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Posted to common-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2009/03/04 09:43:56 UTC
[jira] Updated: (HADOOP-3998) Got an exception from ClientFinalizer
when the JT is terminated
[ https://issues.apache.org/jira/browse/HADOOP-3998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
dhruba borthakur updated HADOOP-3998:
-------------------------------------
Attachment: closeAll2.patch
Incorporated Hairong's review comments. In particular, the client bails out if it encounters that the datanode is already doing a lease recovery.
> Got an exception from ClientFinalizer when the JT is terminated
> ---------------------------------------------------------------
>
> Key: HADOOP-3998
> URL: https://issues.apache.org/jira/browse/HADOOP-3998
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.19.0
> Reporter: Amar Kamat
> Assignee: dhruba borthakur
> Priority: Blocker
> Fix For: 0.18.4, 0.19.2, 0.20.0
>
> Attachments: closeAll.patch, closeAll.patch, closeAll.patch, closeAll2.patch
>
>
> This happens when we terminate the JT using _control-C_. It throws the following exception
> {noformat}
> Exception closing file my-file
> java.io.IOException: Filesystem closed
> at org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:193)
> at org.apache.hadoop.hdfs.DFSClient.access$700(DFSClient.java:64)
> at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.closeInternal(DFSClient.java:2868)
> at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.close(DFSClient.java:2837)
> at org.apache.hadoop.hdfs.DFSClient$LeaseChecker.close(DFSClient.java:808)
> at org.apache.hadoop.hdfs.DFSClient.close(DFSClient.java:205)
> at org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:253)
> at org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:1367)
> at org.apache.hadoop.fs.FileSystem.closeAll(FileSystem.java:234)
> at org.apache.hadoop.fs.FileSystem$ClientFinalizer.run(FileSystem.java:219)
> {noformat}
> Note that _my-file_ is some file used by the JT.
> Also if there is some file renaming done, then the exception states that the earlier file does not exist. I am not sure if this is a MR issue or a DFS issue. Opening this issue for investigation.
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