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https://issues.apache.org/jira/browse/HBASE-11696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14089529#comment-14089529
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Anoop Sam John commented on HBASE-11696:
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bq.On CBC, L1 is META blocks only.
META alone? We have HCD#setCacheDataInL1(boolean value) right? Not gone
through the entire code flow of that. Correct me if I wrong.
bq. I could imagine it running a while and then ergonomics asking its usage is
and then shrinking down the L1 so it was the size of the META block cache only.
It could check back on occasion to see if evictions. If so, size up the L1
until evictions go to zero again.
Ya the tuner framework will do this work.
> 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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