⚠️ GitHub Status Report: Pull Request & Issue Disruptions

Date: Wednesday, August 12, 2026

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🛠 Incident Report: Pull Requests and Issues

Status: Investigating $\rightarrow$ Status: Resolved ✅

Final Note: The issue has been fully resolved. GitHub appreciates the community's patience. A comprehensive root cause analysis (RCA) will be published shortly.

📉 Incident Timeline (UTC)

• 16:16 UTC | Investigating: Initial reports of performance degradation for Pull Requests and Issues.
• 16:24 UTC | Update: Users reporting 500 Internal Server Errors when accessing issue and PR pages. Engineering suspected a database infrastructure failure.
• 16:35 UTC | Monitoring: Mitigation steps were implemented; performance began to stabilize.
• 16:38 UTC | Update: The technical cause was pinpointed. A database index hint was pointing to an index that no longer existed due to a recent migration.
  • Technical Logic: $\text{Query} \rightarrow \text{Index Hint} \rightarrow \text{Missing Index} = \text{Failure}$
  • Action taken:

    -- Problematic configuration disabled
    SET DISABLE_INDEX_HINT = TRUE;
    

• 16:41 UTC | Resolved: Services have recovered.

📋 Summary of Impact

• Issues
• Pull Requests
• Search (GitHub.com)

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