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https://issues.apache.org/jira/browse/HBASE-12934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14296518#comment-14296518
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Devaraj Das edited comment on HBASE-12934 at 1/29/15 8:08 AM:
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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. It'll be good to get numbers on performance.
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.
Does the above sound reasonable (and yes this jira seems jinxed; let's open a
new one once the summary above is agreed upon as a good starting point).
was (Author: devaraj):
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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