{
  "caseId": "chat-mysql-connection-pool",
  "query": "MySQL connection pool is exhausted. How should I diagnose it?",
  "retrievedAt": "2026-07-05T00:00:00Z",
  "candidates": [
    {
      "rank": 1,
      "docId": "mysql-connection-pool",
      "title": "MySQL Connection Pool Troubleshooting",
      "breadcrumb": "Database > MySQL > Connection Pool",
      "content": "When the connection pool is exhausted, inspect HikariCP active connections, max_connections, slow SQL, leak detection, and database wait events.",
      "score": 0.86,
      "retrievalLayer": "L0+L1"
    },
    {
      "rank": 2,
      "docId": "incident-diagnosis-flow",
      "title": "Incident Diagnosis Flow",
      "breadcrumb": "AIOps > Diagnosis Flow",
      "content": "Collect evidence, compare metrics and logs, then verify remediation before closing the incident.",
      "score": 0.61,
      "retrievalLayer": "L1"
    }
  ]
}