# Iterable: Customers on c102 are experiencing degraded performance

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-03-17 18:07 UTC · Resolved: 2026-03-17 19:21 UTC · Duration: 1.2 h
- Updates: 4 · Affected components: Cluster 102 - User Deletions, User Deletions, Cluster 102 - User Updates, User Updates, Cluster 102 - Email Sends, Email Sends, Cluster 102 - Journey Processing, Journey Processing, Cluster 102 - Push Sends, Push Sends, Cluster 102 - List Updates, List Updates, Cluster 102 - SMS Sends, SMS Sends
- [Vendor status page: https://stspg.io/217vzymwgb25](https://stspg.io/217vzymwgb25)
- [Company: Iterable](https://rewindex.com/company/iterable.md)

## Timeline of updates

- **investigating** 2026-03-17 18:07 UTC: We are currently investigating an issue for one of ES clusters - c102 - The cluster is in a red state, leading to very slow ingestion and widespread API 500 errors. Customers are experiencing failed searches and errors on multiple API endpoints. Ingestion rates are near zero, with lag up to 20 minutes and increasing for internal, realtime, and bulk data pipelines.
- **investigating** 2026-03-17 18:43 UTC: Engineering is continuing to investigate this issue.  At this time there is no improvement yet to any customers on C102.  Next Update at 12:15 PDT or sooner.
- **monitoring** 2026-03-17 19:00 UTC: Engineering has restored C102 back to a "green" state and ingestion and API calls are succeeding again for this cluster.  We will continue to monitor until we are fully through the accumulated backlog.  Next update at 1 PM PDT or sooner.
- **resolved** 2026-03-17 19:21 UTC: We have fully caught up with any backlog on C102 and all queries and activity through C102 are functioning normally.  If you continue to experience any issues please contact Support.


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Canonical: https://rewindex.com/company/iterable/incidents/031mlvpmrtmb · Markdown: https://rewindex.com/company/iterable/incidents/031mlvpmrtmb.md · JSON: https://rewindex.com/api/v1/companies/iterable/incidents/031mlvpmrtmb · Generated 2026-10-18T09:34:50.916Z