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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2353) HBASE-2283 removed bulk sync optimization for multi-row puts
Date Thu, 25 Mar 2010 16:45:27 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849770#action_12849770
] 

Jonathan Gray commented on HBASE-2353:
--------------------------------------

+1 on shipping with multiple example configs.  As long as getting started docs are clear,
I don't care so much what the shipped-with defaults are and am fine w/ karthik's take that
we should ship w/ correctness/durability.

> 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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