[YARN-4568] Fix message when NodeManager runs into errors initializing the recovery directory

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: yarn
• Labels: supportability
• Hadoop Flags: Reviewed
• Assignee: Ray Chiang
• Reporter: Ray Chiang
• Created: 08/Jan/16 19:41
• Updated: 30/Aug/16 01:07
• Resolved: 01/Jul/16 23:00

Description

When the NodeManager tries to initialize the recovery directory, the method NativeIO#chmod() can throw one of several Errno style exceptions. This propagates up to the top without any try/catch statement.

It would be nice to have a cleaner error message in this situation (plus the original exception) to give users an idea about what part of the system has gone wrong.