# GitHub: GitHub Enterprise Importer (GEI) is experiencing degraded throughput

> GitHub status incident “GitHub Enterprise Importer (GEI) is experiencing degraded throughput” on 2025-05-16: impact minor (vendor’s label), 13 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/github/incidents/71tl7pkqysgw
Last updated: 2025-05-17T02:27:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-05-16 13:46 UTC · Resolved: 2025-05-17 02:27 UTC · Duration: 13 h
- Updates: 1
- [Vendor status page: https://www.githubstatus.com/incidents/71tl7pkqysgw](https://www.githubstatus.com/incidents/71tl7pkqysgw)
- [Company: GitHub](https://rewindex.com/company/github.md)

## Timeline of updates

- **resolved** 2025-05-17 02:27 UTC: Between May 16, 2025, 1:21 PM UTC and May 17, 2025, 2:26 AM UTC, the GitHub Enterprise Importer service was degraded and experienced slow processing of customer migrations. Customers may have seen extended wait times for migrations to start or complete. This incident was initially observed as a slowdown in migration processing. During our investigation, we identified that a recent change aimed at improving API query performance caused an increase in load signals, which triggered migration throttling. As a result, the performance of migrations was negatively impacted, and overall migration duration increased. In parallel, we identified a race condition that caused a specific migration to be repeatedly re-queued, further straining system resources and contributing to a backlog of migration jobs, resulting in accumulated delays. No data was lost, and all migrations were ultimately processed successfully. We have reverted the feature flag associated with a query change and are working to improve system safeguards to help prevent similar race condition issues from occurring in the future.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by GitHub, started 2025-05-16 13:46 UTC, resolved after 13 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/github/incidents/71tl7pkqysgw
- Citation: GitHub, “GitHub Enterprise Importer (GEI) is experiencing degraded throughput” (2025-05-16 13:46 UTC). Archived by Rewindex: https://rewindex.com/company/github/incidents/71tl7pkqysgw (CC BY 4.0).
- Markdown link: `[GitHub: GitHub Enterprise Importer (GEI) is experiencing degraded throughput (2025-05-16)](https://rewindex.com/company/github/incidents/71tl7pkqysgw)`


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Canonical: https://rewindex.com/company/github/incidents/71tl7pkqysgw · Markdown: https://rewindex.com/company/github/incidents/71tl7pkqysgw.md · JSON: https://rewindex.com/api/v1/companies/github/incidents/71tl7pkqysgw · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:29:31.544Z