James Slagle fe87f5bb6b Verify galera is sync'd in yum_update.sh
When the cluster is brought back online after a yum update in
yum_update.sh, we should verify that galera is fully sync'd before
moving on. This ensures the sync is complete before moving on to update
any other nodes in the cluster.

Change-Id: Ie8fc2c5d5214deacea94ca658ac75359b318ced1
2015-11-17 11:27:16 -05:00
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