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https://issues.apache.org/jira/browse/HADOOP-308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12550832
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Devaraj Das commented on HADOOP-308:
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This should be addressed by the patch for HADOOP-2227
> Task Tracker does not handle the case of read only local dir case correctly
> ----------------------------------------------------------------------------
>
> Key: HADOOP-308
> URL: https://issues.apache.org/jira/browse/HADOOP-308
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.3.2
> Environment: all
> Reporter: Runping Qi
> Assignee: Owen O'Malley
>
> In case that the local dir is not writable on a node, the tasks on the node
> will fail as expected, with an exception like:
> (Read-only file system) at java.io.FileOutputStream.open(Native Method)
> at java.io.FileOutputStream.(FileOutputStream.java:179)
> at java.io.FileOutputStream.(FileOutputStream.java:131)
> at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.(DFSClient.java:723)
> at org.apache.hadoop.dfs.DFSClient.create(DFSClient.java:241)
> at
> org.apache.hadoop.dfs.DistributedFileSystem.createRaw(DistributedFileSystem.java:96)
>
> at
> org.apache.hadoop.fs.FSDataOutputStream$Summer.(FSDataOutputStream.java:44)
> at org.apache.hadoop.fs.FSDataOutputStream.(FSDataOutputStream.java:134)
> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:224)
> at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:176)
> ....
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:265)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:847)
> However, the task tracker will continue accept new tasks and continue to fail.
> The runloop of tasktracker should detect such a problem and exits.
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