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Cisco Bug: CSCuk47925 - Need a strategy for dealing with replication failures

Last Modified

Jan 23, 2016

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

2.0.0.BASE 3.2.0.BASE

Description (partial)


This is a problem that has not occured in practice.  It is an anticipated issue that while
possible is unlikely to occur.  Should failures occur while SysDB is performing it's data
replication such that the retries are exhasted, the replication will give up an not attempt
to replicate the data that it was unable to replicate.  However if the standby node goes
down (causing replication problems) it will be resynchronized when it reboots, sos in practice
the problem of replication failures occuring while the standby card remains operational has
not been seen.


Active and standby RP cards operating normally, new configuration is committed and while
the active RP is attempting to replicate the new configuration data to the standby communications
failures occur and are sustained long enough that the replication retries are exhasted and the
active node gives up attempting to replicate the new configuration to the standby. Now should
a failover occur, the standby will not have the current configuration.
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