I am implementing Topology & RCA functionality in CAUIM. During an outage I found alarms have been suppress but fault correlation engine is unable to detect cause of outage
As a result of an outage , total 71 alarms generated in clear & information severity. Expectation was to have at least 1 critical alarm, which should point to actual fault but it was not present. While doing further troubleshooting, I found that fault correlation engine is not being able to identify the cause of outage so suspecting this could be the reason for not having any critical alarm.
I suspect that fault correlation engine is not working fine. while checking the logs of Fault_correlation_engine finding below errors:
06212017 05:08:05,826 [ analyzer1] WARN a.network.NetworkFCA - Unable to set node state pds = FCPDS [subject= interface_poller, nimId = FP62802341-71781, alarm nimid = null, prid = topology_agent, source = null, level = null, origin = null, robot = null, message = null]