Sihua Zhou created FLINK-7218:
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Summary: ExecutionVertex.getPreferredLocationsBasedOnInputs() will
always return empty
Key: FLINK-7218
URL: https://issues.apache.org/jira/browse/FLINK-7218
Project: Flink
Issue Type: Bug
Components: JobManager
Affects Versions: 1.3.1
Reporter: Sihua Zhou
Assignee: Sihua Zhou
This 's a subtask of
[FLINK-7153|https://issues.apache.org/jira/browse/FLINK-7153?filter=-2].
The ExecutionVertex.getPreferredLocationsBasedOnInputs will always return
empty, cause `sourceSlot` always be null until `ExectionVertex` has been
deployed via 'Execution.deployToSlot()'. So allocate resource base on prefered
location can't work correctly, we need to set the slot info for `Execution` as
soon as Execution.allocateSlotForExecution() called successfully.
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