Zhiyuan Yang created TEZ-3654:
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Summary: CartesianProduct edge won't work with GroupInputEdge
Key: TEZ-3654
URL: https://issues.apache.org/jira/browse/TEZ-3654
Project: Apache Tez
Issue Type: Sub-task
Reporter: Zhiyuan Yang
Assignee: Zhiyuan Yang
If a vertex group is used as source of cartesian product, it expands into
multiple vertices that share the same edge properties and each CP edge is taken
as individual cartesian product source by CP vertex manager. CP vertex manager
will find there are more CP edge than expected and abort the AM.
Ideally group edge semantic should be fixed: both task and vertex manager
should see same number of sources; also not every edge can be simply duplicated.
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