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https://issues.apache.org/jira/browse/LUCENE-3090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Willnauer updated LUCENE-3090:
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Attachment: LUCENE-3090.patch
here is a patch. I fixed DWFlushControl to block flushes while a fullflush is
happening and make them available once the fullflush is done. I also ensure
that incoming threads help out flushing if there are DWPT about to flush but
not taken yet before indexing their document. All tests pass (I run them lots
of times :)
> DWFlushControl does not take active DWPT out of the loop on fullFlush
> ---------------------------------------------------------------------
>
> Key: LUCENE-3090
> URL: https://issues.apache.org/jira/browse/LUCENE-3090
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 4.0
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Priority: Critical
> Fix For: 4.0
>
> Attachments: LUCENE-3090.patch
>
>
> We have seen several OOM on TestNRTThreads and all of them are caused by
> DWFlushControl missing DWPT that are set as flushPending but can't full due
> to a full flush going on. Yet that means that those DWPT are filling up in
> the background while they should actually be checked out and blocked until
> the full flush finishes. Even further we currently stall on the
> maxNumThreadStates while we should stall on the num of active thread states.
> I will attach a patch tomorrow.
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