Blake Eggleston created CASSANDRA-21422:
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Summary: CEP-58 - Failover Process: Disable / Reenable
Key: CASSANDRA-21422
URL: https://issues.apache.org/jira/browse/CASSANDRA-21422
Project: Apache Cassandra
Issue Type: Improvement
Reporter: Blake Eggleston
The failover process currently supports transferring the primary role between
datacenters, but does not support disabling / reenabling datacenters cleanly.
The disabled datacenter will contain uncomplete writes that don’t exist in
other datacenters, and these need to be removed before re-enabling the
datacenter. Additionally, paxos state needs to be cleared and we need to
repopulate the disabled datacenter with data that it’s missed. Including some
that other replicas may have thought had been replicated to it (but was removed
during the cleanup process)
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