Josh McKenzie created CASSANDRA-17810:
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Summary: Revise timeout handling on queries triggering timeout
introduced by CASSANDRA-7392
Key: CASSANDRA-17810
URL: https://issues.apache.org/jira/browse/CASSANDRA-17810
Project: Cassandra
Issue Type: Bug
Components: Messaging/Internode
Reporter: Josh McKenzie
Assignee: Josh McKenzie
In situations where a replica times out with the code introduced in
CASSANDRA-7392, they drop the timed-out query on the floor without notifying
the coordinator; this doesn't become apparent coordinator-side until we go to
serialize the response. While the results of this (i.e. missed data) should
mostly be fixed by short read protection on repeat requests, the coordinator
can in some cases throw an exception like {{IllegalStateException:
UnfilteredRowIterator for keyspace.table has an open RT bound as its last
item}} which is decidedly unfriendly.
We should introduce a specific exception to allow replicas to notify a
coordinator something has timed out and been dropped on the floor so the
coordinator can appropriately handle that scenario and abort the query at that
time.
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