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https://issues.apache.org/jira/browse/HADOOP-7983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13196349#comment-13196349
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Todd Lipcon commented on HADOOP-7983:
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+1, looks good. The only suggestion I have is that, rather than always making
the host:port 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. If you want to do this as a followup, that's fine.
> HA: failover should be able to pass args to fencers
> ---------------------------------------------------
>
> Key: HADOOP-7983
> URL: https://issues.apache.org/jira/browse/HADOOP-7983
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: ha
> Affects Versions: HA Branch (HDFS-1623)
> Reporter: Eli Collins
> Assignee: Eli Collins
> Attachments: hadoop-7983.txt, hadoop-7983.txt
>
>
> Currently fencing method args are passed in the config (eg
> "sshfence(host1,8022)" indicates to fence the service running on port 8022 on
> host1. The target service to fence should be determined by the failover (we
> fence the currently active service) not configured statically.
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