[MAPREDUCE-7122] MRAppMaster should not exit before shutdown when an error is encountered

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.8.4
• Assignee: Kuhu Shukla
• Reporter: Kuhu Shukla
• Created: 12/Jul/18 18:36
• Updated: 12/Jul/18 18:38

Description

In a scenario where AM fails with an exception and calls the exit method, it fails to shutdown cleanly and can cause the JHS to not shutdown cleanly either.

appMasterUgi.doAs(new PrivilegedExceptionAction<Object>() {
      @Override
      public Object run() throws Exception {
        appMaster.init(conf);
        appMaster.start();
        if(appMaster.errorHappenedShutDown) {
          throw new IOException("Was asked to shut down.");
        }
        return null;
      }
    });