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https://issues.apache.org/jira/browse/HBASE-20105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16380914#comment-16380914
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Jean-Marc Spaggiari commented on HBASE-20105:
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Sounds like StoragePolicy can be configured only at the directory level
(Region/CF), and not for a specific file (Flushed file). It might require new
feature on HDFS side. Investigating.
> Allow flushes to target SSD storage
> -----------------------------------
>
> Key: HBASE-20105
> URL: https://issues.apache.org/jira/browse/HBASE-20105
> Project: HBase
> Issue Type: New Feature
> Affects Versions: hbase-2.0.0-alpha-4
> Reporter: Jean-Marc Spaggiari
> Priority: Major
>
> On heavy writes usecases, flushes are compactes together pretty quickly.
> Allowing flushes to go on SSD allows faster flush and faster first
> compactions. Subsequent compactions going on regular storage.
>
> I will be interesting to have an option to target SSD for flushes.
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