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https://issues.apache.org/jira/browse/HBASE-19451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16283154#comment-16283154
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Anoop Sam John commented on HBASE-19451:
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The default heap % for the on heap Block Cache can be diff based on whether BC
is there or not. Ya this is possible.. We can say if only LRU cache, we will
continue with 40% or else 20%.
I did not get ur mean on auto sizing thing. For the initial decision the auto
sizing way not needed. That is at run time and if enabled ya that will auto
tune the LRU cache size within a range. That range max will be this new max
what we arrived at.
Sorry Stack if u mean some thing else pls correct me
> Reduce default Block Cache size percentage
> ------------------------------------------
>
> Key: HBASE-19451
> URL: https://issues.apache.org/jira/browse/HBASE-19451
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Fix For: 2.0.0-beta-1
>
>
> This is 40% by default now. Reduce this to be 20%? Or even 10%?
> It only needs to keep index and bloom blocks.
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