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Cisco Bug: CSCvv04736 - Flood of PUBLISH from CUCM leads to PE memory peak and crash

Last Modified

Oct 16, 2020

Products (1)

  • Cisco Unified Communications Manager IM & Presence Service

Known Affected Releases


Description (partial)

1) Presence Engine functionality stops working.
2) Request arriving at Presence Engine is only queued, and not processed.
3) Presence Engine logs are full of trace line -
         "ERROR event queue is queuing too many messages, will not queue more"
4) Perfmon shows VmSize of Process PE , steadily rising till max, and then plateau and eventually PE crash

This happens when IMP is overwhelmed with lots of SIP PUBLISH flooding in from CUCM.
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Bug Details Include

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  • Status
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