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Date: Wed, 27 Feb 2013 06:25:13 +0000 (UTC)
From: "stack (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12630493.1359768214214.348652.1361946313953@arcas>
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Subject: [jira] [Commented] (HBASE-7747) Import tools should use a combiner
 to merge Puts
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    [ https://issues.apache.org/jira/browse/HBASE-7747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13588056#comment-13588056 ] 

stack commented on HBASE-7747:
------------------------------

[~lhofhansl] With a little shoehorning, it could be made work. PutSortReducer has size check (I thought of this and actually looked at PSR but then thought the APIs too much different)
                
> Import tools should use a combiner to merge Puts
> ------------------------------------------------
>
>                 Key: HBASE-7747
>                 URL: https://issues.apache.org/jira/browse/HBASE-7747
>             Project: HBase
>          Issue Type: Improvement
>          Components: mapreduce, Performance
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>            Priority: Minor
>             Fix For: 0.95.0, 0.98.0
>
>         Attachments: 0001-HBASE-7747-Import-use-a-Put-combiner-where-possible.patch, 0001-HBASE-7747-Import-use-a-Put-combiner-where-possible.patch
>
>
> Multiple Puts to the same row should be combined into a single mutation object. This can be done with a Combiner. Import.Importer#writeResult appears to do this manually.

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