Disruption with some GitHub services
Incident
Report for GitHub
Resolved
On August 19, 2025, between 13:35 UTC and 14:33 UTC, GitHub search was in a degraded state. When searching for pull requests, issues, and workflow runs, users would have seen some slow, empty or incomplete results. In some cases, pull requests failed to load.
The incident was triggered by intermittent connectivity issues between our load balancers and search hosts. While retry logic initially masked these problems, retry queues eventually overwhelmed the load balancers, causing failure. The incident was mitigated at 14:33 UTC by throttling our search index pipeline.
Our automated alerting and internal retries reduced the impact of this event significantly. As a result of this incident we believe we have identified a faster way to mitigate it in the future. We are also working on multiple solutions to resolve the underlying connectivity issues.
The incident was triggered by intermittent connectivity issues between our load balancers and search hosts. While retry logic initially masked these problems, retry queues eventually overwhelmed the load balancers, causing failure. The incident was mitigated at 14:33 UTC by throttling our search index pipeline.
Our automated alerting and internal retries reduced the impact of this event significantly. As a result of this incident we believe we have identified a faster way to mitigate it in the future. We are also working on multiple solutions to resolve the underlying connectivity issues.
Update
Actions is operating normally.
Update
Issues is operating normally.
Update
We were able to mitigate the slowness by throttling some search indexing and will work on the issues created by the increased search indexing so they do not have latency impact.
Update
We are seeing slightly elevated latency on some Issues endpoints and searches for workflow runs in Actions may not return quickly.
Update
Actions is experiencing degraded performance. We are continuing to investigate.
Update
Issues is experiencing degraded performance. We are continuing to investigate.
Update
Issues with timeouts when searching
Investigating
We are currently investigating this issue.
This incident affected: Issues and Actions.
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