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https://issues.apache.org/jira/browse/SOLR-11771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cao Manh Dat resolved SOLR-11771.
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Resolution: Fixed
Assignee: Cao Manh Dat
Fix Version/s: 7.3
master (8.0)
> Overseer can never process some last messages
> ---------------------------------------------
>
> Key: SOLR-11771
> URL: https://issues.apache.org/jira/browse/SOLR-11771
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Cao Manh Dat
> Assignee: Cao Manh Dat
> Fix For: master (8.0), 7.3
>
>
> I met this problem when some tests get failed because timeout on creating a
> new collection. The case here is
> 1. Overseer call DQ.peekElements with LONG.MAX_VALUE timeout.
> 2. DQ fetch children from ZK but it is empty.
> 3. At the same time with 2, a set LEADER message is enqueued,
> {{changed.signalAll()}} already called.
> 4. The call {{changed.awaitNanos(waitNanos)}} is never end because no new
> messages get enqueued after this point.
> The fix here is trivial, the call peekElements should have a timeout of 2
> seconds, that will be appropriate in most cases.
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