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Posted to common-issues@hadoop.apache.org by "Xiaoyu Yao (JIRA)" <ji...@apache.org> on 2016/03/14 19:41:33 UTC

[jira] [Created] (HADOOP-12922) Separate Scheduler from FCQ

Xiaoyu Yao created HADOOP-12922:
-----------------------------------

             Summary: Separate Scheduler from FCQ
                 Key: HADOOP-12922
                 URL: https://issues.apache.org/jira/browse/HADOOP-12922
             Project: Hadoop Common
          Issue Type: Sub-task
            Reporter: Xiaoyu Yao
            Assignee: Xiaoyu Yao


Currently, {{CallQueueManager}} has a reference to FCQ which owns scheduler, call queue  and multiplexer. It will make it easier to develop new call queues if scheduler and multiplexer can be made pluggable for reuse. 
  
This ticket is opened to define a separate scheduler interface so that 
1) different schedulers can be plugged in while using FCQ.
2) scheduler related metrics can be easily added for monitoring and trouble shooting.





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