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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 Thu, 18 Sep 2014 00:46:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14138289#comment-14138289
] 

Hadoop QA commented on HDFS-6867:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12669530/HDFS-6867-20140917-v2.patch
  against trunk revision f230248.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/8063//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8063//console

This message is 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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