[HDFS-4396] Add START_MSG/SHUTDOWN_MSG for ZKFC

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.2-alpha
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: auto-failover, ha, tools
• Hadoop Flags: Reviewed
• Assignee: Liang Xie
• Reporter: Liang Xie
• Created: 14/Jan/13 05:55
• Updated: 30/Aug/16 01:42
• Resolved: 30/Mar/15 09:56

Description

we have a ZKFC be killed issue yesterday, but there's no shutdown hook msg on current codebase, let's keep the same behivior like HDFS-4153