Latency issues across a number of services
Summary
On July 23, 2026, between 07:08 and 09:39 UTC, several services experienced delays: 8% of actions workflow runs experienced an average run start delay of 10 minutes, 5% of webhook deliveries exceeded SLO, and code scanning, repos, notifications, issues and pull requests experienced increased latency over the life of the incident. <br /><br />The root cause of the incident was a node of our background job processing system which did not recover after entering scheduled host maintenance. The i
Impact
major
Timeline
[investigating] We are investigating reports of degraded availability for Actions, Issues and Webhooks
via statuspage[investigating] Pull Requests is experiencing degraded performance. We are continuing to investigate.
via statuspage[investigating] We're currently investigating latency across multiple services. This can show as Actions jobs taking longer to start, Issues search serving stale results, and other listed services being similarly impacted.
via statuspage[investigating] The degradation affecting Issues has been mitigated. We are monitoring to ensure stability.
via statuspage[investigating] The degradation affecting Actions has been mitigated. We are monitoring to ensure stability.
via statuspage[investigating] We identified the source of latency affecting multiple services and applied a fix. Issues and Actions are recovering, and remaining affected services are seeing improvement as processing backlogs clear. We are actively monitoring recovery across all services.
via statuspage[investigating] The degradation affecting Pull Requests has been mitigated. We are monitoring to ensure stability.
via statuspage[investigating] Webhooks is operating normally.
via statuspage[monitoring] The degradation has been mitigated. We are monitoring to ensure stability.
via statuspage[resolved] This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
via statuspage[resolved] On July 23, 2026, between 07:08 and 09:39 UTC, several services experienced delays: 8% of actions workflow runs experienced an average run start delay of 10 minutes, 5% of webhook deliveries exceeded SLO, and code scanning, repos, notifications, issues and pull requests experienced increased latency over the life of the incident. <br /><br />The root cause of the incident was a node of our background job processing system which did not recover after entering scheduled host maintenance. The incident was mitigated by identifying the problematic shard and restoring its correct state, after which queue backlogs drained and services recovered. <br /><br />To speed mitigation, we have added monitors for nodes in this unhealthy state after maintenance operations. To prevent future recurrence, we are adapting our lifecycle automation to verify host rejoin after a scheduled reboot.
via statuspageLessons Learned
⚠GitHub has experienced 127 incidents in the past year. This frequency suggests systemic reliability challenges that may warrant additional monitoring.
📊Incidents related to api, capacity have occurred 865 times across all providers in the past year. This is one of the most common failure categories in cloud infrastructure.
💡This incident is categorized as: Capacity Issue, API Issue. Consider implementing preventive measures specific to this failure category.
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