Hi Tez devs, The current design of VertexInitializedEvent<https://github.com/apache/tez/blob/3f2373e2b2ab3825ef50e9f19b8704265542a8b2/tez-dag/src/main/java/org/apache/tez/dag/history/events/VertexInitializedEvent.java> contains all of the InputDataInformationEvents for a particular vertex. We've had trouble scaling this for large vertices as Protobuf limits message sizes to 64 MB. I'm wondering if anyone is working on a more scaleable solution, and if not, if you guys have any suggestions for how to decompose this event into smaller events so that Protobuf's message size limit is never an issue.
Thanks, Eric
