Preview Tool

Cisco Bug: CSCta33316 - Fix for CSCsr66922 in SR2 causes Engine deadlock

Last Modified

Feb 04, 2017

Products (1)

  • Cisco Unified Contact Center Express

Known Affected Releases


Description (partial)


In an HA environment the primary system will fail and agents will be dropped with all calls failing.  The system will not fail over to the secondary system on its own.  Restarting the primary node will allow the failover to occur.

This issue in a single server environment will likely cause the same failure but it has not been observed.  The cause of the issue is not dependant on an HA environment so this issue likely happens in either environment.


Customer installs SR2 for UCCX 7.0(1).  SR2 contains a fix for CSCsr66922 (Cleanup thread for stuck contacts not cleaning stuck contacts) and the fix for this causes the deadlock.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.