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From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7734) Class cast exception in NameNode#main
Date Wed, 04 Feb 2015 12:53:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yi Liu updated HDFS-7734:
-------------------------
    Attachment:     (was: HDFS-7734.002.patch)

> 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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