node-mongodb-native/test/spec/client-backpressure/backpressure-connection-checkin.json at 6a0af2b54ceb9bfd75e16574af87ff70dbbcccf9 · mongodb/node-mongodb-native · GitHub

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{
  "description": "tests that connections are returned to the pool on retry attempts for overload errors",
  "schemaVersion": "1.3",
  "runOnRequirements": [
    {
      "minServerVersion": "4.4",
      "topologies": [
        "replicaset",
        "sharded",
        "load-balanced"
      ]
    }
  ],
  "createEntities": [
    {
      "client": {
        "id": "client",
        "useMultipleMongoses": false,
        "observeEvents": [
          "connectionCheckedOutEvent",
          "connectionCheckedInEvent"
        ]
      }
    },
    {
      "client": {
        "id": "fail_point_client",
        "useMultipleMongoses": false
      }
    },
    {
      "database": {
        "id": "database",
        "client": "client",
        "databaseName": "backpressure-connection-checkin"
      }
    },
    {
      "collection": {
        "id": "collection",
        "database": "database",
        "collectionName": "coll"
      }
    }
  ],
  "tests": [
    {
      "description": "overload error retry attempts return connections to the pool",
      "operations": [
        {
          "name": "failPoint",
          "object": "testRunner",
          "arguments": {
            "client": "fail_point_client",
            "failPoint": {
              "configureFailPoint": "failCommand",
              "mode": "alwaysOn",
              "data": {
                "failCommands": [
                  "find"
                ],
                "errorLabels": [
                  "RetryableError",
                  "SystemOverloadedError"
                ],
                "errorCode": 2
              }
            }
          }
        },
        {
          "name": "find",
          "object": "collection",
          "arguments": {
            "filter": {}
          },
          "expectError": {
            "isError": true,
            "isClientError": false
          }
        }
      ],
      "expectEvents": [
        {
          "client": "client",
          "eventType": "cmap",
          "events": [
            {
              "connectionCheckedOutEvent": {}
            },
            {
              "connectionCheckedInEvent": {}
            },
            {
              "connectionCheckedOutEvent": {}
            },
            {
              "connectionCheckedInEvent": {}
            },
            {
              "connectionCheckedOutEvent": {}
            },
            {
              "connectionCheckedInEvent": {}
            },
            {
              "connectionCheckedOutEvent": {}
            },
            {
              "connectionCheckedInEvent": {}
            },
            {
              "connectionCheckedOutEvent": {}
            },
            {
              "connectionCheckedInEvent": {}
            },
            {
              "connectionCheckedOutEvent": {}
            },
            {
              "connectionCheckedInEvent": {}
            }
          ]
        }
      ]
    }
  ]
}