Hitesh Shah created TEZ-1647:
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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
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