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https://issues.apache.org/jira/browse/HADOOP-13533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer updated HADOOP-13533:
--------------------------------------
Assignee: Albert Chu
> User cannot set empty HADOOP_SSH_OPTS environment variable option
> -----------------------------------------------------------------
>
> Key: HADOOP-13533
> URL: https://issues.apache.org/jira/browse/HADOOP-13533
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Affects Versions: 3.0.0-alpha2
> Reporter: Albert Chu
> Assignee: Albert Chu
> Priority: Minor
>
> In hadoop-functions.sh in the hadoop_basic_init function there is this
> initialization of HADOOP_SSH_OPTS:
> {noformat}
> HADOOP_SSH_OPTS=${HADOOP_SSH_OPTS:-"-o BatchMode=yes -o
> StrictHostKeyChecking=no -o ConnectTimeout=10s"}
> {noformat}
> 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
> {noformat}
> ":-"
> {noformat}
> in the above should be
> {noformat}
> "-"
> {noformat}
> Github pull request to be sent shortly.
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