Hi, I have seen the compatibility matrix and I realize that Spark is not the most supported runner. I am curious if it is possible to run a pipeline on Spark, say with global windows, after processing triggers and group by key(CoGroupByKye, CombineByKey) . We have definitely problems to execute a pipeline that successfully runs on direct runner.
Is that a known issue? Is Flink the best option? Best Regards Artur
