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https://issues.apache.org/jira/browse/HADOOP-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246113#comment-13246113
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Todd Lipcon commented on HADOOP-8007:
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bq. org.apache.hadoop.ha.TestZKFailoverController
This failure was the JMXEnv issue tracked in HADOOP-8245.
I will commit this momentarily
> 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, 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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