[MAPREDUCE-4321] DefaultTaskController fails to launch tasks on Windows

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1-win
• Target Version/s: 1-win
• Assignee: Ivan Mitic
• Reporter: Ivan Mitic
• Created: 06/Jun/12 21:15
• Updated: 11/Jun/12 19:04
• Resolved: 11/Jun/12 19:04

Description

DefaultTaskController#launchTask tries to run the child JVM task with the following command line:

cmd.exe /c /c:/some/path.../taskjvm.cmd

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
...

Issue Links

• is part of: HADOOP-8079 Proposal for enhancements to Hadoop for Windows Server and Windows Azure development and runtime environments