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https://issues.apache.org/jira/browse/CASSANDRA-17810?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh McKenzie updated CASSANDRA-17810:
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Bug Category: Parent values: Degradation(12984)Level 1 values: Other
Exception(12998)
Complexity: Normal
Discovered By: User Report
Severity: Normal
Status: Open (was: Triage Needed)
> 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
> Priority: Normal
>
> 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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