Realtime Collaborative Editor
Realtime Collaborationexpert complexity
Deterministic topology derived from YAML knowledge entities. Nodes represent workloads, datastores, patterns, and risk components. Edges show typed relationships with propagation direction.
5
Components
2
Connections
1
Failure Modes
1
Propagation Paths
Max exposure: high· 1 high-risk node in this topology
Topology Graph5 nodes · 2 edges
1 high-risk nodeClick a failure mode below to trace propagation
Workload
Datastore
Cache
Event stream
Pattern
Risk node
Risk path
Failure Propagation Trace
Topology Notes
- ·WebSocket servers maintain long-lived connections to clients. They subscribe to Redis pub/sub channels for the documents their clients are editing.
- ·When a user makes an edit, the WebSocket server publishes the change to the document's Redis channel. All other WebSocket servers subscribed to that channel forward the change to their connected users.
- ·PostgreSQL stores the authoritative document state. Auto-save writes are batched (typically every 1–5s) to reduce write frequency.
- ·PgBouncer sits between WebSocket servers and PostgreSQL. Use transaction-mode pooling: WebSocket handlers typically make short database operations.
- ·Presence data (active users, cursor positions) is stored in Redis with short TTLs. It is intentionally ephemeral and not persisted to PostgreSQL.