[MAPREDUCE-4629] Remove JobHistory.DEBUG_MODE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.3, 2.0.0-alpha
• Fix Version/s: 1.2.0, 2.0.2-alpha
• Hadoop Flags: Incompatible change
• Assignee: Karthik Kambatla
• Reporter: Karthik Kambatla
• Created: 01/Sep/12 02:35
• Updated: 03/Nov/14 18:34
• Resolved: 07/Sep/12 16:48

Description

Remove JobHistory.DEBUG_MODE for the following reasons:

1. No one seems to be using it - the config parameter corresponding to enabling it does not even exist in mapred-default.xml
2. The logging being done in DEBUG_MODE needs to move to LOG.debug() and LOG.trace()
3. Buggy handling of helper methods in DEBUG_MODE; e.g. directoryTime() and timestampDirectoryComponent().

Issue Links

• is depended upon by: MAPREDUCE-4643 Make job-history cleanup-period configurable