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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6867) For DFSOutputStream, do pipeline recovery for a single block in the background
Date Sat, 02 May 2015 05:00:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14524937#comment-14524937
] 

Hadoop QA commented on HDFS-6867:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply the patch during
dryrun. |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12669530/HDFS-6867-20140917-v2.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / f1a152c |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/10664/console |


This message was automatically generated.

> For DFSOutputStream, do pipeline recovery for a single block in the background
> ------------------------------------------------------------------------------
>
>                 Key: HDFS-6867
>                 URL: https://issues.apache.org/jira/browse/HDFS-6867
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>            Reporter: Colin Patrick McCabe
>            Assignee: Zhe Zhang
>         Attachments: HDFS-6867-20140827-2.patch, HDFS-6867-20140827-3.patch, HDFS-6867-20140827.patch,
HDFS-6867-20140828-1.patch, HDFS-6867-20140828-2.patch, HDFS-6867-20140910.patch, HDFS-6867-20140911.patch,
HDFS-6867-20140917-v1.patch, HDFS-6867-20140917-v2.patch, HDFS-6867-design-20140820.pdf, HDFS-6867-design-20140821.pdf,
HDFS-6867-design-20140822.pdf, HDFS-6867-design-20140827.pdf, HDFS-6867-design-20140910.pdf
>
>
> For DFSOutputStream, we should be able to do pipeline recovery in the background, while
the user is continuing to write to the file.  This is especially useful for long-lived clients
that write to an HDFS file slowly. 



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