[MAPREDUCE-3680] FifoScheduler web service rest API can print out invalid JSON

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.2
• Component/s: mrv2
• Target Version/s: 0.23.1
• Assignee: Unassigned
• Reporter: Thomas Graves
• Created: 17/Jan/12 17:00
• Updated: 11/Feb/12 13:16
• Resolved: 10/Feb/12 14:38

Description

running a GET on the scheduler web services rest api (RM:port/ws/cluster/scheduler) with the FifoScheduler configured with no nodemanagers up yet and it prints out invalid json of NaN for the used Capacity:

{"scheduler":{"schedulerInfo":

{"type":"fifoScheduler","capacity":1.0,"usedCapacity":NaN,"qstate":"RUNNING","minQueueMemoryCapacity":1024,"maxQueueMemoryCapacity":10240,"numNodes":0,"usedNodeCapacity":0,"availNodeCapacity":0,"totalNodeCapacity":0,"numContainers":0}

}}