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From "Li Bo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7729) Add logic to DFSOutputStream to support writing a file in striping layout
Date Thu, 26 Feb 2015 09:55:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14338169#comment-14338169
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Li Bo commented on HDFS-7729:
-----------------------------

hi, [~jingzhao] and [~zhz] , I come back today  and a new HDFS-7793 patch is just uploaded.
It fixes the bug of appending to files.

> Add logic to DFSOutputStream to support writing a file in striping layout 
> --------------------------------------------------------------------------
>
>                 Key: HDFS-7729
>                 URL: https://issues.apache.org/jira/browse/HDFS-7729
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Li Bo
>            Assignee: Li Bo
>         Attachments: Codec-tmp.patch, HDFS-7729-001.patch, HDFS-7729-002.patch, HDFS-7729-003.patch,
HDFS-7729-004.patch, HDFS-7729-005.patch, HDFS-7729-006.patch, HDFS-7729-007.patch, HDFS-7729-008.patch,
HDFS-7729-009.patch
>
>
> If client wants to directly write a file striping layout, we need to add some logic to
DFSOutputStream.  DFSOutputStream needs multiple DataStreamers to write each cell of a stripe
to a remote datanode. 



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