Dawid Wysakowicz created FLINK-13876:
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Summary: Remove ExecutionConfig field from PojoSerializer
Key: FLINK-13876
URL: https://issues.apache.org/jira/browse/FLINK-13876
Project: Flink
Issue Type: Improvement
Components: API / Type Serialization System
Affects Versions: 1.9.0, 1.8.1, 1.7.2
Reporter: Dawid Wysakowicz
Fix For: 1.10.0
The PojoSerializers stores an instance of ExecutionConfig as internal field,
even though that the only information it may ever need are the registered kryo
serializers.
This has a few drawbacks:
* It blocks the evolution of {{ExecutionConfig}} as serializers where stored in
a state. Therefore any change to ExecutionConfig must be backwards compatible
in respect to java serialization
* It probably already introduced a bug, as upon restore the Snapshot actually
recreates the serializer with an empty ExecutionConfig (see
org.apache.flink.api.java.typeutils.runtime.PojoSerializerSnapshot#restoreSerializer)
I suggest to remove the field completely and adjust corresponding usages.
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