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https://issues.apache.org/jira/browse/HBASE-2500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans resolved HBASE-2500.
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Resolution: Duplicate
This was done as part of the HFileV2 work.
> Block indexes and meta blocks should be put into the LRU
> --------------------------------------------------------
>
> Key: HBASE-2500
> URL: https://issues.apache.org/jira/browse/HBASE-2500
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Jonathan Gray
> Priority: Minor
> Labels: moved_from_0_20_5
>
> Currently we are not tracking the heap usage of block indexes. We're just
> relying on the fact that we leave a large percentage of total heap as part of
> "everything else" not in memstores or the block cache. The "everything else"
> portion should be left for ephemeral/transient memory usage, not long-lived
> objects like block indexes. Introduction of blooms will extend this issue to
> meta blocks in general.
> All of this should be moved into an LRU. Either the existing block cache LRU
> or a new LRU.
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