[STORM-1667] Log the IO Exception when deleting worker pid dir

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1.0.0
• Component/s: storm-core
• Epic Link: Release Apache Storm 1.0.0
• Assignee: Zhuo Liu
• Reporter: Zhuo Liu
• Created: 30/Mar/16 20:31
• Updated: 01/Apr/16 15:14
• Resolved: 01/Apr/16 15:14

Description

There is a race condition since shutdown-worker is called by both sync-processes and synchronize-supervisor in supervisor. One pid directory might have been already deleted when rmr-as-user tries to delete it.
Therefore, we should not let the FileNotFoundException get thrown and crash the supervisor.