> For the complete MongoDB documentation index, see www.mongodb.com/docs/llms.txt

# Toggle $queryStats Log Output

MongoDB records [`$queryStats`](https://www.mongodb.com/docs/manual/reference/operator/aggregation/querystats.md#mongodb-pipeline-pipe.-queryStats) operations in the [deployment logs](https://www.mongodb.com/docs/atlas/mongodb-logs/). By default, MongoDB only logs the invocation of `$queryStats` operations, not the operation's output. For `$queryStats` operations that include the `transformIdentifiers` option, you can specify whether the transformed output is included in the log entry.

Including `$queryStats` output in the logs provides more information on specific `$queryStats` operations, but can negatively impact cluster performance as log updates take more time and resources.

## About this Task

When MongoDB logs `$queryStats` output, the results are redacted and anonymized. `$queryStats` output does not contain literals or field values.

For an example of transformed `$queryStats` output, see [Transformed Example.](https://www.mongodb.com/docs/manual/reference/operator/aggregation/querystats.md#std-label-queryStats-example-transformed)

## Steps

1. In the MongoDB Atlas UI, go to the Clusters page for your project.

   If it's not already displayed, select the organization that contains your desired project from the  Organizations menu in the navigation bar.

   If it's not already displayed, select your project from the Projects menu in the navigation bar.

   In the sidebar, click Clusters under the Database heading.

   The [Clusters](https://cloud.mongodb.com/go?l=https%3A%2F%2Fcloud.mongodb.com%2Fv2%2F%3Cproject%3E%23%2Fclusters) page displays.

2. Click Edit Config

3. Select your cluster from the dropdown

4. Open the Additional Settings dropdown

5. Open the More Configuration Options dropdown

6. Toggle the Enable Logging of Redacted and Anonymized Query Data setting

7. Click Review Changes

8. Click Apply Changes

## Examples

The following examples show the differences in log messages when `$queryStats` output is included.

**Note:**

The example log entries are reformatted for readability.

### `$queryStats` Output Omitted (Default Behavior)

```javascript
{
  "t":{"$date":"2026-08-14T13:36:19.194-04:00"},"s":"D1",
  "c":"QRYSTATS", "id":7808300, "ctx":"conn12","msg":"Logging
  invocation
  $queryStats","attr":{"commandSpec":{"transformIdentifiers":{"algorithm":"hmac-sha-256","hmacKey":"###"}}}
}
```

### `$queryStats` Output Included

The following entries show `$queryStats` output for `find`, `aggregate`, `update`, `insert`, and `delete` commands.

```javascript
{
  "t":{"$date":"2026-08-14T13:36:19.194-04:00"},"s":"D1",
  "c":"QRYSTATS", "id":7808300, "ctx":"conn12","msg":"Logging
  invocation
  $queryStats","attr":{"commandSpec":{"transformIdentifiers":{"algorithm":"hmac-sha-256","hmacKey":"###"}}}
}

{
  "t":{"$date":"2026-08-14T13:36:19.195-04:00"},"s":"D3",
  "c":"QRYSTATS", "id":7808301, "ctx":"conn12","msg":"Logging all
  outputs of $queryStats","attr":{"thisOutput":"{key: {queryShape:
  {cmdNs: {db: \"NDXwsPk1xffftPK7Ga+NkvqvpzJ2HsQo6Y0HWzKLUfE=\",
  coll: \"v1pv8qfNsL3bTnmkylPZQV8I0uGOyLulAWaRDNyL9W4=\"}, command:
  \"find\", filter: {9E+xqjUFAszhgGsn+U4PFNBgyA1Ll2bJ5e3v7rodohk=:
  {$eq: \"?string\"}}}, client: {application: {name: \"MongoDB
  Shell\"}, driver: {name: \"MongoDB Internal Client\", version:
  \"9.0.0-alpha0-b10821b6\"}, os: {type: \"Darwin\", name: \"Mac OS
  X\", architecture: \"arm64\", version: \"25.6.0\"}},
  collectionType: \"collection\"}, keyHash:
  \"U7VRHEiTzlK9gexBBktB3uiL9IATNdEmTwu0QrqCLRc=\", queryShapeHash:
  \"E28B52C6E424C945EFD51950FF2894D64FAD59114BC5563CE8B56BD7D6132616\",
  metrics: {lastExecutionMicros: 246, execCount: 1, totalExecMicros:
  {sum: 246, max: 246, min: 246, sumOfSquares: 60516},
  workingTimeMillis: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  cursor: {firstResponseExecMicros: {sum: 246, max: 246, min: 246,
  sumOfSquares: 60516}}, queryExec: {docsReturned: {sum: 2, max: 2,
  min: 2, sumOfSquares: 4}, keysExamined: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, docsExamined: {sum: 3, max: 3, min: 3,
  sumOfSquares: 9}, bytesRead: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}, readTimeMicros: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  delinquentAcquisitions: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  totalAcquisitionDelinquencyMillis: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, maxAcquisitionDelinquencyMillis: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalTimeQueuedMicros: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalAdmissions: {sum: 1, max: 1, min: 1,
  sumOfSquares: 1}, wasLoadShed: {true: 0, false: 1},
  wasDeprioritized: {true: 0, false: 1}, wasMarkedNonDeprioritizable:
  {true: 0, false: 1}, numInterruptChecksPerSec: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, overdueInterruptApproxMaxMillis: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, peakTrackedMemBytes: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, clusterPeakTrackedMemBytes: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}}, queryPlanner: {hasSortStage:
  {true: 0, false: 1}, usedDisk: {true: 0, false: 1},
  fromMultiPlanner: {true: 0, false: 1}, fromPlanCache: {true: 0,
  false: 1}, planShapeCounters: {patterns: {collscan: 1}, nodes:
  {collscanWithFilter: 1}, accessPaths: {collscan: 1}},
  planningTimeMicros: {sum: 202, max: 202, min: 202, sumOfSquares:
  40804}, costBasedRanker: {cardinalityEstimationMethods: {Histogram:
  0, Sampling: 0, Heuristics: 0, Mixed: 0, Metadata: 0, Code: 0},
  nDocsSampled: {sum: 0, max: 0, min: 0, sumOfSquares: 0}}}, writes:
  {nMatched: {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nUpserted:
  {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nModified: {sum: 0, max:
  0, min: 0, sumOfSquares: 0}, nDeleted: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, nInserted: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}, nUpdateOps: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  nDeleteOps: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  keysInserted: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  keysDeleted: {sum: 0, max: 0, min: 0, sumOfSquares: 0}},
  firstSeenTimestamp: 2026-08-14T17:36:03.196Z, latestSeenTimestamp:
  2026-08-14T17:36:03.196Z}, asOf: 2026-08-14T17:36:19.195Z}"}
}

{
  "t":{"$date":"2026-08-14T13:36:19.195-04:00"},"s":"D3",
  "c":"QRYSTATS", "id":7808301, "ctx":"conn12","msg":"Logging all
  outputs of $queryStats","attr":{"thisOutput":"{key: {queryShape:
  {cmdNs: {db: \"NDXwsPk1xffftPK7Ga+NkvqvpzJ2HsQo6Y0HWzKLUfE=\",
  coll: \"v1pv8qfNsL3bTnmkylPZQV8I0uGOyLulAWaRDNyL9W4=\"}, command:
  \"aggregate\", pipeline: [{$match:
  {9E+xqjUFAszhgGsn+U4PFNBgyA1Ll2bJ5e3v7rodohk=: {$eq:
  \"?string\"}}}, {$group: {_id:
  \"$9E+xqjUFAszhgGsn+U4PFNBgyA1Ll2bJ5e3v7rodohk=\",
  HQq+4Kt4CRz2lLU0og3Sw5lggExgcDoIjidwYwXji5M=: {$sum:
  \"$Z/e4M5zUamGn1c4D4W1lcBDfPcZDJ+U07OaPBq43Dz0=\"}}}]}, client:
  {application: {name: \"MongoDB Shell\"}, driver: {name: \"MongoDB
  Internal Client\", version: \"9.0.0-alpha0-b10821b6\"}, os: {type:
  \"Darwin\", name: \"Mac OS X\", architecture: \"arm64\", version:
  \"25.6.0\"}}, collectionType: \"collection\", cursor: {batchSize:
  \"?number\"}}, keyHash:
  \"FyGyKT3wiuz4MTuVDmEfZacv2hn5lDqg5mszK6lx1xI=\", queryShapeHash:
  \"4C28EC9EC1777AEA2C1BD041EC953DD5F4913B347561CB2B1E65BBF89AD7FD8F\",
  metrics: {lastExecutionMicros: 1146, execCount: 1, totalExecMicros:
  {sum: 1146, max: 1146, min: 1146, sumOfSquares: 1313316},
  workingTimeMillis: {sum: 1, max: 1, min: 1, sumOfSquares: 1},
  cursor: {firstResponseExecMicros: {sum: 1146, max: 1146, min: 1146,
  sumOfSquares: 1313316}}, queryExec: {docsReturned: {sum: 1, max: 1,
  min: 1, sumOfSquares: 1}, keysExamined: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, docsExamined: {sum: 3, max: 3, min: 3,
  sumOfSquares: 9}, bytesRead: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}, readTimeMicros: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  delinquentAcquisitions: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  totalAcquisitionDelinquencyMillis: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, maxAcquisitionDelinquencyMillis: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalTimeQueuedMicros: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalAdmissions: {sum: 1, max: 1, min: 1,
  sumOfSquares: 1}, wasLoadShed: {true: 0, false: 1},
  wasDeprioritized: {true: 0, false: 1}, wasMarkedNonDeprioritizable:
  {true: 0, false: 1}, numInterruptChecksPerSec: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, overdueInterruptApproxMaxMillis: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, peakTrackedMemBytes: {sum: 101,
  max: 101, min: 101, sumOfSquares: 10201},
  clusterPeakTrackedMemBytes: {sum: 101, max: 101, min: 101,
  sumOfSquares: 10201}}, queryPlanner: {hasSortStage: {true: 0,
  false: 1}, usedDisk: {true: 0, false: 1}, fromMultiPlanner: {true:
  0, false: 1}, fromPlanCache: {true: 0, false: 1},
  planShapeCounters: {patterns: {collscan: 1}, nodes:
  {collscanWithFilter: 1, group: 1}, accessPaths: {collscan: 1}},
  planningTimeMicros: {sum: 848, max: 848, min: 848, sumOfSquares:
  719104}, costBasedRanker: {cardinalityEstimationMethods:
  {Histogram: 0, Sampling: 0, Heuristics: 0, Mixed: 0, Metadata: 0,
  Code: 0}, nDocsSampled: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}}}, writes: {nMatched: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  nUpserted: {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nModified:
  {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nDeleted: {sum: 0, max:
  0, min: 0, sumOfSquares: 0}, nInserted: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, nUpdateOps: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, nDeleteOps: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, keysInserted: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, keysDeleted: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}}, firstSeenTimestamp: 2026-08-14T17:36:04.433Z,
  latestSeenTimestamp: 2026-08-14T17:36:04.433Z}, asOf:
  2026-08-14T17:36:19.194Z}"}
}

{
  "t":{"$date":"2026-08-14T13:36:19.195-04:00"},"s":"D3",
  "c":"QRYSTATS", "id":7808301, "ctx":"conn12","msg":"Logging all
  outputs of $queryStats","attr":{"thisOutput":"{key: {queryShape:
  {cmdNs: {db: \"NDXwsPk1xffftPK7Ga+NkvqvpzJ2HsQo6Y0HWzKLUfE=\",
  coll: \"v1pv8qfNsL3bTnmkylPZQV8I0uGOyLulAWaRDNyL9W4=\"}, command:
  \"update\", q: {9E+xqjUFAszhgGsn+U4PFNBgyA1Ll2bJ5e3v7rodohk=: {$eq:
  \"?string\"}}, u: {$set:
  {ntZWU4H2LlLmZzz67Wb2vTWkk4LqfIOhuAFRX0sULWE=: \"?bool\"}}, multi:
  true, upsert: false}, client: {application: {name: \"MongoDB
  Shell\"}, driver: {name: \"MongoDB Internal Client\", version:
  \"9.0.0-alpha0-b10821b6\"}, os: {type: \"Darwin\", name: \"Mac OS
  X\", architecture: \"arm64\", version: \"25.6.0\"}},
  collectionType: \"collection\", ordered: true,
  bypassDocumentValidation: false}, keyHash:
  \"mhznRyq080m/f+3o2iFavJzqDi4sNicFd9hCXm8jTIM=\", queryShapeHash:
  \"5152AD802AF45FC6F8AF1840216B7361A0FD03BDE703C2E3955E476B554556FA\",
  metrics: {lastExecutionMicros: 254, execCount: 1, totalExecMicros:
  {sum: 254, max: 254, min: 254, sumOfSquares: 64516},
  workingTimeMillis: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  cursor: {firstResponseExecMicros: {sum: 254, max: 254, min: 254,
  sumOfSquares: 64516}}, queryExec: {docsReturned: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, keysExamined: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, docsExamined: {sum: 3, max: 3, min: 3,
  sumOfSquares: 9}, bytesRead: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}, readTimeMicros: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  delinquentAcquisitions: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  totalAcquisitionDelinquencyMillis: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, maxAcquisitionDelinquencyMillis: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalTimeQueuedMicros: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalAdmissions: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, wasLoadShed: {true: 0, false: 1},
  wasDeprioritized: {true: 0, false: 1}, wasMarkedNonDeprioritizable:
  {true: 0, false: 1}, numInterruptChecksPerSec: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, overdueInterruptApproxMaxMillis: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, peakTrackedMemBytes: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, clusterPeakTrackedMemBytes: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}}, queryPlanner: {hasSortStage:
  {true: 0, false: 1}, usedDisk: {true: 0, false: 1},
  fromMultiPlanner: {true: 0, false: 1}, fromPlanCache: {true: 0,
  false: 1}, planningTimeMicros: {sum: 136, max: 136, min: 136,
  sumOfSquares: 18496}, costBasedRanker:
  {cardinalityEstimationMethods: {Histogram: 0, Sampling: 0,
  Heuristics: 0, Mixed: 0, Metadata: 0, Code: 0}, nDocsSampled: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}}}, writes: {nMatched: {sum: 2,
  max: 2, min: 2, sumOfSquares: 4}, nUpserted: {sum: 0, max: 0, min:
  0, sumOfSquares: 0}, nModified: {sum: 2, max: 2, min: 2,
  sumOfSquares: 4}, nDeleted: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}, nInserted: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  nUpdateOps: {sum: 1, max: 1, min: 1, sumOfSquares: 1}, nDeleteOps:
  {sum: 0, max: 0, min: 0, sumOfSquares: 0}, keysInserted: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, keysDeleted: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}}, firstSeenTimestamp:
  2026-08-14T17:36:05.666Z, latestSeenTimestamp:
  2026-08-14T17:36:05.666Z}, asOf: 2026-08-14T17:36:19.195Z}"}
}

{
  "t":{"$date":"2026-08-14T13:36:19.194-04:00"},"s":"D3",
  "c":"QRYSTATS", "id":7808301, "ctx":"conn12","msg":"Logging all
  outputs of $queryStats","attr":{"thisOutput":"{key: {queryShape:
  {cmdNs: {db: \"NDXwsPk1xffftPK7Ga+NkvqvpzJ2HsQo6Y0HWzKLUfE=\",
  coll: \"v1pv8qfNsL3bTnmkylPZQV8I0uGOyLulAWaRDNyL9W4=\"}, command:
  \"insert\", documents: \"?array<?object>\"}, client: {application:
  {name: \"MongoDB Shell\"}, driver: {name: \"MongoDB Internal
  Client\", version: \"9.0.0-alpha0-b10821b6\"}, os: {type:
  \"Darwin\", name: \"Mac OS X\", architecture: \"arm64\", version:
  \"25.6.0\"}}, collectionType: \"collection\", ordered: true,
  bypassDocumentValidation: false}, keyHash:
  \"SNtsq6eAxUoAUe9gY4qbTCRLelSdAwkLV9IzW1ai784=\", queryShapeHash:
  \"F8CEACC0792556F9C439C7E4B542DE511D5F735B3DB7A0DA3C59949878FB02D4\",
  metrics: {lastExecutionMicros: 178, execCount: 2, totalExecMicros:
  {sum: 22362, max: 22184, min: 178, sumOfSquares: 492161540},
  workingTimeMillis: {sum: 22, max: 22, min: 0, sumOfSquares: 484},
  cursor: {firstResponseExecMicros: {sum: 22362, max: 22184, min:
  178, sumOfSquares: 492161540}}, queryExec: {docsReturned: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, keysExamined: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, docsExamined: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, bytesRead: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}, readTimeMicros: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  delinquentAcquisitions: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  totalAcquisitionDelinquencyMillis: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, maxAcquisitionDelinquencyMillis: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalTimeQueuedMicros: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, totalAdmissions: {sum: 4, max: 3, min: 1,
  sumOfSquares: 10}, wasLoadShed: {true: 0, false: 2},
  wasDeprioritized: {true: 0, false: 2}, wasMarkedNonDeprioritizable:
  {true: 0, false: 2}, numInterruptChecksPerSec: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, overdueInterruptApproxMaxMillis: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, peakTrackedMemBytes: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, clusterPeakTrackedMemBytes: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}}, queryPlanner: {hasSortStage:
  {true: 0, false: 2}, usedDisk: {true: 0, false: 2},
  fromMultiPlanner: {true: 0, false: 2}, fromPlanCache: {true: 0,
  false: 2}, planningTimeMicros: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, costBasedRanker: {cardinalityEstimationMethods:
  {Histogram: 0, Sampling: 0, Heuristics: 0, Mixed: 0, Metadata: 0,
  Code: 0}, nDocsSampled: {sum: 0, max: 0, min: 0, sumOfSquares:
  0}}}, writes: {nMatched: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  nUpserted: {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nModified:
  {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nDeleted: {sum: 0, max:
  0, min: 0, sumOfSquares: 0}, nInserted: {sum: 4, max: 3, min: 1,
  sumOfSquares: 10}, nUpdateOps: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, nDeleteOps: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, keysInserted: {sum: 4, max: 3, min: 1,
  sumOfSquares: 10}, keysDeleted: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}}, firstSeenTimestamp: 2026-08-14T17:36:01.963Z,
  latestSeenTimestamp: 2026-08-14T17:36:06.907Z}, asOf:
  2026-08-14T17:36:19.194Z}"}
}

{
  "t":{"$date":"2026-08-14T13:36:19.195-04:00"},"s":"D3",
  "c":"QRYSTATS", "id":7808301, "ctx":"conn12","msg":"Logging all
  outputs of $queryStats","attr":{"thisOutput":"{key: {queryShape:
  {cmdNs: {db: \"NDXwsPk1xffftPK7Ga+NkvqvpzJ2HsQo6Y0HWzKLUfE=\",
  coll: \"v1pv8qfNsL3bTnmkylPZQV8I0uGOyLulAWaRDNyL9W4=\"}, command:
  \"delete\", q: {9E+xqjUFAszhgGsn+U4PFNBgyA1Ll2bJ5e3v7rodohk=: {$eq:
  \"?string\"}}, limit: 0}, client: {application: {name: \"MongoDB
  Shell\"}, driver: {name: \"MongoDB Internal Client\", version:
  \"9.0.0-alpha0-b10821b6\"}, os: {type: \"Darwin\", name: \"Mac OS
  X\", architecture: \"arm64\", version: \"25.6.0\"}},
  collectionType: \"collection\", ordered: true,
  bypassDocumentValidation: false}, keyHash:
  \"bqVytbpyg+imenCQobnyM267Ez1B8wUukO/UoaomdA4=\", queryShapeHash:
  \"3729DA1407C3F88AC6E2DDA9756A044F28AB9EB13105EF9A35B2B2EF9E8B0436\",
  metrics: {lastExecutionMicros: 213, execCount: 1, totalExecMicros:
  {sum: 213, max: 213, min: 213, sumOfSquares: 45369},
  workingTimeMillis: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  cursor: {firstResponseExecMicros: {sum: 213, max: 213, min: 213,
  sumOfSquares: 45369}}, queryExec: {docsReturned: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, keysExamined: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, docsExamined: {sum: 4, max: 4, min: 4,
  sumOfSquares: 16}, bytesRead: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, readTimeMicros: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, delinquentAcquisitions: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, totalAcquisitionDelinquencyMillis: {sum: 0, max:
  0, min: 0, sumOfSquares: 0}, maxAcquisitionDelinquencyMillis: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}, totalTimeQueuedMicros: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}, totalAdmissions: {sum: 0, max:
  0, min: 0, sumOfSquares: 0}, wasLoadShed: {true: 0, false: 1},
  wasDeprioritized: {true: 0, false: 1}, wasMarkedNonDeprioritizable:
  {true: 0, false: 1}, numInterruptChecksPerSec: {sum: 0, max: 0,
  min: 0, sumOfSquares: 0}, overdueInterruptApproxMaxMillis: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, peakTrackedMemBytes: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, clusterPeakTrackedMemBytes: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}}, queryPlanner: {hasSortStage:
  {true: 0, false: 1}, usedDisk: {true: 0, false: 1},
  fromMultiPlanner: {true: 0, false: 1}, fromPlanCache: {true: 0,
  false: 1}, planningTimeMicros: {sum: 115, max: 115, min: 115,
  sumOfSquares: 13225}, costBasedRanker:
  {cardinalityEstimationMethods: {Histogram: 0, Sampling: 0,
  Heuristics: 0, Mixed: 0, Metadata: 0, Code: 0}, nDocsSampled: {sum:
  0, max: 0, min: 0, sumOfSquares: 0}}}, writes: {nMatched: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, nUpserted: {sum: 0, max: 0, min:
  0, sumOfSquares: 0}, nModified: {sum: 0, max: 0, min: 0,
  sumOfSquares: 0}, nDeleted: {sum: 1, max: 1, min: 1, sumOfSquares:
  1}, nInserted: {sum: 0, max: 0, min: 0, sumOfSquares: 0},
  nUpdateOps: {sum: 0, max: 0, min: 0, sumOfSquares: 0}, nDeleteOps:
  {sum: 1, max: 1, min: 1, sumOfSquares: 1}, keysInserted: {sum: 0,
  max: 0, min: 0, sumOfSquares: 0}, keysDeleted: {sum: 1, max: 1,
  min: 1, sumOfSquares: 1}}, firstSeenTimestamp:
  2026-08-14T17:36:08.139Z, latestSeenTimestamp:
  2026-08-14T17:36:08.139Z}, asOf: 2026-08-14T17:36:19.195Z}"}
}

// Additional $queryStats output...
```

## Learn More

- [Auditing](https://www.mongodb.com/docs/manual/core/auditing.md#std-label-auditing)

- [System Event Audit Messages](https://www.mongodb.com/docs/manual/reference/audit-message.md#std-label-audit-message)

- [Configure a Custom Auditing Filter](https://www.mongodb.com/docs/atlas/database-auditing/#std-label-auditing-custom-filter)