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https://issues.apache.org/jira/browse/HBASE-19452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16287099#comment-16287099
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ramkrishna.s.vasudevan commented on HBASE-19452:
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bq.# export HBASE_OFFHEAPSIZE=1G
Though the comment above this states that we need to configure some value
considering all the other offheap configs, still if some one starts the server
it will fail na because he may have the default heap and 40% of it will be
taken? I think we could atleast uncomment the 1G and allow that 1G offheap
size?(because default heap size is 1G?)
I know this is tricky and probably that is the reason other projects that have
offheap related features just document it and does not enable it by default.
> 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, HBASE-19452_V2.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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