SOAM Server Reporting Error For Comcol Process cmsnmpsa : Consuming Excessive Memory

Asset ID:	1-72-2393856.1
Update Date:	2018-05-07
Keywords:

Solution Type Problem Resolution Sure

Solution 2393856.1 : SOAM Server Reporting Error For Comcol Process cmsnmpsa : Consuming Excessive Memory

Applies to:

Oracle Communications Diameter Signaling Router (DSR) - Version DSR 7.0.1 and later
Information in this document applies to any platform.

Symptoms

Comcol process cmsnmpsa found consuming excessive memory for SOAM servers. System also found reporting the alrm 31215 "Process resources exceeded".

[xxxxxxxx@SO-xxx-a snmp]$ ps axo %mem,pid,cmd,ruser | sort -nr | head -10
55.6 1197 cmsnmpsa -R x.x.x.x.x root

The alarm 31215 also appears, the severity keeps increasing from minor to critical (due to more memory consumed by comcol process) if not attended for few hours.

NETWORK_ELEMENT: SO_XXX_a
SERVER:SO_YYY_a
SEQ_NUM: xxxx
EVENT_NUMBER: 31215
SEVERITY: CRITICAL
PRODUCT: Platform
PROCESS: ProcWatch
TYPE: SW
INSTANCE: System.RAM_UtilPct, comcol
NAME: Process Resources Exceeded
DESCR: A process is consuming excessive system resources
ERR_INFO:
GN_ABVTHRESH/WRN Metric System.RAM_UtilPct above critical threshold
^^ Current: 96.57 Onset: 95 Abatement: 95
^^ [8039:SysMetricData.cxx:755]

This issue keeps appearing quite often in active SOAM server.

Changes

No changes done in system configuration

Cause

Memory leak was observed when there are alarms present and SNMP walk is done on the COMCOL.

Bug 27699787

Comcol table "comcolAlarmTable".

Solution

The comcol bug is going to be fixed in comcol versoin 7.5. System should be reach that comcol version to clear of this issue.
The available work around is to restart the cmsnmpsa process, it will release the memory and clear the alarm 31215.

References

<BUG:27699787> - SR:3-16872700064 MEMORY LEAK OBSERVED FOR CMSNMPA PROCESS DURING SNMPWALK

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