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Message-ID: <1906088447.491791269536367120.JavaMail.jira@brutus.apache.org>
Date: Thu, 25 Mar 2010 16:59:27 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: hbase-issues@hadoop.apache.org
Subject: [jira] Commented: (HBASE-2353) HBASE-2283 removed bulk sync
 optimization for multi-row puts
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    [ https://issues.apache.org/jira/browse/HBASE-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849776#action_12849776 ] 

Todd Lipcon commented on HBASE-2353:
------------------------------------

I think the minibatching should actually give us both. Just need to find some time to write the code and give it a benchmark! :)

> 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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