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https://issues.apache.org/jira/browse/HBASE-17204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16286605#comment-16286605
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stack commented on HBASE-17204:
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L1 will remain [~zyork]. It will have indices and blooms. Data blocks will be
out in L2. In here we are talking about what default will be in 2.0.
If it don't suit you sir, you can set config back to how it was.
Any other concerns here mighty Zach?
> Make Off heap Bucket Cache default ON
> -------------------------------------
>
> Key: HBASE-17204
> URL: https://issues.apache.org/jira/browse/HBASE-17204
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Priority: Blocker
> Fix For: 2.0.0-beta-1
>
>
> L2 cache can be used for data blocks. By default it is off now. After
> HBASE-11425 work, L2 off heap cache can equally perform with L1 on heap
> cache. On heavy loaded workload, this can even out perform L1 cache. Pls see
> recently published report by Alibaba. Also this work was backported by
> Rocketfuel and similar perf improvement report from them too.
> Let us turn L2 off heap cache ON. As it is off heap, we can have much larger
> sized L2 BC. What should be the default size?
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