Github user HeartSaVioR commented on the issue:
https://github.com/apache/storm/pull/1844
@hmcl
I filed STORM-2264, and thought about this approach before.
This approach makes GlobalPartitionInformation serialized well, but the
type is lost when deserializing. Deserialized object is not
GlobalPartitionInformation.
I haven't deeply look into storm-kafka Trident implementation so hard to
guess how this affects.
If we're not sure, just replacing JSONValue.parseWithException to
JSONValue.parse only from TransactionalState rolls back the problem. It's just
hiding an long ago issue again so need to find out clearer way but given that
it is critical, we may need quick fix first.
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