Galera fails to start after rebooting one of the controllers due to 'Unable to detect last known write sequence number'

Issue

• Galera cluster not starting.
• How to restart failed galera cluster node

Failed Actions:
* galera_start_0 on overcloud-controller-0 'unknown error' (1): call=220, status=complete, exitreason='Unable to detect last known write sequence number',
    last-rc-change='Fri Jan 22 09:26:03 2016', queued=0ms, exec=2533ms