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https://issues.apache.org/jira/browse/HBASE-23067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16937455#comment-16937455
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chenxu commented on HBASE-23067:
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The total cache size is about 80G, hfile block size is 32KB, so 2500k
BucketEntry should be enough, but the actual use exceeds 6000k [~anoop.hbase]
> Use Netty’s Recycler to manage RefCnt and BucketEntry creation
> --------------------------------------------------------------
>
> Key: HBASE-23067
> URL: https://issues.apache.org/jira/browse/HBASE-23067
> Project: HBase
> Issue Type: Improvement
> Reporter: chenxu
> Assignee: chenxu
> Priority: Major
> Attachments: heap_dump.png
>
>
> After dump the heap, found that the number of RefCnt & BucketEntry object
> instances is so large now, How about use Netty’s Recycler to manage them,
> this may improve the YGC.
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