During an NSX upgrade of ESXi host transport nodes, the upgrade process stalls or fails at approximately 60% completion.
Error: "Heartbeating between NSX management node and host [Host-UUID] is down."
VMware NSX 4.x
ESXi 7.x or 8.x
High host uptime can lead to stale processes. When the upgrade attempts to restart the MPA or proxy services, they may fail to check in with the Manager within the allotted timeout window.
A temporary connectivity during the VIB installation can break the heartbeat tunnel between the ESXi host and the NSX Manager.
Method 1:
Log in to the affected ESXi host via SSH using the root user.
Restart the ESXi management services by executing the following command: #services.sh restart
Method 2:
If restarting the services does not clear the error, use the NSX Manager’s built-in "Resolve" feature to force a re-synchronization of the management plane.
In the NSX Manager UI, go to System > Fabric > Nodes > Host Transport Nodes.
Locate the host showing the failure and click on the "Configuration Failed" or "Node Message" link to open the error dialog.
In the "Select Errors to Resolve" pop-up, locate the specific error: "Heartbeating between NSX management node and host... is down".
Click the checkbox next to the heartbeat error > Click the 'Resolve' button at the bottom of the window.