tez-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hitesh Shah (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TEZ-1647) Issue with caching of events in VertexManager::onRootVertexInitialized
Date Wed, 08 Oct 2014 23:32:33 GMT
Hitesh Shah created TEZ-1647:
--------------------------------

             Summary: Issue with caching of events in VertexManager::onRootVertexInitialized

                 Key: TEZ-1647
                 URL: https://issues.apache.org/jira/browse/TEZ-1647
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Hitesh Shah
            Assignee: Jeff Zhang


Came across a use-case in Hive where the current functionality does not work. 

Consider a vertex with 2 inputs ( i1, i2 ):

The custom vertex manager in Hive generates events only when both i1 and i2 are initialized.


Therefore vertexManagerPlugin::onRootInitialized(i1) does nothing but for vertexManagerPLugin::onRootIniitialized(i2)
, it calls context.addEvents(i1) and context.addEvents(i2). When this happens, the events
generated for i1 never get sent to the VertexImpl to be routed to the tasks. 



  


What this implies is that
  
  





--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message