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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7734) Class cast exception in NameNode#main
Date Wed, 04 Feb 2015 14:51:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14305184#comment-14305184

Hadoop QA commented on HDFS-7734:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision 26dee14.

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/9428//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9428//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, HDFS-7734.002.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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