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Posted to dev@ambari.apache.org by "Laurent EDEL (JIRA)" <ji...@apache.org> on 2015/01/10 01:30:34 UTC

[jira] [Created] (AMBARI-9080) capacity scheduler UI

Laurent EDEL created AMBARI-9080:
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             Summary: capacity scheduler UI
                 Key: AMBARI-9080
                 URL: https://issues.apache.org/jira/browse/AMBARI-9080
             Project: Ambari
          Issue Type: Wish
          Components: ambari-web
            Reporter: Laurent EDEL


Capacity scheduler is widely used in Hadoop clusters.

Its configuration is as much easy to understand as complicated to define, consisting as filling a XML with some "ahem" notions :

- "all" rights are represented by "*" (normal) but "no" rights are represented by " "
- ACLs works only by extending them, not reducing : if root queue is set to all (default), no ACL will be considered at all

A UI should be provided to abstract those concepts, as well as define more easily the queues weights, using sliders

Additionally, if you forget to check yarn.acl.enabled in the resourcemanager there should be a warning about scheduler ACL rules



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