[MAPREDUCE-4426] Hook daemon process exit for testing

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.0-alpha
• Component/s: test
• Assignee: Unassigned
• Reporter: Eli Collins
• Created: 10/Jul/12 20:22
• Updated: 10/Jul/12 20:22

Description

HDFS-3582 introduced a mechanism for testing daemon exit, this allows us to (1) verify that the daemons don't exit unexpectedly and (2) test the particular cause of exit when we do expect it. I've never seen the same MR jenkins failures that prompted HDFS-3582 but it would be worth updating the various raw calls to System#exit or Runtime#exit in MR to use ExitUtil#terminate for consistency (and eg aid hooking exit for other reasons like HADOOP-8096).

Issue Links

• is related to: HDFS-3582 Hook daemon process exit for testing