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https://issues.apache.org/jira/browse/HBASE-11696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14090791#comment-14090791
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stack commented on HBASE-11696:
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bq. The default simple one will increase size (till max size) when there are
evictions- until to reach a non evicting state.
Nice. Where is this doc'd. This feature is not on by default, right (because
afraid messing w/ mem settings will mess up GC?). Shouldn't we turn it on in
master branch?
bq. 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.
Well, at moment options are all types in cache or if CombinedBlockCache, the
bucketcache policy class, then DATA in L2 and META in L1 (caveat the flag you
cite above on CF) so special areas for DATA and META seems like a complication.
You want this delineation for ergonomic feature? Thanks.
> 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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