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https://issues.apache.org/jira/browse/HBASE-3287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081432#comment-13081432
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stack commented on HBASE-3287:
------------------------------
@Yi This issue looks like its old enough for the patch herein to have made
0.90. Are you not finding it there? (I believe there were issues found with
the way we cached blocks on write found subsequent to the application of this
patch, wrong name was used when file was added to cache -- in trunk its been
redone)
> Add option to cache blocks on hfile write and evict blocks on hfile close
> -------------------------------------------------------------------------
>
> Key: HBASE-3287
> URL: https://issues.apache.org/jira/browse/HBASE-3287
> Project: HBase
> Issue Type: New Feature
> Components: io, regionserver
> Affects Versions: 0.90.0
> Reporter: Jonathan Gray
> Assignee: Jonathan Gray
> Fix For: 0.92.0
>
> Attachments: HBASE-3287-FINAL-trunk.patch
>
>
> This issue is about adding configuration options to add/remove from the block
> cache when creating/closing files. For use cases with lots of flushing and
> compacting, this might be desirable to prevent cache misses and maximize the
> effective utilization of total block cache capacity.
> The first option, {{hbase.rs.cacheblocksonwrite}}, will make it so we
> pre-cache blocks as we are writing out new files.
> The second option, {{hbase.rs.evictblocksonclose}}, will make it so we evict
> blocks when files are closed.
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