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https://issues.apache.org/jira/browse/HDFS-5077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750870#comment-13750870
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Hadoop QA commented on HDFS-5077:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12600046/HDFS-5077_2.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}. The javadoc tool did not generate any
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:red}-1 core tests{color}. The following test timeouts occurred in
hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.TestPread
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/4893//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4893//console
This message is automatically generated.
> NPE in FSNamesystem.commitBlockSynchronization()
> ------------------------------------------------
>
> Key: HDFS-5077
> URL: https://issues.apache.org/jira/browse/HDFS-5077
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.5-alpha
> Reporter: Konstantin Shvachko
> Assignee: Plamen Jeliazkov
> Attachments: HDFS-5077_2.patch, HDFS-5077.patch
>
>
> NN starts a block recovery, which will synchronize block replicas on
> different DNs. In the end one of DNs will report the list of the nodes
> containing the consistent replicas to the NN via commitBlockSynchronization()
> call. The NPE happens if just before processing commitBlockSynchronization()
> NN removes from active one of DNs that are then reported in the call.
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