[MAPREDUCE-4366] mapred metrics shows negative count of waiting maps and reduces

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.2
• Fix Version/s: 1.3.0
• Component/s: jobtracker
• Target Version/s: 1.3.0
• Hadoop Flags: Reviewed
• Assignee: Sandy Ryza
• Reporter: Thomas Graves
• Created: 25/Jun/12 15:33
• Updated: 27/Jul/13 03:44
• Resolved: 27/Jul/13 03:44

Description

Negative waiting_maps and waiting_reduces count is observed in the mapred metrics. MAPREDUCE-1238 partially fixed this but it appears there is still issues as we are seeing it, but not as bad.