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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2017/06/29 23:51:01 UTC
[jira] [Resolved] (HBASE-17083) Enable hedged reads by default in
hbase-2.0.0
[ https://issues.apache.org/jira/browse/HBASE-17083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-17083.
---------------------------
Resolution: Later
Enabling hedged-reads costs so users should opt-in rather than have it on by default. Resolving. We have doc. in refguide on plus/minus's thanks to [~THEcreationist]
> 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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