[MAPREDUCE-1007] MAPREDUCE-777 breaks the UI for hierarchial Queues.

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0
• Component/s: jobtracker
• Hadoop Flags: Reviewed
• Assignee: V.V.Chaitanya Krishna
• Reporter: rahul k singh
• Created: 18/Sep/09 19:59
• Updated: 24/Aug/10 21:17
• Resolved: 20/Nov/09 10:00

Description

MAPREDUCE-777 breaks jobtracker UI for hierarchial queues. When jobtracker.jsp is accessed, it throws the following exception:

java.lang.NullPointerException
	at org.apache.hadoop.mapred.CapacityTaskScheduler.getJobs(CapacityTaskScheduler.java:1007)
	at org.apache.hadoop.mapred.JobTracker.getJobsFromQueue(JobTracker.java:3888)
	at org.apache.hadoop.mapred.JobTracker.getQueueInfoArray(JobTracker.java:3869)
	at org.apache.hadoop.mapred.JobTracker.getRootQueues(JobTracker.java:3830)
	at org.apache.hadoop.mapred.jobtracker_jsp.generateSummaryTable(jobtracker_jsp.java:36)
        .... 

(Issue number and the line number in code match - 1007. Some fun for a Hadoop developer )

Issue Links

• blocks: MAPREDUCE-1082 Command line UI for queues' information is broken with hierarchical queues.