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Date: Thu, 19 Jun 2014 04:54:24 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12722377.1403136220936.6397.1403153664758@arcas>
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References: <JIRA.12722377.1403136220936@arcas>
Subject: [jira] [Commented] (HDFS-6563) NameNode cannot save fsimage in
 certain circumstances when snapshots are in use
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    [ https://issues.apache.org/jira/browse/HDFS-6563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14036960#comment-14036960 ] 

Hadoop QA commented on HDFS-6563:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12651320/HDFS-6563.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 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 1.3.9) warnings.

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

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7172//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7172//console

This message is automatically generated.

> NameNode cannot save fsimage in certain circumstances when snapshots are in use
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-6563
>                 URL: https://issues.apache.org/jira/browse/HDFS-6563
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode, snapshots
>    Affects Versions: 2.4.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>            Priority: Critical
>         Attachments: HDFS-6563.patch
>
>
> Checkpoints will start to fail and the NameNode will not be able to manually saveNamespace if the following set of steps occurs:
> # A zero-length file appears in a snapshot
> # That file is later lengthened to include at least one block
> # That file is subsequently deleted from the present file system but remains in the snapshot
> More details in the first comment.


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