Tzu-Li (Gordon) Tai created FLINK-6853:
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Summary: Migrating from Flink 1.1 fails for FlinkCEP
Key: FLINK-6853
URL: https://issues.apache.org/jira/browse/FLINK-6853
Project: Flink
Issue Type: Bug
Components: CEP
Affects Versions: 1.3.0
Reporter: Tzu-Li (Gordon) Tai
Assignee: Tzu-Li (Gordon) Tai
Migrating from Flink 1.1 fails for CEP, since in 1.1, the legacy
{{MultiplexingStreamRecordSerializer}} is used for stream elements in the
serialized priority queue (via the {{PriorityQueueSerializer}}).
In newer versions, the {{StreamElementSerializer}} is used instead. For this to
work, we need to implement the compatibility methods for
{{StreamElementSerializer}} such that it is also compatible with configuration
snapshots taken from the {{MultiplexingStreamRecordSerializer}}.
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