Cluster Manager Troubleshooting

Here are some areas to look at when troubleshooting the Cluster Manager.

If using a version of VRED earlier than 2025.1, the Cluster Manager cannot manage renderings when using GPU Raytracing mode. Upgrading to 2025.1 will resolve this issue.

Inconsistent Frame Rate

The cluster manager updates its views periodically. During updates, there may be a drop in the frame rate. Close the cluster manager to stop updates and restore the frame rate.

Unable to Connect to a Server

Use a ping command, from a windows command shell, to see if the server is reachable.
Determine if the VREDClusterService is running on your machine.
Check your firewall settings. The cluster manager uses port 8889.
Try to stop the VREDClusterService and start it from a windows command shell. Go to the bin/WIN64 folder of the VRED installation and call VREDClusterService -e -c. Check the console for error messages.

Unable to Render on a Cluster Queue

Check that there are render nodes booked for the cluster queue.
Check that you have an extra VREDPro license for the queue host PC.
Check that the queue is not paused.

Only One GPU is Used

The booking for the render queue only requests one node. However, in some cases, two may be required, one for the head node and another for the cluster node. Therefore, increase the booking to two. If there are less nodes requested than configured in the cluster config, nodes are removed from the config to match the requested number of nodes, resulting in the ONLY the head node's GPU being used, not the rendering server's GPU.