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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6116) Allow parallel HDFS writes for HLogs.
Date Tue, 26 Jun 2012 04:10:45 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-6116:
----------------------------------

    Attachment: apurtell-patches.zip

bq. BTW, do you still have the HBase-0.94 patch you made (so I do not have to do the same
work)?

Attached as 'apurtell-patches.zip'. The second HBase patch won't apply directly, in this code
base the histograms are scaled to milliseconds, but the changes are easy to apply by hand.
                
> Allow parallel HDFS writes for HLogs.
> -------------------------------------
>
>                 Key: HBASE-6116
>                 URL: https://issues.apache.org/jira/browse/HBASE-6116
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>         Attachments: 6116-v1.txt, apurtell-patches.zip, pipelined-vs-parallel-comparison.zip
>
>
> In HDFS-1783 I adapted Dhrubas changes to be used in Hadoop trunk.
> This issue will include the necessary reflection changes to optionally enable this for
the WALs in HBase.

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