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  1. Hadoop Common
  2. HADOOP-13533

User cannot set empty HADOOP_SSH_OPTS environment variable option

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 3.0.0-alpha2
    • Fix Version/s: 3.0.0-alpha1
    • Component/s: scripts
    • Labels:
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      Description

      In hadoop-functions.sh in the hadoop_basic_init function there is this initialization of HADOOP_SSH_OPTS:

      HADOOP_SSH_OPTS=${HADOOP_SSH_OPTS:-"-o BatchMode=yes -o StrictHostKeyChecking=no -o ConnectTimeout=10s"}
      

      I believe this parameter substitution is a bug. While most of the environment variables set in the function are generally required for functionality (HADOOP_LOG_DIR, HADOOP_LOGFILE, etc.) I don't believe HADOOP_SSH_OPTS is one of them. If the user wishes to set HADOOP_SSH_OPTS to an empty string (i.e. HADOOP_SSH_OPTS="") they should be able to. But instead, this is requiring HADOOP_SSH_OPTS to always be set to something.

      So I think the

      ":-"
      

      in the above should be

      "-"
      

      Github pull request to be sent shortly.

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              • Assignee:
                chu11 Albert Chu
                Reporter:
                chu11 Albert Chu
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                • Created:
                  Updated:
                  Resolved: