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Posted to issues@hbase.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2010/06/13 20:56:15 UTC

[jira] Resolved: (HBASE-2353) HBASE-2283 removed bulk sync optimization for multi-row puts

     [ https://issues.apache.org/jira/browse/HBASE-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon resolved HBASE-2353.
--------------------------------

    Hadoop Flags: [Reviewed]
      Resolution: Fixed

Committed to trunk. Thanks for review, Stack and Ryan.

> HBASE-2283 removed bulk sync optimization for multi-row puts
> ------------------------------------------------------------
>
>                 Key: HBASE-2353
>                 URL: https://issues.apache.org/jira/browse/HBASE-2353
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ryan rawson
>            Assignee: Todd Lipcon
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: HBASE-2353_def_log_flush.patch
>
>
> 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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