[jira] [Created] (YARN-157) The option shell_command and shell_script have conflict

["Li Ming (JIRA)" <ji...@apache.org>]

Li Ming created YARN-157:
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             Summary: The option shell_command and shell_script have conflict
                 Key: YARN-157
                 URL: https://issues.apache.org/jira/browse/YARN-157
             Project: Hadoop YARN
          Issue Type: Bug
          Components: applications/distributed-shell
    Affects Versions: 2.0.1-alpha
            Reporter: Li Ming


The DistributedShell has an option shell_script to let user specify a shell script which will be executed in containers. But the issue is that the shell_command option is a must, so if both options are set, then every container executor will end with exitCode=1. This is because DistributedShell executes the shell_command and shell_script together. For example, if shell_command is 'date' then the final command to be executed in container is "date `ExecShellScript.sh`", so the date command will treat the result of ExecShellScript.sh as its parameter, then there will be an error. 

To solve this, the DistributedShell should not use the value of shell_command option when the shell_script option is set, and the shell_command option also should not be mandatory. 

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