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From "Rajesh Balamohan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-3755) Capture distanceFromRoot and high/low priorities for the vertex in ATS
Date Fri, 09 Jun 2017 11:02:18 GMT
Rajesh Balamohan created TEZ-3755:
-------------------------------------

             Summary: Capture distanceFromRoot and high/low priorities for the vertex in ATS
                 Key: TEZ-3755
                 URL: https://issues.apache.org/jira/browse/TEZ-3755
             Project: Apache Tez
          Issue Type: Improvement
            Reporter: Rajesh Balamohan


Currently {{distanceFromRoot}} is only available in info log. Scheduler does not provide much
info on the high/low priority of the vertices. It would be good to capture these info in ATS,
so that Tez-UI can render it in DAG details page.  This will help in understanding whether
some vertices should have been scheduled earlier than the other in complex DAG.

Vertex distanceFromRoot is computed as a part of {{SourceVertexStartedTransition}}; it may
not be directly compute this at the time of generating the dot file in DAGAppMaster.



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