Do you use Tez session pool along with LLAP (as Thai suggests in the
previous reply)? If a new query finds an idle AM in Tez session pool, there
will be no launch cost for AM. If no idle AM is found or if you specify a
queue name, a new AM should start in order to serve the query. This is
explained
The best approach would be to use a demonized containers such as Hive LLAP
+ Tez session pool or Spark on Hive.
I’m not that familiar with Spark on Hive so I can’t comment on it but Hive
on LLAP has worked really well for me when coupled with Tez session pool.
You’ll have to specify how many Tez A
