Change Details

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Right now we use `repl.pl` to move slaves around: ie: when a master failover is needed, we use it to move all the slaves under the new master. However, this script doesn't work when the master is unavailable. It would be a good start to either refactor `repl.pl` or create a new script that could move slaves under a different host when the master is unavailable. ie: master has crashed and we have to move all the slaves to replicate from the candidate master during an emergency.