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https://issues.apache.org/jira/browse/HBASE-3287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965310#action_12965310
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HBase Review Board commented on HBASE-3287:
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Message from: "Ryan Rawson" <ryano...@gmail.com>
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branches/0.90/src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java
<http://review.cloudera.org/r/1261/#comment6349>
why would you not want to evict blocks from the cache on close?
- Ryan
> 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: Improvement
> Components: io, regionserver
> Affects Versions: 0.90.0
> Reporter: Jonathan Gray
> Assignee: Jonathan Gray
> Fix For: 0.92.0
>
>
> 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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