# RudderStack: Delay in data processing pipeline in US region

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-05-08 00:33 UTC · Resolved: 2026-05-08 02:57 UTC · Duration: 2.4 h
- Updates: 9 · Affected components: Data Processing Pipeline - Data Processing Pipeline (US), Data Processing Pipeline (US), Warehouses
- [Vendor status page: https://stspg.io/p7dv5d2kl13l](https://stspg.io/p7dv5d2kl13l)
- [Company: RudderStack](https://rewindex.com/company/rudderstack.md)

## Timeline of updates

- **investigating** 2026-05-08 00:33 UTC: We are currently investigating an issue on our data processing pipeline due to an EC2 instance availability issue in the US region.
- **investigating** 2026-05-08 00:43 UTC: We are investigating instance impairments in a single Availability Zone (use1-az4) in the US-EAST-1 Region.
- **investigating** 2026-05-08 01:04 UTC: We are still investigating the issue.
- **investigating** 2026-05-08 01:31 UTC: We are moving some workloads away from the problematic availability zone in AWS.
- **identified** 2026-05-08 01:51 UTC: We are actively working on a solution to the issue.
- **identified** 2026-05-08 01:57 UTC: We are continuing to work on a fix for this issue.
- **identified** 2026-05-08 02:12 UTC: Enterprise customers are not affected by this issue. The team is working on the issue for Free, Starter and Growth customers.
- **monitoring** 2026-05-08 02:32 UTC: Event processing has been resumed for Free, Starter and Growth customers, we are monitoring the pipeline's health.
- **resolved** 2026-05-08 02:57 UTC: This incident has been resolved.


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Canonical: https://rewindex.com/company/rudderstack/incidents/4n39ldj9k2c9 · Markdown: https://rewindex.com/company/rudderstack/incidents/4n39ldj9k2c9.md · JSON: https://rewindex.com/api/v1/companies/rudderstack/incidents/4n39ldj9k2c9 · Generated 2026-10-18T10:29:27.437Z