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https://issues.apache.org/jira/browse/HDFS-7410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14219194#comment-14219194
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Hadoop QA commented on HDFS-7410:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12682583/HDFS-7410-002.patch
  against trunk revision a9a0cc3.

    {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-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.ha.TestZKFailoverControllerStress

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

Test results: 
https://builds.apache.org/job/PreCommit-HDFS-Build/8788//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8788//console

This message is automatically generated.

> Support CreateFlags with append() to support hsync() for appending streams
> --------------------------------------------------------------------------
>
>                 Key: HDFS-7410
>                 URL: https://issues.apache.org/jira/browse/HDFS-7410
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs-client
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>         Attachments: HDFS-7410-001.patch, HDFS-7410-002.patch
>
>
> Current FileSystem APIs include CreateFlag only for the create() api, and 
> some of these (SYNC_BLOCK) are for only client side and will not be stored in 
> metadata of the file. So append() operation will not know about these flags.
> It would be Good to support these features for append too.
> Compatibility: One more overloaded append API needs to be added to support 
> the flags keeping the current API as is.



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