Troubleshooting

Troubleshooting
Field
Value
Distribution
WCT English — OpenC5ISR
Product
OpenC5ISR
Release
0.15.1
Deployment
openc5isr-en.wallacecorptech.com
Source
/srv/wct/releases/OpenC5ISR-v0.15.0
Evidence
Operational diagnostic standard
Source fingerprint
63d2b1097707e25d666401cdc6362e395968600a40a08690210cd8c0b75fbf50
Status
Generated baseline — human review required
Verification boundary: This page combines platform design guidance with static evidence from the release. It does not prove that every detected interface is enabled, reachable, secure, or operational in the deployed environment.
Diagnostic sequence
State the exact user-visible symptom, start time, scope and last known good state.
Check DNS/routing/time before assuming an application defect.
Check process/container state and recent logs.
Test the backend locally on its bound address/port.
Test proxy/TLS path and WebSocket upgrade separately.
Test dependencies: database, OpenBus, OpenKnowledge, OpenFiles and external services.
Reproduce one primary workflow with correlation identifiers and capture evidence.
Apply the smallest reversible change, then retest all layers.
Symptom matrix
Symptom
Likely layer
First checks
Connection refused
Process/socket
systemctl status, 
ss -lntup, local curl
Empty response/reset
App/upstream crash or protocol mismatch
Application logs, internal HTTP response, proxy protocol.
502/504
Reverse proxy/upstream
nginx -t, error log, 
proxy_pass, backend latency
Page loads but live data fails
WebSocket/CORS/auth
Browser network console, upgrade headers, token/role, route base.
Wrong distribution/branding
Nginx/service instance
Hostname routing, service unit, current release symlink, environment.
Tracks/tasks/products missing
Dependency/data flow
Producer logs, OpenBus/API, authorization, semantic type, time window.
Intermittent correlation error
Time/PNT/data quality
Clock offset, source timestamps, coordinate frame and calibration.
Evidence rule
Before changing configuration, preserve the relevant logs, status output, request/response, release version and timestamps. Troubleshooting without evidence tends to become configuration roulette—with worse odds and fewer free drinks.
Maintainer Notes
Add human-reviewed deployment notes, corrections, decisions, screenshots, and links here. Content outside the generated block is preserved on future runs.