Iguinn, this appears to disagree with the documentation here:
http://docs.splunk.com/Documentation/Splunk/6.6.3/Indexer/Upgradeacluster
"Caution: When upgrading a 6.x single-site indexer cluster, such as 6.2, to a later 6.x cluster, such as 6.3 or 6.4, you must take down and upgrade all peer nodes as a single operation. You cannot perform a rolling, online upgrade of the peer nodes."
Is this a conflict, or am I missing something obvious?
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