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Cisco Bug: CSCuw26621 - GR 6.1 few QNS VMs CPU grow high due to mongo issue

Last Modified

May 07, 2017

Products (1)

  • Cisco Mobility Services Engine

Known Affected Releases

6.1.0

Description (partial)

In GR environment few of the QNS VMS, java process CPU grow high and java process will not return the CPU

Symptom:
On QNS VMs java process we can observe heap dump created on the /tmp/ directory and CPU usage of java process grow high and CPU not return back.

Conditions:
When there is mongodb replica-set memebr fail over and it lead to OOM we will observe error messages in logs.

2015-08-10 00:37:16,488 [pool-17-thread-1] ERROR c.b.u.zmq.endpoint.EndpointRegistry - Exception processing heartbeats
   java.lang.OutOfMemoryError: GC overhead limit exceeded
   2015-08-10 00:37:19,134 [pool-17-thread-1] ERROR c.b.u.zmq.endpoint.EndpointRegistry - Exception processing heartbeats
   java.lang.OutOfMemoryError: Java heap space
   2015-08-10 00:37:19,139 [pool-17-thread-1] WARN  com.mongodb - emptying DBPortPool to sessionmgr07-NK/172.31.18.49:27721 b/c of error
   java.lang.IllegalArgumentException: response too long: 1745879088
               at com.mongodb.Response.<init>(Response.java:47) ~[org.mongodb.mongo-java-driver_2.11.0.RELEASE.jar:na]
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