OpenPegasus CIM Server (cimserver) memory leak troubleshooting tips

OpenPegasus CIM Server (cimserver) memory leak troubleshooting tips -

There is no secret that there are memory leaks in our CIM Server and it seems that not only XenServer has such problems. Recetly I spent some time helping my colleague troubleshooting problem like this and decided to share following the procedures

Procedure 1 :. Using database files

1. Set destination and the core file pattern:

    sysctl -w kernel.core_pattern = "... / var / tmp / core% e% h% p "-q kernel sysctl .core_pattern 

   above the set file core sales pitch commands is as follows:

    /var/tmp/core. [.  

2. Change /etc/init.d/openpegasus file and add ulimit -c unlimited line before cimserver begins.
   Or apply patch below on /etc/init.d/openpegasus

    *** / etc /init.d/openpegasus .00 04/05/2013 14: 39: 48.000000000 0530 --- /etc/init.d/openpegasus 05/04/2013 14: 31: 42.000000000 0530 ******* **** **** start () {*** **** 11.16 --- 11.17 ---- stop () {echo -n "stop OpenPegasus ..." ulimit -c unlimited + / opt / OpenPegasus / bin / cimserver -s echo "done." } 

   To apply this patch:

   • save a text file in XenServer dom0, namely: /root/cim.patch
   • run Patch
3. cimserver Restart

    Service OpenPegasus restart 

4. When cimserver begins consume abnormal amount of memory kill cimserver with SIGABRT (6) signals.

    -SIGABRT kill $ (pgrep cimserver) 

5. Check new file / var / tmp / core.

Procedure 2 :. Using part of valgrind

1. Stop cimserver watchdog

    touch / opt / xs-cem-cmpi / watchdog-off 

2. Set cimserver running in the foreground:

    / opt / OpenPegasus / bin / daemon cimconfig -s = false -p 

3. Start cimserver using valgrind

    valgrind --leak-check = - -log complete file = / root / cimserver.valgrind% p.Log --trace-children = yes / opt / OpenPegasus / bin / cimserver 

4. When problem occurs stop valgrind and collect log file / var / tmp
   Follow remaining steps back cimconfig original configuration.
5. cimserver Set to run in the background:

    / opt / OpenPegasus / bin / cimconfig -s daemon = true -p 

6. Enable monitoring:

    rm - vF / opt / xs-cem-IPMC / watchdog-off 

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