Hi everyone, Quick question about GroupIntoBatches.
When running on Flink, eventually it hits an unsupported exception "Canceling a timer by ID is not yet supported." on this line [1]. The source inputs are AVRO files for testing (batch) but will use kafka topics (streaming) when deployed. This happens when the batch is filled (10 items) and the max buffering time timer needs to be cancelled. Anyone else observed this issue? On a related note. Looks like the FlinkStatefulDoFnFunction [2] uses InMemoryTimerInternals. Curious why is FlinkTimerInternals not used? I would guess there's a difference between batch and streaming requirements? Thank you, Cristian [1] https://github.com/apache/beam/blob/b87f1f01197a78d60fb08a0ee7a4ef96bc4e08eb/runners/core-java/src/main/java/org/apache/beam/runners/core/InMemoryTimerInternals.java#L157 [2] https://github.com/apache/beam/blob/b87f1f01197a78d60fb08a0ee7a4ef96bc4e08eb/runners/flink/src/main/java/org/apache/beam/runners/flink/translation/functions/FlinkStatefulDoFnFunction.java#L136 [3] https://github.com/apache/beam/blob/b87f1f01197a78d60fb08a0ee7a4ef96bc4e08eb/runners/flink/src/main/java/org/apache/beam/runners/flink/translation/wrappers/streaming/DoFnOperator.java#L1314
