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{
  "t": <Datetime>, // timestamp
  "s": <String>, // severity
  "c": <String>, // component
  "id": <Integer>, // unique identifier
  "ctx": <String>, // context
  "msg": <String>, // message body
  "attr": <Object> // additional attributes (optional)
  "tags": <Array of strings> // tags (optional)
  "truncated": <Object> // truncation info (if truncated)
  "size": <Object> // original size of entry (if truncated)
}

{
  "t": {
    "$date": "2020-05-01T15:16:17.180+00:00"
  },
  "s": "I",
  "c": "NETWORK",
  "id": 12345,
  "ctx": "listener",
  "msg": "Listening on",
  "attr": {
    "address": "127.0.0.1"
  }
}

{
  "t": {
    "$date": "2020-05-01T15:16:17.180+00:00"
  },
  "s": "I",
  "c": "NETWORK",
  "id": 12345,
  "ctx": "listener",
  "msg": "Listening on",
  "attr": {
    "address": "127.0.0.1"
  }
}

{
  "t": {
    "$date": "2020-05-01T15:16:17.180+00:00"
  },
  "s": "I",
  "c": "NETWORK",
  "id": 12345,
  "ctx": "listener",
  "msg": "Listening on",
  "attr": {
    "address": "127.0.0.1"
  }
}

{"t":{"$date":"2020-05-20T16:21:31.561+00:00"},"s":"I",  "c":"NETWORK",  "id":51800,   "ctx":"conn202","msg":"client metadata","attr":{"remote":"127.0.0.1:37106","client":"conn202","doc":{"application":{"name":"MongoDB Shell"},"driver":{"name":"MongoDB Internal Client","version":"4.4.0"},"os":{"type":"Linux","name":"CentOS Linux release 8.0.1905 (Core) ","architecture":"x86_64","version":"Kernel 4.18.0-80.11.2.el8_0.x86_64"}}}}

{"t":{"$date":"2020-05-20T16:33:40.595+00:00"},"s":"I",  "c":"NETWORK",  "id":51800,   "ctx":"conn214","msg":"client metadata","attr":{"remote":"127.0.0.1:37176","client":"conn214","doc":{"driver":{"name":"NetworkInterfaceTL","version":"4.4.0"},"os":{"type":"Linux","name":"CentOS Linux release 8.0.1905 (Core) ","architecture":"x86_64","version":"Kernel 4.18.0-80.11.2.el8_0.x86_64"}}}}

{
 "verbosity" : 0,
 "accessControl" : {
    "verbosity" : -1
 },
 "command" : {
    "verbosity" : -1
 },
 ...
 "storage" : {
    "verbosity" : -1,
    "recovery" : {
       "verbosity" : -1
    },
    "journal" : {
        "verbosity" : -1
    }
 },
 ...

{"t":{"$date":"2020-05-20T20:10:08.731+00:00"},"s":"I",  "c":"COMMAND",  "id":51803,   "ctx":"conn281","msg":"Slow query","attr":{"type":"command","ns":"stocks.trades","appName":"MongoDB Shell","command":{"aggregate":"trades","pipeline":[{"$project":{"ticker":1.0,"price":1.0,"priceGTE110":{"$gte":["$price",110.0]},"_id":0.0}},{"$sort":{"price":-1.0}}],"allowDiskUse":true,"cursor":{},"lsid":{"id":{"$uuid":"fa658f9e-9cd6-42d4-b1c8-c9160fabf2a2"}},"$clusterTime":{"clusterTime":{"$timestamp":{"t":1590005405,"i":1}},"signature":{"hash":{"$binary":{"base64":"AAAAAAAAAAAAAAAAAAAAAAAAAAA=","subType":"0"}},"keyId":0}},"$db":"test"},"planSummary":"COLLSCAN","cursorid":1912190691485054730,"keysExamined":0,"docsExamined":1000001,"hasSortStage":true,"usedDisk":true,"numYields":1002,"nreturned":101,"reslen":17738,"locks":{"ReplicationStateTransition":{"acquireCount":{"w":1119}},"Global":{"acquireCount":{"r":1119}},"Database":{"acquireCount":{"r":1119}},"Collection":{"acquireCount":{"r":1119}},"Mutex":{"acquireCount":{"r":117}}},"storage":{"data":{"bytesRead":232899899,"timeReadingMicros":186017},"timeWaitingMicros":{"cache":849}},"remote": "192.168.14.15:37666","protocol":"op_msg","durationMillis":22427}}

{
  "t": {
    "$date": "2020-05-20T19:17:06.188+00:00"
  },
  "s": "W",
  "c": "CONTROL",
  "id": 22120,
  "ctx": "initandlisten",
  "msg": "Access control is not enabled for the database. Read and write access to data and configuration is unrestricted",
  "tags": [
    "startupWarnings"
  ]
}

{
  "t": {
    "$date": "2020-05-20T19:18:40.604+00:00"
  },
  "s": "I",
  "c": "NETWORK",
  "id": 51800,
  "ctx": "conn281",
  "msg": "client metadata",
  "attr": {
    "remote": "192.168.14.15:37666",
    "client": "conn281",
    "doc": {
      "application": {
        "name": "MongoDB Shell"
      },
      "driver": {
        "name": "MongoDB Internal Client",
        "version": "4.4.0"
      },
      "os": {
        "type": "Linux",
        "name": "CentOS Linux release 8.0.1905 (Core) ",
        "architecture": "x86_64",
        "version": "Kernel 4.18.0-80.11.2.el8_0.x86_64"
      }
    }
  }
}

{
  "t": {
    "$date": "2020-05-20T20:10:08.731+00:00"
  },
  "s": "I",
  "c": "COMMAND",
  "id": 51803,
  "ctx": "conn281",
  "msg": "Slow query",
  "attr": {
    "type": "command",
    "ns": "stocks.trades",
    "appName": "MongoDB Shell",
    "command": {
      "aggregate": "trades",
      "pipeline": [
        {
          "$project": {
            "ticker": 1,
            "price": 1,
            "priceGTE110": {
              "$gte": [
                "$price",
                110
              ]
            },
            "_id": 0
          }
        },
        {
          "$sort": {
            "price": -1
          }
        }
      ],
      "allowDiskUse": true,
      "cursor": {},
      "lsid": {
        "id": {
          "$uuid": "fa658f9e-9cd6-42d4-b1c8-c9160fabf2a2"
        }
      },
      "$clusterTime": {
        "clusterTime": {
          "$timestamp": {
            "t": 1590005405,
            "i": 1
          }
        },
        "signature": {
          "hash": {
            "$binary": {
              "base64": "AAAAAAAAAAAAAAAAAAAAAAAAAAA=",
              "subType": "0"
            }
          },
          "keyId": 0
        }
      },
      "$db": "test"
    },
    "planSummary": "COLLSCAN",
    "cursorid": 1912190691485054700,
    "keysExamined": 0,
    "docsExamined": 1000001,
    "hasSortStage": true,
    "usedDisk": true,
    "numYields": 1002,
    "nreturned": 101,
    "reslen": 17738,
    "locks": {
      "ReplicationStateTransition": {
        "acquireCount": {
          "w": 1119
        }
      },
      "Global": {
        "acquireCount": {
          "r": 1119
        }
      },
      "Database": {
        "acquireCount": {
          "r": 1119
        }
      },
      "Collection": {
        "acquireCount": {
          "r": 1119
        }
      },
      "Mutex": {
        "acquireCount": {
          "r": 117
        }
      }
    },
    "storage": {
      "data": {
        "bytesRead": 232899899,
        "timeReadingMicros": 186017
      },
      "timeWaitingMicros": {
        "cache": 849
      }
    },
    "remote": "192.168.14.15:37666",
    "protocol": "op_msg",
    "durationMillis": 22427
  }
}

{
  "t": {
    "$date": "2020-05-20T19:11:09.268+00:00"
  },
  "s": "I",
  "c": "REPL",
  "id": 21752,
  "ctx": "ReplCoord-0",
  "msg": "Scheduling remote command request",
  "attr": {
    "context": "vote request",
    "request": "RemoteCommand 229 -- target:localhost:27003 db:admin cmd:{ replSetRequestVotes: 1, setName: \"my-replica-name\", dryRun: true, term: 3, candidateIndex: 0, configVersion: 2, configTerm: 3, lastAppliedOpTime: { ts: Timestamp(1589915409, 1), t: 3 } }"
  }
}

"resolvedViews": [ {
   "viewNamespace": <String>,  // namespace and view name
   "dependencyChain": <Array of strings>,  // view name and collection
   "resolvedPipeline": <Array of documents>  // aggregation pipeline for view
} ]

{
   "t": {
      "$date": "2021-09-30T17:53:54.646+00:00"
   },
   "s": "I",
   "c": "COMMAND",
   "id": 51803,
   "ctx": "conn249",
   "msg": "Slow query",
   "attr": {
      "type": "command",
      "ns": "test.myView",
      "appName": "MongoDB Shell",
      "command": {
         "find": "myView",
         "filter": {},
         "lsid": {
            "id": { "$uuid": "ad176471-60e5-4e82-b977-156a9970d30f" }
         },
         "$db": "test"
      },
      "planSummary":"COLLSCAN",
         "resolvedViews": [ {
            "viewNamespace": "test.myView",
            "dependencyChain": [ "myView", "myCollection" ],
            "resolvedPipeline": [ { "$sort": { "firstName": 1 } } ]
         } ],
         "keysExamined": 0,
         "docsExamined": 1,
         "hasSortStage": true,
         "cursorExhausted": true,
         "numYields": 0,
         "nreturned": 1,
         "queryHash": "3344645B",
         "planCacheKey": "1D3DE690",
         "reslen": 134,
         "locks": { "ParallelBatchWriterMode": { "acquireCount": { "r": 1 } },
         "ReplicationStateTransition": { "acquireCount": { "w": 1 } },
         "Global": { "acquireCount": { "r": 4 } },
         "Database": { "acquireCount": {"r": 1 } },
         "Collection": { "acquireCount": { "r": 1 } },
         "Mutex": { "acquireCount": { "r": 4 } } },
         "storage": {},
         "remote": "127.0.0.1:34868",
         "protocol": "op_msg",
         "durationMillis": 0
      }
   }
}

"authorization": {
   "startedUserCacheAcquisitionAttempts": 1,
   "completedUserCacheAcquisitionAttempts": 1,
   "userCacheWaitTimeMicros": 508
 },