Configuring Impala coordinator shutdown
To optimize resource utilization, you need to know how to configure Impala coordinators to automatically shutdown during idle periods. You need to know how to prevent unnecessary restarts. Monitoring programs that periodically connect to Impala can cause unnecessary restarts.
- Update impyla, jdbc, impala shell clients if used to connect to Impala.
- Follow instructions for "Creating a Virtual Warehouse".
- Select a size for the Virtual Warehouse.
Select the Disable AutoSuspend option.
The Impala coordinator does not automatically shutdown unless the Impala executors are suspended.
Select the Allow Shutdown of Coordinator option.
After Impala executors have been suspended, the Impala coordinator waits for the time period specified by the
Trigger Shutdown Delaybefore shutting down.
For example, if
AutoSuspend Timeout= 300 seconds and
Trigger Shutdown Delay=150 seconds, after 300 seconds of inactivity Impala executors suspend, and then 150 seconds later, the Impala coordinator shuts down.
Accept default values for other settings, or change the values to suit your use
case, and click Create Virtual Warehouse.
Click the tooltip for information about a setting.