Hi all, I've been using Tez on hive, and I had a chance to hear a conversation that mismatches with my present knowledge, can anyone confirm the following statement? (1)- For every TEZ AM it is possible to launch just a single query/DAG at a time. So within a given AM several DAGs can be executed only in sequential order (a.k.a. a session), not in parallel. To execute DAGs in parallel we always need several AMs. (2)- The AM is user-specific, and each user is expected to run queries through its own AM (or on multiple AMs if there is a need for parallelism). (3)- Several users can submit their DAGs as the same user (e.g.: through hiveserver2), but in this case we will still have several AM.
Thanks in advance Fabio
