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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8007) HA: use substitution token for fencing argument
Date Wed, 04 Apr 2012 08:23:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246113#comment-13246113
] 

Todd Lipcon commented on HADOOP-8007:
-------------------------------------

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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