[MAPREDUCE-4159] Job is running in Uber mode after setting "mapreduce.job.ubertask.maxreduces" to zero

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 0.23.3, 2.0.2-alpha
• Component/s: mrv2
• Assignee: Devaraj Kavali
• Reporter: Nishan Shetty
• Created: 17/Apr/12 07:19
• Updated: 12/May/16 18:22
• Resolved: 19/Apr/12 16:25

Description

1.Configure "mapreduce.job.ubertask.enable" to true
2.Configure "mapreduce.job.ubertask.maxreduces" to 0(zero)
3.Run job such that it has one reducer(more than "mapreduce.job.ubertask.maxreduces" value)

Observe that job is running in Uber mode instead of normal mode(non uber mode)