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https://issues.apache.org/jira/browse/HDFS-6633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14260906#comment-14260906
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Hadoop QA commented on HDFS-6633:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12689437/HDFS-6633-003.patch
against trunk revision 249cc90.
{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:red}-1 findbugs{color}. The patch appears to introduce 1 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.blockmanagement.TestDatanodeManager
org.apache.hadoop.hdfs.TestLeaseRecovery2
The following test timeouts occurred in
hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.TestReadWhileWriting
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/9129//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/9129//artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9129//console
This message is automatically generated.
> Support reading new data in a being written file until the file is closed
> -------------------------------------------------------------------------
>
> Key: HDFS-6633
> URL: https://issues.apache.org/jira/browse/HDFS-6633
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs-client
> Reporter: Tsz Wo Nicholas Sze
> Assignee: Vinayakumar B
> Attachments: HDFS-6633-001.patch, HDFS-6633-002.patch,
> HDFS-6633-003.patch, h6633_20140707.patch, h6633_20140708.patch
>
>
> When a file is being written, the file length keeps increasing. If the file
> is opened for read, the reader first gets the file length and then read only
> up to that length. The reader will not be able to read the new data written
> afterward.
> We propose adding a new feature so that readers will be able to read all the
> data until the writer closes the file.
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