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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11696) Make CombinedBlockCache resizable.
Date Fri, 08 Aug 2014 03:32:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14090257#comment-14090257
] 

stack commented on HBASE-11696:
-------------------------------

Yes.  You are right. If the flag is set on a CF to store DATA blocks in L1, it will be done.
 What you thinking? We'll resize L1 until no evictions up to a max size (whether hosting DATA
and/or META)?

> Make CombinedBlockCache resizable.
> ----------------------------------
>
>                 Key: HBASE-11696
>                 URL: https://issues.apache.org/jira/browse/HBASE-11696
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0
>
>
> HBASE-5349 adds auto tuning of memstore heap and block cache heap. Block cache needs
to be resizable in order for this. CombinedBlockCache is not marked resizable now. We can
make this. On resize the L1 cache (ie. LRU cache) can get resized.



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