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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2761) New TaskController code doesn't run on Windows
Date Mon, 01 Aug 2011 17:12:09 GMT
New TaskController code doesn't run on Windows

                 Key: MAPREDUCE-2761
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2761
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: task-controller, tasktracker
    Affects Versions:, 0.23.0
            Reporter: Todd Lipcon

After MAPREDUCE-2178, TaskController assumes that pids are always available. The shell executor
object that's used to launch a JVM isn't retained, but rather the pid is set when the task
heartbeats. On Windows, there are no pids, and since the ShellCommandExecutor object is no
longer around, we can't call process.destroy(). So, the TaskController doesn't work on Cygwin

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