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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4321) DefaultTaskController fails to launch tasks on Windows
Date Thu, 07 Jun 2012 14:26:23 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291027#comment-13291027
] 

Daryn Sharp commented on MAPREDUCE-4321:
----------------------------------------

+1 Looks good!  One suggestion to maybe consider, would it in general help to create a {{Path#toFile()}}
and {{Path(File)}} ctor?  I had consider the additional ctor change on HADOOP-8139 and I believe
Doug liked the idea.
                
> DefaultTaskController fails to launch tasks on Windows
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-4321
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4321
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Ivan Mitic
>            Assignee: Ivan Mitic
>         Attachments: MAPREDUCE-4321-branch-1-win.patch
>
>
> DefaultTaskController#launchTask tries to run the child JVM task with the following command
line:
> {code}cmd.exe /c /c:/some/path.../taskjvm.cmd{code}
> And this fails because the given path is prefixed with a forward slash. This also causes
a number of tests to fail:
> org.apache.hadoop.conf.TestNoDefaultsJobConf
> org.apache.hadoop.fs.TestCopyFiles
> org.apache.hadoop.mapred.TestBadRecords
> org.apache.hadoop.mapred.TestClusterMRNotification
> org.apache.hadoop.mapred.TestCompressedEmptyMapOutputs
> org.apache.hadoop.mapred.TestControlledMapReduceJob
> org.apache.hadoop.mapred.TestCustomOutputCommitter
> org.apache.hadoop.mapred.TestEmptyJob
> org.apache.hadoop.mapred.TestFileOutputFormat
> org.apache.hadoop.mapred.TestIsolationRunner
> org.apache.hadoop.mapred.TestJavaSerialization
> org.apache.hadoop.mapred.TestJobCleanup
> org.apache.hadoop.mapred.TestJobCounters
> org.apache.hadoop.mapred.TestJobHistoryServer
> org.apache.hadoop.mapred.TestJobInProgressListener
> org.apache.hadoop.mapred.TestJobKillAndFail
> org.apache.hadoop.mapred.TestJobName
> ...

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