Josh McKenzie created CASSANDRA-17830:
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Summary: Read Unavailables due to GossipStage backlog with high
number of pending tasks
Key: CASSANDRA-17830
URL: https://issues.apache.org/jira/browse/CASSANDRA-17830
Project: Cassandra
Issue Type: Improvement
Components: Cluster/Gossip
Reporter: Josh McKenzie
Assignee: Josh McKenzie
In CASSANDRA-16759, like we changed from iterating over liveMembers +
unreachableMembers to all keys in endpointStateMap
[here|https://github.com/apache/cassandra/commit/2fba5c80ce7bf71d04c62043ffa1088b9e832d83#diff-99267a2170b04fd7dd24d6c6bf2ba1fc26d6dc896cd74f8c5bd56c476e2540e4R208].
We can have an endpoint in quarantine (in justRemovedEndpoints) which has no
release version information. In this case we don't memoize the value and
instead recalculate the min version for every endpoint for every incoming
gossip message... which can be bad.
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