Monitoring Impala catalog
You can monitor Impala catalogd from Grafana.
In the list of Impala dashboards, and select Impala - Catalog.
The number of databases and tables appear.
Select a Name Space, and from the Last 24 hours dropdown, select an time
interval to monitor.
View catalog memory usage, container memory usage, cpu usage, JVM heap usage,
and cumulative JVM garbage collection time.
Scroll down, and view remote procedure call metrics.
Scroll down, and view Impala statestore metrics.
Scroll down, and view update, memory, and CPU metrics.