Bikas Saha created TEZ-2020:
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Summary: For 1-1 edge vertex configured event may be sent
incorrectly
Key: TEZ-2020
URL: https://issues.apache.org/jira/browse/TEZ-2020
Project: Apache Tez
Issue Type: Bug
Reporter: Bikas Saha
Assignee: Bikas Saha
For a fully configured 1-1 vertex configured event will be sent after init
because the vertex manager does not signal intent to reconfigure. However a
change in parallelism upstream on the 1-1 edge can cause this vertex's
parallelism to be updated accordingly. This breaks the guarantee that
configured should be sent after vertex is fully configured. This is because
update of parallelism on 1-1 edge has until now been hard-coded in the Vertex
code. This can be removed now with the InputReadyVertexManager handling the 1-1
edge and the addition of vertex state updates. Not only will this fix the issue
but also remove the special handling for 1-1 edges in the AM which should not
be there for cleanliness.
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