# Dagster: Major incident: Degraded sensor and schedule evaluations

> Dagster+ reported major degradation starting 2026-10-22 20:00 UTC: agent communication problems caused sensor and schedule failures or timeouts and potentially delayed runs. Computed duration was 0 min, though the update describes impact during 20:00–20:24 UTC. Service recovered; failed ticks will r

Canonical: https://rewindex.com/change/i4f09e0d0b2004b
Last updated: 2026-10-22T20:53:52Z

**Summary:** Dagster+ reported major degradation starting 2026-10-22 20:00 UTC: agent communication problems caused sensor and schedule failures or timeouts and potentially delayed runs. Computed duration was 0 min, though the update describes impact during 20:00–20:24 UTC. Service recovered; failed ticks will resume on their next evaluation, and the root cause remains under investigation. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-10-22 20:00 UTC · Detected: 2026-10-22 20:53 UTC
- [Source: https://dagstercloud.statuspage.io/incidents/qxcg5q1zjp0k](https://dagstercloud.statuspage.io/incidents/qxcg5q1zjp0k)
- [Company: Dagster](https://rewindex.com/company/dagster.md)
- Versions: before (none: first archived) → after incident\_version:141/qxcg5q1zjp0k@97c8b07d3c44
- Change 1 of 1 for this incident

Incident page (full timeline): [Degraded sensor and schedule evaluations](https://rewindex.com/company/dagster/incidents/qxcg5q1zjp0k.md)
## What changed

**1. Added: Title**

```diff
+ Degraded sensor and schedule evaluations
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-22 20:00 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-22 20:00 UTC
```

**6. Added: Update** (resolved) · 2026-10-22 20:00 UTC

```diff
+ Between 1:00pm and 1:24pm PT (20:00–20:24 UTC), Dagster+ had trouble communicating with agents. During this window, some sensor and schedule evaluations failed or timed out, and some runs may have started late. Service has recovered. Sensors and schedules are evaluating normally, and failed ticks will resume on their next evaluation. We're monitoring and investigating the root cause.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-22 20:00 UTC | Major incident: Degraded sensor and schedule evaluations (this change) | degradation |

All Dagster changes: [timeline](https://rewindex.com/company/dagster/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._

## Cite this

Major incident: Degraded sensor and schedule evaluations on Dagster’s status page, changed 2026-10-22 20:00 UTC (change 1 of 1).

- Canonical URL: https://rewindex.com/change/i4f09e0d0b2004b
- Citation: Dagster, “Major incident: Degraded sensor and schedule evaluations” (2026-10-22 20:00 UTC). Archived by Rewindex: https://rewindex.com/change/i4f09e0d0b2004b (CC BY 4.0).
- Markdown link: `[Dagster: Major incident: Degraded sensor and schedule evaluations (2026-10-22)](https://rewindex.com/change/i4f09e0d0b2004b)`


---
Canonical: https://rewindex.com/change/i4f09e0d0b2004b · Markdown: https://rewindex.com/change/i4f09e0d0b2004b.md · JSON: https://rewindex.com/api/v1/changes/i4f09e0d0b2004b · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T18:08:03.440Z