[
https://issues.apache.org/jira/browse/HBASE-5303?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrew Purtell resolved HBASE-5303.
-----------------------------------
Resolution: Incomplete
Assignee: (was: dhruba borthakur)
> Separate out rows into multiple files during compaction for better block
> cache utilization
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-5303
> URL: https://issues.apache.org/jira/browse/HBASE-5303
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: dhruba borthakur
>
> This seems odd at first sight, a compaction is supposed to reduce the number
> of files. But there is great advantage to creating hbase blocks where
> adjacent keys are accessed together. One approach would be to make compaction
> write out hot-rows into one file and the cold-rows into another file. This
> increases the efficiency of the block cache because only the blocks in the
> hot-rows file will most frequently be populated in the block cache.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
