BREAKING: Supabase Postgres Change Subscriptions Issue Identified — Workarounds Available

Supabase experiencing elevated errors on Postgres real-time subscriptions. Impact assessment and immediate workarounds inside.

Incident Summary

Supabase is currently experiencing elevated errors on Postgres change subscriptions affecting real-time functionality. This impacts applications relying on real-time data syncing through Supabase's PostgreSQL integration.

What's Down

Affected Services:

Real-time Postgres change event subscriptions

Live data synchronization features

Applications using .on('*', callback) listeners on database tables

Realtime channel subscriptions tied to database changes

Scope: The issue appears isolated to the change subscription layer; standard REST API and direct Postgres connections may continue functioning normally.

How to Check If You're Affected

1. Monitor your logs for WebSocket connection errors or subscription timeout messages 2. Check real-time listeners — if callbacks aren't firing on database updates, you're affected 3. Test with Supabase Dashboard — attempt to create a real-time subscription in the Realtime Playground 4. Monitor Supabase Status Page at status.supabase.com for official updates

Immediate Workarounds

Short-term Solutions

1. Polling Strategy

Replace real-time subscriptions with periodic polling using setInterval() and standard queries

Query your table every 5-30 seconds depending on your tolerance

Less elegant but functional for critical operations

```javascript setInterval(async () => { const { data } = await supabase.from('table_name').select('*'); // Handle updated data }, 10000); ```

2. Disable Real-time Temporarily

Remove .on() listeners and rely on manual select() queries

Trigger data refreshes on user actions rather than automatic updates

3. Use REST API Webhooks

Configure database webhooks to POST to your backend on changes

Your backend can then notify clients via REST endpoints or WebSocket

4. Switch to HTTP Long-Polling

Implement client-side long-polling as a fallback mechanism

Less efficient but more stable during outages

Alternatives to Consider

Firebase Realtime Database — if you need temporary failover

PlanetScale with polling — standard MySQL with scheduled refresh

Self-managed PostgreSQL with pg_notify — for applications that can tolerate infrastructure complexity

Redis Pub/Sub layer — add a caching layer for real-time-like behavior

What NOT to Do

Don't aggressively retry subscriptions in tight loops (this may worsen the issue)

Don't switch databases mid-session without proper failover logic

Don't assume standard Postgres connections are affected

Next Steps

1. Check status.supabase.com for official incident timeline 2. Implement polling fallback immediately if real-time is mission-critical 3. Monitor error rates in your application logging 4. Subscribe to Supabase status updates for resolution timeline

Supabase engineering is actively investigating. Updates expected within 1-4 hours based on typical incident response times. This appears to be infrastructure-level rather than requiring application changes, so resolution shouldn't require code modifications once services stabilize.