Hi, I just had a look at the capability matrix here: http://beam.incubator.apache.org/capability-matrix/ <http://beam.incubator.apache.org/capability-matrix/> . I really like it, as it gives a nice summary of the current state of implementation completeness for the different runners.
I had one follow-up question, regarding the cell at the intersection of the Aggregators row and the Apache Flink column, with this content: "In streaming mode, Aggregators may undercount”. Can you give me some ideas about what this means? In what circumstances might this happen? Are there some mitigation strategies that are appropriate? Thanks, Bill
