Runbook: Matchmaking outage

Symptoms

• queue times spike
• teleports fail
• parties can’t join matches

Checks

• current release version and recent promotions
• MemoryStore health (queue TTLs, errors)
• Teleport failures (rate limits, bad reserved server flow)

Mitigation

• disable ranked queue
• fall back to casual queue
• reduce queue complexity (no backfill)

Rollback criteria

• error rates continue rising after mitigation
• widespread teleport failures persist

Follow-up

• add canary alerts for queue health
• add automated rollback triggers