RE: seeing memory leak in cimprovagt process

Hi All,

Thanks for all of your responses.
If we simply start and stop the server, then also we can see memory leak from Valgrind report. To separate out the memory leak area, we created a single application with our provider code. And by executing the application with Valgrind, it's not reporting any memory leak. We put our standalone application  overnight and there is no significant increase in memory usage.

But when we run cimserver overnight, not doing any operation on it, we can see increase in memory.
So, by summarizing this, can we suspect some memory leak in the serverside?

Please give your input on this asap.

Thanks & Regards,
Pialy



From: Karl Schopmeyer [mailto:[email protected]]
Sent: Wednesday, August 08, 2012 1:54 AM
To: Pialy Ghosh (WT01 - Manufacturing & Hi Tech); [email protected]
Cc: Anirban Bhattacharyya (WT01 - Manufacturing & Hi Tech)
Subject: RE: seeing memory leak in cimprovagt process

Note that there are still some memory issues in Pegasus shutdown so that this may be some of what you are seeing.  To separate these out, simply start and stop the server. with valgrind running. That will give you a clue what things valgrind reports with without your provider being called.

Second, you might be better to test the provider in out-of-process mode where you are running valgrind only on the particular provider and OOP agent to determine if the error is from the provider or agent vs. the server.
If you have issues setting this up, there is an example of a script to run valgrind on just cimprovagt by replacing cimprovagt executable with a script like the following


#!/bin/sh
## Original Author: Tim Potter
# move cimprovagt to cimprovagt.real
# move this file to cimprovagt
#
# mv /usr/sbin/cimprovagt /usr/sbin/cimprovagt.real
# cp cimprovagt.wrapper /usr/sbin/cimprovagt
## By default the script doesn't call valgrind - enable it by
## creating a semaphore file of the form /tmp/$MODULE.valgrind where module
## is the module name in the output of "cimprovider -l".
## Or create a file /tmp/LogAll.valgrind which valgrinds all providers.
module=$5
VALGRIND_ARGS="--leak-check=yes --trace-children=yes --log-file=/tmp/$module.valgrind"
if [ -e /tmp/$module.valgrind -o -e /tmp/LogAll.valgrind ]; then
        exec /usr/bin/valgrind $VALGRIND_ARGS \
      /usr/sbin/cimprovagt.real "$@"
else
        exec /usr/sbin/cimprovagt.real "$@"
fi

Karl

Thanks for your message at 06:14 AM 8/7/2012. Your message was:

Hi All,

Thanks for all of your response.
We have configured cimserver ?forceProviderProcesses=false?, so that all the provider processes will be in the same context.
Now, we run ?Valgrind? for cimserver process. And then, we have generated one event for our provider and stop the cimserver process after that.

Then from ?Valgrind? memory leak report, we can see many definitely lost memory issue are coming from Pegasus. Please check the attached file for details of it. Is this a known issue?

Please give your valuable input. Thanks in advance.

Regards,
Pialy



From: Devchandra Leishangthem [ mailto:[email protected]]
Sent: Friday, August 03, 2012 9:52 PM
To: Pialy Ghosh (WT01 - Manufacturing & Hi Tech)
Cc: Anirban Bhattacharyya (WT01 - Product Engineering Services); [email protected]
Subject: Re: seeing memory leak in cimprovagt process

Is the leak seen in a particular cimprovagt or for all the provider processes?
If It is seen in some particular agent processes, Then most probably it is leak in the corresponding provider.
See if running under a memory debugger helps for that particular agt processes.

Warm Regards
D>L> Meetei
9538270270
[IBM]
IBM India Software Lab, STG
6th Floor, A0202,
EGL -D,Bangalore, India



From:        <[email protected]>
To:        <[email protected]>,
Cc:        <[email protected]>
Date:        08/03/2012 05:37 PM
Subject:        seeing memory leak in cimprovagt process




Hi,

We are seeing some memory leak in cimprovagt process. We are running open Pegasus, cimserver in a windows 64 bit OS. Our provider is running on cimserver.
After few days long run we can see, memory usages is increased. I have searched in internet and find out same kind of problem is mentioned by others also. So, just wanted to know, is this a known issue in Pegasus? If not, then we will come to know that, issue is coming from our provider.

Your valuable input will be very helpful for us to analyze the issue.

Thanks & Regards,
Pialy



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Karl Schopmeyer                   Inova Development Inc.
305 Spring Creek Village, Suite 475 -  Dallas TX, 75248 USA
EMAIL: [email protected]       FAX: 1-972-239-0326
Phone 1-972-814-5581
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