NSX Adapter Instances status is Warning
NSX Adapter Instances shows as State: Collecting and Status: No data receiving.
NSX Adapter "Adapter instance in not receiving data" Alert happens
VMware Aria Operations 8.18
This is due to NSX-T resource collector thread being stuck.
This issue is fixed in Aria Operations 8.18.6.
Workaround:
To resolve the issue take Restart NSX Adapter
If the issue persists, please follow the steps below.
Take Cluster offline and reboot Aria Operations Appliance.
Refer to Rebooting nodes in Aria Operations