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Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2019/04/24 10:29:47 UTC
[GitHub] [incubator-druid] Hailei opened a new pull request #7540: call
threadlocal.remove explicitly to avoid CPU usage spikes
Hailei opened a new pull request #7540: call threadlocal.remove explicitly to avoid CPU usage spikes
URL: https://github.com/apache/incubator-druid/pull/7540
In ConcurrentGrouper，using threadlocal to a mode where each thread gets its own buffer and its own spill files on disk,but don't call threadlocal.remove explicitly on close() method，this will result in CPU usage spikes。we used G1GC when we encountered this problem. the same issue https://issues.apache.org/jira/browse/HBASE-16616
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