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Posted to hdfs-issues@hadoop.apache.org by "Yi Liu (JIRA)" <ji...@apache.org> on 2015/02/04 04:28:35 UTC
[jira] [Updated] (HDFS-7734) Class cast exception in NameNode#main
[ https://issues.apache.org/jira/browse/HDFS-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yi Liu updated HDFS-7734:
-------------------------
Attachment: HDFS-7734.001.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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