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https://issues.apache.org/jira/browse/HADOOP-3641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amar Kamat resolved HADOOP-3641.
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Resolution: Duplicate
HADOOP-3639
> Exception while killing the JobTracker
> --------------------------------------
>
> Key: HADOOP-3641
> URL: https://issues.apache.org/jira/browse/HADOOP-3641
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: Amar Kamat
>
> {code}
> Exception in thread "Thread-5" java.util.ConcurrentModificationException
> at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
> at java.util.TreeMap$KeyIterator.next(TreeMap.java:1152)
> at org.apache.hadoop.dfs.DFSClient.close(DFSClient.java:212)
> at
> org.apache.hadoop.dfs.DistributedFileSystem.close(DistributedFileSystem.java:228)
> at
> org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:1379)
> at org.apache.hadoop.fs.FileSystem.closeAll(FileSystem.java:230)
> at
> org.apache.hadoop.fs.FileSystem$ClientFinalizer.run(FileSystem.java:215)
> {code}
> This is when I manually try to kill a JobTracker.
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