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Cisco Bug: CSCuq61398 - Memory Leak caused by SIP endpoint Registration

Last Modified

Aug 17, 2020

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

10.0(1.10000.24) 10.5(1.10000.7) 10.5(1.11006.1) 9.0(1.10000.37) 9.1(1.10000.11)

Description (partial)

While fail-over is occurring for a large amount (2000-10,000) SIP endpoints from their primary call processing node to secondary (ccm upgrade\service stop, or a network outage) it is noted that virtual memory increased due to registration throttling and was not released.  
Other symptoms related to the memory leak are seen during active fail-over, or after a network outage.  They are high cpu, slow device registration, registered devices on fail-over unable to place/receive calls and once virtual memory is exhausted the CCM service may core dump

Symptom:Memory Leak caused by Registration Throttling and gSipNewRegPendingNum.  This may occur occur during SIP endpoint fail-over to the secondary or tertiary call processing node. It can also occur during a network outage, or any other event that can cause a large number of endpoints to re-register at once.

Conditions:While fail-over is occurring for a large amount (2000-10,000) SIP endpoints from their primary call processing node to secondary (ccm upgrade\service stop, or network outage) it is noted that virtual memory increased due to registration throttling and was not released.  
Other symptoms related to the memory leak are seen during active fail-over.  They are high cpu, slow device registration, registered devices on fail-over unable to place/receive calls and once virtual memory is exhausted the CCM service may core dump
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