Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/3031#discussion_r97757847
--- Diff:
flink-connectors/flink-connector-kafka-base/src/main/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaConsumerBase.java
---
@@ -101,7 +101,7 @@
* The assigner is kept in serialized form, to deserialize it into
multiple copies */
private SerializedValue<AssignerWithPunctuatedWatermarks<T>>
punctuatedWatermarkAssigner;
- private transient ListState<Tuple2<KafkaTopicPartition, Long>>
offsetsStateForCheckpoint;
+ private transient ListState<Tuple2<KafkaTopicPartition, Tuple2<Long,
Long>>> offsetsAndWatermarksStateForCheckpoint;
--- End diff --
I think we should switch to have a specific checkpointed state object
instead of continuing to "extend" the original Tuple. This will also be helpful
for compatibility for any future changes to the checkpointed state.
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