# Pusher: Critical incident: We are experiencing a major outage in our US2 cluster

**Summary:** Pusher’s critical US2 outage affected most traffic, including Channels presence channels, REST API, Webhooks and WebSocket client API. It started at 2024-09-08 18:00 UTC and was resolved at 2024-09-08 23:06 UTC, lasting 5 h 5 min. Pusher reported deploying a fix and restoring services; no cause was specified. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2024-09-08 18:00 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/34c6r6hg4lv2](https://stspg.io/34c6r6hg4lv2)
- [Company: Pusher](https://rewindex.com/company/pusher.md)
- Versions: before (none: first archived) → after incident\_version:201/mvrp3y0d9cvs@9cc2b3b26cb8
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ We are experiencing a major outage in our US2 cluster
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2024-09-08 18:00 UTC
```

**5. Added: Resolved time**

```diff
+ 2024-09-08 23:06 UTC
```

**6. Added: Affected components**

```diff
+ Channels presence channels, Channels REST API, Channels Webhooks, Channels WebSocket client API
```

**7. Added: Update** (investigating) · 2024-09-08 18:00 UTC

```diff
+ We are investigating what is causing the issue to our US cluster.
```

**8. Added: Update** (investigating) · 2024-09-08 19:31 UTC

```diff
+ We are escalating the current issue from a partial outage to a major outage. The majority of traffic in the US2 cluster is currently affected. Our team is fully engaged and working to resolve the issue.
```

**9. Added: Update** (investigating) · 2024-09-08 21:19 UTC

```diff
+ Our team is still investigating the issue within our infrastructure that is preventing us from adding WebSocket capacity to the US2 cluster. This issue is specifically impacting our WebSocket deployments. The majority of clients are currently unable to connect using WebSocket. However fallback mechanisms (SockJS, HTTP streaming, and HTTP polling) are available for connection if they are not disabled in your configuration.
```

**10. Added: Update** (monitoring) · 2024-09-08 22:19 UTC

```diff
+ The team has been able to identify the issue and push a fix. We are seeing a full recovery of the services. We will continue to monitor.
```

**11. Added: Update** (monitoring) · 2024-09-08 22:21 UTC

```diff
+ A fix has been implemented, and we are monitoring the results. WebSocket connections should now be functional.
```

**12. Added: Update** (monitoring) · 2024-09-08 23:05 UTC

```diff
+ We are continuing to monitor for any further issues.
```

**13. Added: Update** (resolved) · 2024-09-08 23:06 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2024-09-08 18:00 UTC | Critical incident: We are experiencing a major outage in our US2 cluster (this change) | outage |

All Pusher changes: [timeline](https://rewindex.com/company/pusher/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i0641f2fa426791 · Markdown: https://rewindex.com/change/i0641f2fa426791.md · JSON: https://rewindex.com/api/v1/changes/i0641f2fa426791 · Generated 2026-10-18T02:28:38.494Z