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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1535) Add client ability to perform mutations without the WAL
Date Wed, 17 Jun 2009 23:16:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12720981#action_12720981
] 

Andrew Purtell commented on HBASE-1535:
---------------------------------------

If clients are bypassing the WAL for performance during bulk uploads, obviously that totally
breaks HBASE-1295 as currently proposed. 

> Add client ability to perform mutations without the WAL
> -------------------------------------------------------
>
>                 Key: HBASE-1535
>                 URL: https://issues.apache.org/jira/browse/HBASE-1535
>             Project: Hadoop HBase
>          Issue Type: New Feature
>    Affects Versions: 0.20.0
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>             Fix For: 0.20.1
>
>         Attachments: HBASE-1535-v1.patch, HBASE-1535-v2.patch
>
>
> There are a number of cases where a client might not want/need its edits to be written
into the HLog.  The most obvious use of this would be during a bulk import where we want the
best performance possible and data loss is acceptable (can rerun the import).
> Does this become a flag on Put or a special mode of HTable?

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