Support a hierarchy of queues in the Map/Reduce framework
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Key: MAPREDUCE-853
URL: https://issues.apache.org/jira/browse/MAPREDUCE-853
Project: Hadoop Map/Reduce
Issue Type: New Feature
Components: jobtracker
Reporter: Hemanth Yamijala
Fix For: 0.21.0
In MAPREDUCE-824, we proposed introducing a hierarchy of queues in the capacity
scheduler. Currently, the M/R framework provides the notion of job queues and
handles some functionality related to queues in a scheduler-agnostic manner.
This functionality includes:
- Managing the list of ACLs for queues
- Managing the run state of queues - running or stopped
- Displaying scheduling information about queues in the jobtracker web UI and
job client CLI
- Displaying list of jobs in a queue in the jobtracker web UI and job client CLI
- Providing APIs for list queues and queue information in JobClient.
Since it would be beneficial to extend this functionality to hierarchical
queues, this JIRA is proposing introducing the concept into the map/reduce
framework as well. We could treat this as an umbrella JIRA and file additional
tasks for each of the changes involved, sticking to the high level approach in
this JIRA.
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