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https://issues.apache.org/jira/browse/CASSANDRA-12489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeremy Hanna updated CASSANDRA-12489:
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Complexity: Low Hanging Fruit
> consecutive repairs of same range always finds 'out of sync' in sane cluster
> ----------------------------------------------------------------------------
>
> Key: CASSANDRA-12489
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12489
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/Streaming and Messaging
> Reporter: Benjamin Roth
> Assignee: Benjamin Roth
> Priority: Normal
> Labels: lhf
> Attachments: trace_3_10.1.log.gz, trace_3_10.2.log.gz,
> trace_3_10.3.log.gz, trace_3_10.4.log.gz, trace_3_9.1.log.gz,
> trace_3_9.2.log.gz
>
>
> No matter how often or when I run the same subrange repair, it ALWAYS tells
> me that some ranges are our of sync. Tested in 3.9 + 3.10 (git trunk of
> 2016-08-17). The cluster is sane. All nodes are up, cluster is not overloaded.
> I guess this is not a desired behaviour. I'd expect that a repair does what
> it says and a consecutive repair shouldn't report "out of syncs" any more if
> the cluster is sane.
> Especially for tables with MVs that puts a lot of pressure during repair as
> ranges are repaired over and over again.
> See traces of different runs attached.
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