[
https://issues.apache.org/jira/browse/HDFS-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14307310#comment-14307310
]
Hudson commented on HDFS-7734:
------------------------------
SUCCESS: Integrated in Hadoop-Hdfs-trunk-Java8 #92 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/92/])
HDFS-7734. Class cast exception in NameNode#main. Contributed by Yi Liu. (wang:
rev 9175105eeaecf0a1d60b57989b73ce45cee4689b)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/SignalLogger.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LogAdapter.java
> 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
> Fix For: 2.7.0
>
> 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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