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https://issues.apache.org/jira/browse/HBASE-17083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15664390#comment-15664390
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stack commented on HBASE-17083:
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Excellent feedback. Let me fold into our doc.
Sounds like it should stay off by default (though I hate doing that).
> Enable hedged reads by default in hbase-2.0.0
> ---------------------------------------------
>
> Key: HBASE-17083
> URL: https://issues.apache.org/jira/browse/HBASE-17083
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: stack
> Assignee: stack
> Priority: Critical
> Fix For: 2.0.0
>
>
> Hedged reads came in in hadoop-2.4. hbase-2.0.0 requires a later version so
> we can expect support to be preseent. This issue is about a bit of testing to
> show defined benefit when hedged reads are on and then enabling them by
> default in hbase-2.0.0.
> See http://hbase.apache.org/book.html#_hedged_reads for current state of the
> doc.
> This issue came up in conversation a few of us were having Thursday and then
> Lars George started asking me their state in the last 24 hours.
> Assigning myself to do the bit of testing and enabling.
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