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https://issues.apache.org/jira/browse/HBASE-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849015#action_12849015
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ryan rawson commented on HBASE-2353:
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Are you willing to cripple the performance of hbase put speed to
ensure certain log atomic order of operation guarantees in a bulk
insert case?
On Tue, Mar 23, 2010 at 6:52 PM, Kannan Muthukkaruppan (JIRA)
> HBASE-2283 removed bulk sync optimization for multi-row puts
> ------------------------------------------------------------
>
> Key: HBASE-2353
> URL: https://issues.apache.org/jira/browse/HBASE-2353
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: ryan rawson
> Fix For: 0.21.0
>
> Attachments: HBASE-2353-deferred.txt
>
>
> previously to HBASE-2283 we used to call flush/sync once per put(Put[]) call
> (ie: batch of commits). Now we do for every row.
> This makes bulk uploads slower if you are using WAL. Is there an acceptable
> solution to achieve both safety and performance by bulk-sync'ing puts? Or
> would this not work in face of atomic guarantees?
> discuss!
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