Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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1.1.3, 1.2.0
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None
Description
When creating the TaskDeploymentDescriptor we extract information from the ExecutionGraph which is defined job-wide and from the ExecutionJobVertex which is defined operator-wide. The extracted information will be serialized for every subtask even though it stays the same.
As an improvement, we can serialize this information once and give the serialized byte array to the TaskDeploymentDescriptor. This will reduce the serialization work Flink has to do when deploying sub tasks.
