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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12934) Utilize Flash storage for flushing
Date Thu, 29 Jan 2015 07:35:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14296518#comment-14296518
] 

Devaraj Das commented on HBASE-12934:
-------------------------------------

I am running the risk of stating the obvious but let me still summarize. As a starter, (1)
we could do flushes of certain CFs that the user sees fit into SSDs (2) compactions should
also happen on files in the SSDs and they should create the outputs on the SSDs. We should
do both these in a single jira. In the next phase of the work, we could do the more intelligent
usage based movement of storefiles to/from SSD.
I was checking with some folks on the issue of wear/tear of SSDs (when subject to the HBase
IO patterns). It seems for the enterprise grade SSDs, it should not a problem.

> Utilize Flash storage for flushing
> ----------------------------------
>
>                 Key: HBASE-12934
>                 URL: https://issues.apache.org/jira/browse/HBASE-12934
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 12934-001.txt
>
>
> Store flushing should be able to make use of hdfs storage policy.
> One option is to allow setting storage policy for the directory path of the specified
column family.



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