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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
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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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