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Date: Sat, 23 Aug 2014 08:45:11 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12735607.1408579724561.19425.1408783511576@arcas>
In-Reply-To: <JIRA.12735607.1408579724561@arcas>
References: <JIRA.12735607.1408579724561@arcas>
Subject: [jira] [Commented] (HDFS-6898) DN must reserve space for a full
 block when an RBW block is created
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    [ https://issues.apache.org/jira/browse/HDFS-6898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107937#comment-14107937 ] 

Hadoop QA commented on HDFS-6898:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12663482/HDFS-6898.03.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 3 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.balancer.TestBalancerWithSaslDataTransfer
                  org.apache.hadoop.security.TestRefreshUserMappings

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7739//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7739//console

This message is automatically generated.

> DN must reserve space for a full block when an RBW block is created
> -------------------------------------------------------------------
>
>                 Key: HDFS-6898
>                 URL: https://issues.apache.org/jira/browse/HDFS-6898
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.5.0
>            Reporter: Gopal V
>            Assignee: Arpit Agarwal
>         Attachments: HDFS-6898.01.patch, HDFS-6898.03.patch
>
>
> DN will successfully create two RBW blocks on the same volume even if the free space is sufficient for just one full block.
> One or both block writers may subsequently get a DiskOutOfSpace exception. This can be avoided by allocating space up front.


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