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https://issues.apache.org/jira/browse/HBASE-11696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14090363#comment-14090363
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Anoop Sam John commented on HBASE-11696:
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It depends on the auto tuner impl. The default simple one will increase size
(till max size) when there are evictions- until to reach a non evicting state.
Also this it can do only when there is very less/no write load and there are no
blocking flushes due to global heap pressure.
And regarding DATA/META blocks hosting, will it be better we have separate
cache parts for META and DATA blocks? Not gone into more details in this area.
> 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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