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https://issues.apache.org/jira/browse/HBASE-19320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16290672#comment-16290672
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Anoop Sam John commented on HBASE-19320:
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Patch LGTM.
To clarify- '-Djdk.nio.maxCachedBufferSize' this option sets the max possible
DBB size which the NIO layers can pool in within this JVM right? We know the
pooling is ThreadLocal way. So this size is across all ThreadLocals correct?
Just confirming once more.
> document the mysterious direct memory leak in hbase
> ----------------------------------------------------
>
> Key: HBASE-19320
> URL: https://issues.apache.org/jira/browse/HBASE-19320
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0, 1.2.6
> Reporter: huaxiang sun
> Assignee: huaxiang sun
> Attachments: HBASE-19320-master-v001.patch, Screen Shot 2017-11-21 at
> 4.43.36 PM.png, Screen Shot 2017-11-21 at 4.44.22 PM.png
>
>
> Recently we run into a direct memory leak case, which takes some time to
> trace and debug. Internally discussed with our [[email protected]], we
> thought we had some findings and want to share with the community.
> Basically, it is the issue described in
> http://www.evanjones.ca/java-bytebuffer-leak.html and it happened to one of
> our hbase clusters.
> Create the jira first and will fill in more details later.
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