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https://issues.apache.org/jira/browse/HADOOP-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246074#comment-13246074
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Aaron T. Myers commented on HADOOP-8007:
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+1, the patch looks good to me. Thanks a lot for doing this, Todd.
Please do file the separate JIRA for the docs, and I'll be happy to review
those as well.
> HA: use substitution token for fencing argument
> -----------------------------------------------
>
> Key: HADOOP-8007
> URL: https://issues.apache.org/jira/browse/HADOOP-8007
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ha
> Affects Versions: 2.0.0
> Reporter: Aaron T. Myers
> Assignee: Todd Lipcon
> Attachments: hadoop-8007.txt
>
>
> Per HADOOP-7983 currently the fencer always passes the target host:port to
> fence as the first argument to the fence script, it would be better to use a
> substitution token. That is to say, the user would configure "myfence.sh
> $TARGETHOST foo bar" and Hadoop would substitute the target. This would allow
> use of pre-existing scripts that might have a different ordering of arguments
> without a wrapper.
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