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Cisco Bug: CSCul53613 - No Failover triggered in partial failover state.

Last Modified

Sep 19, 2016

Products (1)

  • Cisco Unified Attendant Consoles

Known Affected Releases

10.0(1) 10.5 9.0 9.1

Description (partial)

Symptom:
Currently for fail-over to trigger in a CUAC cluster, we require all 4 services Attendant Server Service, LDAP, CUPS and the BLF plugin to be down along with telephony so as to render a successful failover from Primary to Seconday for DDI calls.  For a stable architecture, this failover mechanism depends on too many preconditions to be met so as to declare the communication between the CUAC publisher/Primary and CUCM Publisher/Primary CTI Mgr.  If the system is in a partial degradation, such as only Attendant Server service is down, and rest of the services are up, fail-over does not trigger.  


There should be a fewer dependent services to trigger failover from Primary to Secondary, like in other appliance models, such as CUCM where a single CM service triggers fail-over.  Since a customer deployment can always run into a partial degraded state of the CUAC server, this requirement only makes the fail-over architecture more dependable.

Conditions:
CUAC 9 & CUAC 10
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