In productionProbeginnerFleet cohort
Only one warehouse loses navigation
Identify the shared difference before changing global DDS settings.
Pairs with Fleet incident response in Production ROS Operations. Read the concept first, then diagnose it here.
Unlock this lab with ProOperator report
All robots at Warehouse B lose remote graph discovery; Warehouse A remains healthy.
Ubuntu 24.04, ROS 2 Jazzy, Cyclone DDS, containers, systemd, OpenTelemetry fleet sandbox
System boundary
Trace only the relevant path.
site configuration cohortfirewall policyfleet DDS discovery
How this lab works
You diagnose it — no command list.
Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you — finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.
Verification
Your repair must pass more than the visible symptom.
- Warehouse B discovery returns
- Other inbound traffic remains blocked
- Hidden regression behavior
- Root cause explanation