Locator will be in hung state, but in gemfire management console, able to see locator health status is up and running.
Tanzu GemFire
Tanzu GemFire Management Console
The GMC UI displays a 'Ready' status provided there are no alerts present in the output of the describe member --verbose command.
If the command returns any alerts within the member details, the UI replaces the 'Ready' status with Check Alerts.
It is important to note that the UI does not utilize a 'Healthy' status, it strictly reflects the real-time data received from the member description command.
Since the GMC status is a reflection of the describe member command, you must use the GemFire Shell (gfsh) to see the raw alert text.
Connect to the cluster via gfsh.
Run the following command.
describe member --name=value --verbose
https://techdocs.broadcom.com/us/en/vmware-tanzu/data-solutions/tanzu-gemfire/10-1/gf/tools_modules-gfsh-command-pages-describe.html#topic_D62F3D42B1D84CF68F03D54D5122806A