This release of the Workload Manager service introduces the following new features:
On the dashboard for each engine, there is a new Memory Utilization widget. This widget shows you the average, minimum, and maximum amount of memeory used by the queires on the node. You can use this information to identify inefficient queries that are using unnecessary memory, and to ensure you have enough memory to continue runnining your queries.
The image below shows the Memory Utilization widget for the Impala engine.