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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4026) FiCaSchedulerApp: Revisit ContainerAllocator interface design
Date Fri, 07 Aug 2015 05:35:45 GMT
Wangda Tan created YARN-4026:
--------------------------------

             Summary: FiCaSchedulerApp: Revisit ContainerAllocator interface design
                 Key: YARN-4026
                 URL: https://issues.apache.org/jira/browse/YARN-4026
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Wangda Tan
            Assignee: Wangda Tan


After YARN-3983, we have an extensible ContainerAllocator which can be used by FiCaSchedulerApp
to decide how to allocate resources.

While working on YARN-1651 (allocate resource to increase container), I found existing logic:
- ContainerAllocator decides what to allocate for a given node and priority, it's not flexible
enough: To support different kinds of resource allocation, for example, priority as weight
/ skip priority or not, etc. It's better to let ContainerAllocator to choose how to order
resource request according to priorities.




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