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https://issues.apache.org/jira/browse/HBASE-3862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Heitmann updated HBASE-3862:
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Status: Patch Available (was: Open)
This patch includes both a fix for the bug and unit tests. The fix is good, but
the unit tests are a little dodgy. I had to jump through some hacky hoops to
trigger the race, and being a race it doesn't happen all the time. The tests
may be a maintenance problem in the future, and therefore you may not want to
commit them.
> Tace conditions in aggregate calculation
> ----------------------------------------
>
> Key: HBASE-3862
> URL: https://issues.apache.org/jira/browse/HBASE-3862
> Project: HBase
> Issue Type: Bug
> Components: coprocessors
> Affects Versions: 0.92.0
> Reporter: John Heitmann
>
> The AggregationClient requests aggregations from multiple region servers in
> parallel. The calculations in the reducer callbacks of the AggregationClient
> are not thread safe, and therefore could return an incorrect result due to
> simultaneous/interleaved execution.
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