up data rds can reach a high value temporary (when writing data to the DP database). Also when purging, browsing backup objects or searching rds is very active.

Re: rds hugging CPU

Kurt Beyers. — Wed, 11 Feb 2004 02:07:14 GMT

Ira,

This is due to a bug in the HPUX command. There you see indeed that the RDS daemon is consuming the CPU.

However if you would check the cpu usage with a (trial version) of GlancePlus, you'll see that the rds daemon has a normal, low CPU usage. Or check it with sar, you'll see that your CPU isn't used that much as the 'top' command is telling you.

best regards,
Kurt