Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/2352
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GitHub user kawamuray opened a pull request:
https://github.com/apache/kafka/pull/2352
KAFKA-4614 Forcefully unmap mmap of OffsetIndex to prevent long GC pause
Issue: https://issues.apache.org/jira/browse/KAFKA-4614
Fixes the problem that the broker threads suffered by long
