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https://issues.apache.org/jira/browse/HBASE-6572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13435305#comment-13435305
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Suresh Srinivas commented on HBASE-6572:
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bq. HDFS-3672 could be viewed as the beginnings of an API for device aware
block placement (the query side).
I am not sure how HDFS-3672 helps in this regard. However I think HDFS-2832
does. That was the main intent of that jira.
> Tiered HFile storage
> --------------------
>
> Key: HBASE-6572
> URL: https://issues.apache.org/jira/browse/HBASE-6572
> Project: HBase
> Issue Type: Brainstorming
> Reporter: Andrew Purtell
>
> Consider how we might enable tiered HFile storage. If HDFS has the
> capability, we could create certain files on solid state devices where they
> might be frequently accessed, especially for random reads; and others (and by
> default) on spinning media as before. We could support the move of frequently
> read HFiles from spinning media to solid state. We already have CF statistics
> for this, would only need to add requisite admin interface; could even
> consider an autotiering option.
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