I’m running a Docker Swarm cluster with 13 nodes (some managers, some workers). I deployed a stack (uptrace) with several services, including a global service:

services:
  uptrace_cadvisor:
    image: container.my_Domain/ghcr/google/cadvisor:0.56.2
    deploy:
      mode: global
      restart_policy:
        condition: on-failure
    networks:
      - uptrace_back
networks:
  uptrace_back:
    driver: overlay

However, this global service does not deploy on all nodes — only on 10 out of 13. The missing nodes are .37, .38, .45 (for example).

Observations:

On worker nodes, the containers are in Created state:

docker ps -a | grep uptrace
31043c3c9261   container.my_Domain/ghcr/google/cadvisor:0.56.2   "/usr/bin/entrypoint…"   2 hours ago      Created   uptrace_cadvisor.1cc9nxsdtw5dmgdpfwx5utbzb.vsdsq0k7ywu08s8s7cwlhfk1w

Logs from one of the affected nodes (mafalda) show:

level=error msg="fatal task error" error="invalid pool request: Pool overlaps with other one on this address space" module=node/agent/taskmanager node.id=1cc9nxsdtw5dmgdpfwx5utbzb service.id=shjrqkzjjld2xn451e4b0wt5q task.id=...
level=info msg="initialized VXLAN UDP port to 4789"
level=warning msg="failed to deactivate service binding for container uptrace_cadvisor ... No such container"

Overlay network inspection:

docker network inspect uptrace_back

Shows peers only on 10 nodes, missing the affected ones. Subnet used: 10.0.33.0/24. Other overlay networks exist on the cluster as well.

Networking checks (nc) on UDP ports:

nc -zvu  7946  # succeeds
nc -zvu  4789  # succeeds

All nodes can reach each other on the Swarm gossip and VXLAN ports.

The logs clearly show:

invalid pool request: Pool overlaps with other one on this address space

Question:

How can I resolve this “invalid pool request / pool overlaps” error so that global services can run on all nodes?

1. Should I recreate overlay networks with different subnets?

2. Can I fix this without removing all other running services?

3. Any recommendations for properly configuring multiple overlay networks in Swarm with many nodes?