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https://issues.apache.org/jira/browse/HBASE-19452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anoop Sam John updated HBASE-19452:
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Attachment: HBASE-19452.patch
It would be better that user always configure exact off heap BC size. But we
need a default and going with hard coded value is problematic. So am going with
a % value of the xmx size which is taken as the BC off heap size. Going with
same 40% which was/is the default BlockCache %
> Turn ON off heap Bucket Cache by default
> ----------------------------------------
>
> Key: HBASE-19452
> URL: https://issues.apache.org/jira/browse/HBASE-19452
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Fix For: 2.0.0-beta-1
>
> Attachments: HBASE-19452.patch
>
>
> BC's hbase.bucketcache.ioengine by default is empty now. Means now BC.
> Make this default to be 'offheap'. And the default off heap size for the BC
> also to be provided. This can be 8 GB?
> Also we should provide a new option 'none' for this
> hbase.bucketcache.ioengine now for users who dont need BC at all.
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