@vinita goyal 1. Please login to ambari UI by hitting http://127.0.0.1:8080 2. Enter username - admin and password - admin 3. In the left pane you can find Ambari Metrics service name 4. Select Ambari Metrics 5. On the top right under service action, you can start/stop/restart ambari metrics Please refer below screenshot ... View more

I don't have a ton of experience with Llama, but I think the misunderstanding here is that Impala manages the execution of its own queries, and the MapReduce framework manages the execution of Hive queries. YARN manages resources for individual MapReduce jobs, and it can manage the Impala daemons via Llama. The YARN application for Llama will run as long as Impala does - that's by design to keep the latency of Impala queries very low. In the case of Hive, YARN will manage the job's resources only until that job (a single query) is finished. Not sure why your Hive queries would not be running. If this is in the QuickStart VM, my first guess would be that if Llama is still running and there aren't enough executors / slots for your Hive queries. YARN in the QuickStart VM is not going to be configured with a lot of capacity and it's not tested with Llama. I know of no other way to manage Impala resources via YARN, though. ... View more