[AMBARI-21148] Add a flag to indicate NN restart is rolling

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: ambari-server
• Assignee: Vitaly Brodetskyi
• Reporter: Vitaly Brodetskyi
• Created: 30/May/17 19:56
• Updated: 15/Jun/17 22:17
• Resolved: 15/Jun/17 21:36

Description

If restart is rolling stack script should wait for NN to be out of safemode with large timeout.
Rolling indicates its an HDFS level restart so NN restart needs to be up and accepting requests before we move on.

Issue Links

• links to: review request