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https://issues.apache.org/jira/browse/HBASE-19505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16289640#comment-16289640
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Chia-Ping Tsai commented on HBASE-19505:
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If HM carry only system table or nothing, disabling the pool is ok I think. If
HM can carry any regions (hbase.balancer.tablesOnMaster == true), the pool
setting for HM should be same with RS.
> Disable ByteBufferPool by default at HM
> ---------------------------------------
>
> Key: HBASE-19505
> URL: https://issues.apache.org/jira/browse/HBASE-19505
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Fix For: 2.0.0-beta-1
>
> Attachments: HBASE-19505.patch
>
>
> The main usage of the pool is while accepting bigger sized requests ie.
> Mutation requests. HM do not have any regions by default. So we can make
> this pool OFF in HM side. Still add a config to turn this ON.
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