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https://issues.apache.org/jira/browse/HDFS-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14304715#comment-14304715
 ] 

Hadoop QA commented on HDFS-7734:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12696378/HDFS-7734.001.patch
  against trunk revision 26dee14.

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

    {color:green}+1 tests included{color}.  The patch appears to include 2 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 following test timeouts occurred in 
hadoop-hdfs-project/hadoop-hdfs:

org.apache.hadoop.hdfs.server.balancer.TestBalancerWithSaslTests
org.apache.hadoop.hdfs.TestEncryptedTransfer

Test results: 
https://builds.apache.org/job/PreCommit-HDFS-Build/9425//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9425//console

This message is automatically generated.

> Class cast exception in NameNode#main
> -------------------------------------
>
>                 Key: HDFS-7734
>                 URL: https://issues.apache.org/jira/browse/HDFS-7734
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.7.0
>            Reporter: Arpit Agarwal
>            Assignee: Yi Liu
>            Priority: Blocker
>         Attachments: HDFS-7734.001.patch
>
>
> NameNode hits the following exception immediately on startup.
> {code}
> 15/02/03 15:50:25 ERROR namenode.NameNode: Failed to start namenode.
> java.lang.ClassCastException: org.apache.log4j.Logger cannot be cast to 
> org.apache.commons.logging.Log
>         at 
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1557)
> 15/02/03 15:50:25 INFO util.ExitUtil: Exiting with status 1
> {code}
> Location of the exception in NameNode.java:
> {code}
>   public static void main(String argv[]) throws Exception {
>     if (DFSUtil.parseHelpArgument(argv, NameNode.USAGE, System.out, true)) {
>       System.exit(0);
>     }
>     try {
>       StringUtils.startupShutdownMessage(NameNode.class, argv,
>           (org.apache.commons.logging.Log) 
> LogManager.getLogger(LOG.getName()));   <<<<< Failed here.
> {code}



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