# Sumo Logic: Major incident: Problem with CSE APIs, CSE UI, Data Indexing, Metrics Alerting, Metrics Collection and Tracing Collection in North America 1 (US1)

**Summary:** Sumo Logic reported a major degradation in North America 1 (US1) from 2026-05-08 01:27 UTC to 2026-05-08 04:05 UTC, lasting 2 h 37 min. A cloud provider availability-zone failure caused log, metrics and tracing delays, CSE UI slowness and API latency or errors; raw data ingestion continued. Normal operation was restored. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-05-08 01:27 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/jl5dvnh7nkfy](https://stspg.io/jl5dvnh7nkfy)
- [Company: Sumo Logic](https://rewindex.com/company/sumo-logic.md)
- Versions: before (none: first archived) → after incident\_version:292/frdt098r0gxc@ddda8ef3e078
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Problem with CSE APIs, CSE UI, Data Indexing, Metrics Alerting, Metrics Collection and Tracing Collection in North America 1 (US1)
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-05-08 01:27 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-05-08 04:05 UTC
```

**6. Added: Affected components**

```diff
+ Cloud SIEM APIs, Cloud SIEM UI, Data Indexing, Metrics Alerting, Metrics Collection, North America 1 (US1) - CSE APIs, North America 1 (US1) - CSE UI, North America 1 (US1) - Data Indexing, North America 1 (US1) - Metrics Alerting, North America 1 (US1) - Metrics Collection, North America 1 (US1) - Tracing Collection, Tracing Collection
```

**7. Added: Update** (identified) · 2026-05-08 01:27 UTC

```diff
+ We have identified a failure of a cloud provider's availability zone as the source of the issue affecting CSE APIs, CSE UI, Data Indexing, Metrics Alerting, Metrics Collection and Tracing Collection. The symptoms are: latency in processing and displaying log data, latency in processing and displaying metrics data, latency in processing and displaying tracing data, UI slowness, latency or errors communicating with API. We are working on a fix for the problem and switching traffic off of the affected infrastructure.
```

**8. Added: Update** (monitoring) · 2026-05-08 02:21 UTC

```diff
+ Data Indexing, Tracing Ingestion, CSE UI, and CSE APIs have been restored. Metrics Ingestion and Metrics Alerting are recovering but not yet fully operational. Collection is not impacted — raw data continues to be ingested — however, there may be delays before it is available to search.
```

**9. Added: Update** (resolved) · 2026-05-08 04:05 UTC

```diff
+ We are no longer seeing issues with Metrics Alerting and Metrics Ingestion and normal operation has been restored at this time.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-05-08 01:27 UTC | Major incident: Problem with CSE APIs, CSE UI, Data Indexing, Metrics Alerting, Metrics Collection and Tracing Collection in North America 1 (US1) (this change) | degradation |

All Sumo Logic changes: [timeline](https://rewindex.com/company/sumo-logic/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/i32ae2ad87c70f8 · Markdown: https://rewindex.com/change/i32ae2ad87c70f8.md · JSON: https://rewindex.com/api/v1/changes/i32ae2ad87c70f8 · Generated 2026-10-18T02:29:20.179Z