ARCHIVED OFFICIAL INCIDENT

Incident with Pull Requests and Issues

GitHub · Last saved provider status: resolved

Current service report →
This is historical evidence.

The last saved event status is not the current service status. Source lists can be incomplete, and disappearance from a source does not confirm recovery. Open the current report or the official source for newer evidence.

Saved event details

Provider status
resolved
Provider impact
minor
Provider record created
12 Aug 2026, 16:16:18 UTC
Provider record updated
18 Aug 2026, 15:52:05 UTC
Explicit provider start
12 Aug 2026, 16:16:17 UTC
Explicit provider end
12 Aug 2026, 16:41:18 UTC

Affected components reported by the provider

  • Pull Requests hhtssxt0f5v2
  • Issues kr09ddfgbfsf

These associations describe this event’s reported scope. They do not establish current component availability or verified dependencies.

A record creation time is not necessarily an outage start. Unreported times remain unavailable. We do not calculate downtime from collection times.

Provider updates in saved revisions

Latest first. We show up to 100 distinct updates from the latest 20 saved content revisions. Revised wording at the same provider time is retained separately.

  1. resolved

    Between 16:03 and 16:29 UTC on August 12, some users encountered errors when viewing pull requests, issues, and search results. During this period, about 1.9% of Pull Request requests and 0.9% of Issues requests failed. During a database migration, two indexes were removed while application settings still referenced them, causing affected requests to fail. We detected the issue after the migration reached one database shard and before it progressed to the remaining shards. We restored service by disabling both settings. We are improving safeguards around database migrations and application configuration to prevent similar mismatches from causing errors.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  2. monitoring

    We identified the source of errors affecting Pull Requests, Issues, and Search on GitHub.com and have applied a mitigation. A database index hint was referencing an index that had been removed by a recent migration, causing query failures for some users. We disabled the problematic configuration and are seeing recovery across affected services. We are continuing to monitor to confirm full resolution.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  3. monitoring

    The degradation affecting Issues and Pull Requests has been mitigated. We are monitoring to ensure stability.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  4. investigating

    We are investigating reports of errors affecting Pull Requests and Issues on GitHub.com. Some users may encounter 500 errors when loading pull request and issue pages. Our engineering teams are actively investigating the root cause, which appears to be related to a database infrastructure issue. We will provide an update as soon as we have more information.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  5. investigating

    We are investigating reports of degraded performance for Issues and Pull Requests

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC