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https://issues.apache.org/jira/browse/HDFS-6867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14129881#comment-14129881
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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/12667965/HDFS-6867-20140910.patch
against trunk revision 4be9517.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 2 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/7995//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7995//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-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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