In the Workers tab, the second column, "Host", shows the Cribl worker node name. Currently, I have some hosts with a hostname, and other hosts with hostname + domain name.
How can I change the hostname to be consistent here?
The worker node name comes directly from the hostname set on the Linux OS. If you want the worker nodes to have consistent naming, verify and set the hostname on each worker node. In most modern distributions of Linux, this can be done by running 'hostnamectl'