Return Measurements for All Shards of One Cluster

GET /api/atlas/v2/groups/{groupId}/clusters/{clusterName}/shardMetrics:listMeasurements

Returns time series of the requested measurements for every shard of the specified sharded cluster, one series per shard and measurement. Each shard's series averages the readings of its member processes selected by nodeType. Each series carries one data point per granularity interval, starting at start and not passing end. A data point's value is null when MongoDB Cloud has no reading for that interval; this includes the first minutes after a cluster or shard is created, before its metrics are collected, so null must not be read as zero load. Set period, or set both start and end; when neither is set, the response covers the last hour. A request whose window and granularity would produce more than 1000 data points per series is rejected.

Role requirements
  • Project Read Only

Path parameters

  • groupId string Required

    Unique 24-hexadecimal digit string that identifies your project. Use the /groups endpoint to retrieve all projects to which the authenticated user has access.

    NOTE: Groups and projects are synonymous terms. Your group id is the same as your project id. For existing groups, your group/project id remains the same. The resource and corresponding endpoints use the term groups.

    Format should match the following pattern: ^([a-f0-9]{24})$.

  • clusterName string Required

    Human-readable label that identifies the cluster.

    Format should match the following pattern: ^[a-zA-Z0-9][a-zA-Z0-9-]*$.

Query parameters

  • envelope boolean

    Flag that indicates whether Application wraps the response in an envelope JSON object. Some API clients cannot access the HTTP response headers or status code. To remediate this, set envelope=true in the query. Endpoints that return a list of results use the results object as an envelope. Application adds the status parameter to the response body.

    Default value is false.

  • pretty boolean

    Flag that indicates whether the response body should be in the prettyprint format.

    Default value is false.

    Prettyprint
  • m array[string]

    One or more measurements to return. If omitted, the resource returns all measurements. To specify multiple values for m, repeat the m parameter for each value.

    At least 1 but not more than 20 elements. Values are SYSTEM_CPU, SYSTEM_MEMORY, SYSTEM_NETWORK, DISK_IOPS, DISK_LATENCY, DISK_THROUGHPUT, DISK_SPACE, CONNECTIONS, OPCOUNTERS, QUEUES, or REPLICATION_LAG.

  • granularity string

    Interval between consecutive data points, in ISO 8601 duration format. If omitted, MongoDB Cloud chooses the resolution from the width of the window.

    Values are PT30S, PT1M, PT3M, PT15M, PT1H, or PT3H.

  • period string

    Duration over which Atlas reports the metrics. This parameter expresses its value in the ISO 8601 duration format in UTC. Include this parameter when you do not set start and end.

  • start string(date-time)

    Date and time when MongoDB Cloud begins reporting the metrics. This parameter expresses its value in the ISO 8601 timestamp format in UTC. Include this parameter when you do not set period.

  • end string(date-time)

    Date and time when MongoDB Cloud stops reporting the metrics. This parameter expresses its value in the ISO 8601 timestamp format in UTC. Include this parameter when you do not set period.

  • nodeType string

    Members of each shard whose readings are averaged into the shard's series.

    Values are ALL, PRIMARIES, or SECONDARIES. Default value is ALL.

Responses

  • 200 application/vnd.atlas.2025-03-12+json

    OK

    Hide headers attributes Show headers attributes
    • RateLimit-Limit

      The maximum number of requests that a user can make within a specific time window.

    • RateLimit-Remaining

      The number of requests remaining in the current rate limit window before the limit is reached.

    Hide response attributes Show response attributes object
    • clusterName string Required

      Human-readable label that identifies the cluster.

    • end string(date-time) Required

      Date and time at which the window ends. This parameter expresses its value in the ISO 8601 timestamp format in UTC.

    • granularity string Required

      Interval between consecutive data points, in ISO 8601 duration format. Either the requested granularity or, when none was requested, the resolution MongoDB Cloud chose for the width of the window.

      Values are PT30S, PT1M, PT3M, PT15M, PT1H, or PT3H.

    • groupId string Required

      Unique 24-hexadecimal digit string that identifies the project.

      Format should match the following pattern: ^([a-f0-9]{24})$.

    • measurements array[object] Required

      One time series per requested measurement on each shard of the cluster, ordered by measurement and then by replicaSetName. A shard that MongoDB Cloud has no readings for is still listed, with null data point values.

      Not more than 11000 elements.

      Hide measurements attributes Show measurements attributes object

      Time series of one measurement on one shard of the cluster.

      • dataPoints array[object] Required

        Data points of the measurement at granularity intervals, starting at start and not passing end, in ascending time order.

        Not more than 1000 elements.

        Hide dataPoints attributes Show dataPoints attributes object

        Value of one measurement at one moment in time. The value is null when no reading exists for that moment.

        • timestamp string(date-time) Required

          Date and time of the data point. This parameter expresses its value in the ISO 8601 timestamp format in UTC.

        • value number(double) | null Required

          Value of the measurement at this moment, in the units of the measurement. null when no reading exists for this moment, including the period after a cluster or shard is created before MongoDB Cloud starts collecting its metrics.

      • name string Required

        Measurement that the data points quantify.

        Values are SYSTEM_CPU, SYSTEM_MEMORY, SYSTEM_NETWORK, DISK_IOPS, DISK_LATENCY, DISK_THROUGHPUT, DISK_SPACE, CONNECTIONS, OPCOUNTERS, QUEUES, or REPLICATION_LAG.

      • replicaSetName string Required

        Human-readable label that identifies the shard, as the replica set name of its members.

      • units string Required

        Unit in which the data points express the measurement.

        Values are BYTES, BYTES_PER_SECOND, GIGABYTES, GIGABYTES_PER_HOUR, MEGABYTES_PER_SECOND, MICROSECONDS, MILLISECONDS, PERCENT, SCALAR, or SCALAR_PER_SECOND.

    • start string(date-time) Required

      Date and time of the first data point. This parameter expresses its value in the ISO 8601 timestamp format in UTC.

  • 400 application/json

    Bad Request.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Bad request detail.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Describes all violations in a client request.

        Hide fields attributes Show fields attributes object
        • description string Required

          A description of why the request element is bad.

        • field string Required

          A path that leads to a field in the request body.

    • detail string | null

      Describes the specific conditions or reasons that cause each type of error.

    • error integer(int32) Required

      HTTP status code returned with this error.

      External documentation
    • errorCode string Required

      Application error code returned with this error.

    • parameters array[object]

      Parameters used to give more information about the error.

    • reason string | null

      Application error message returned with this error.

  • 401 application/json

    Unauthorized.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Bad request detail.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Describes all violations in a client request.

        Hide fields attributes Show fields attributes object
        • description string Required

          A description of why the request element is bad.

        • field string Required

          A path that leads to a field in the request body.

    • detail string | null

      Describes the specific conditions or reasons that cause each type of error.

    • error integer(int32) Required

      HTTP status code returned with this error.

      External documentation
    • errorCode string Required

      Application error code returned with this error.

    • parameters array[object]

      Parameters used to give more information about the error.

    • reason string | null

      Application error message returned with this error.

  • 403 application/json

    Forbidden.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Bad request detail.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Describes all violations in a client request.

        Hide fields attributes Show fields attributes object
        • description string Required

          A description of why the request element is bad.

        • field string Required

          A path that leads to a field in the request body.

    • detail string | null

      Describes the specific conditions or reasons that cause each type of error.

    • error integer(int32) Required

      HTTP status code returned with this error.

      External documentation
    • errorCode string Required

      Application error code returned with this error.

    • parameters array[object]

      Parameters used to give more information about the error.

    • reason string | null

      Application error message returned with this error.

  • 404 application/json

    Not Found.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Bad request detail.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Describes all violations in a client request.

        Hide fields attributes Show fields attributes object
        • description string Required

          A description of why the request element is bad.

        • field string Required

          A path that leads to a field in the request body.

    • detail string | null

      Describes the specific conditions or reasons that cause each type of error.

    • error integer(int32) Required

      HTTP status code returned with this error.

      External documentation
    • errorCode string Required

      Application error code returned with this error.

    • parameters array[object]

      Parameters used to give more information about the error.

    • reason string | null

      Application error message returned with this error.

  • 429 application/json

    Too Many Requests.

    Hide headers attributes Show headers attributes
    • RateLimit-Limit

      The maximum number of requests that a user can make within a specific time window.

    • RateLimit-Remaining

      The number of requests remaining in the current rate limit window before the limit is reached.

    • Retry-After

      The minimum time you should wait, in seconds, before retrying the API request. This header might be returned for 429 or 503 error responses.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Bad request detail.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Describes all violations in a client request.

        Hide fields attributes Show fields attributes object
        • description string Required

          A description of why the request element is bad.

        • field string Required

          A path that leads to a field in the request body.

    • detail string | null

      Describes the specific conditions or reasons that cause each type of error.

    • error integer(int32) Required

      HTTP status code returned with this error.

      External documentation
    • errorCode string Required

      Application error code returned with this error.

    • parameters array[object]

      Parameters used to give more information about the error.

    • reason string | null

      Application error message returned with this error.

  • 500 application/json

    Internal Server Error.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Bad request detail.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Describes all violations in a client request.

        Hide fields attributes Show fields attributes object
        • description string Required

          A description of why the request element is bad.

        • field string Required

          A path that leads to a field in the request body.

    • detail string | null

      Describes the specific conditions or reasons that cause each type of error.

    • error integer(int32) Required

      HTTP status code returned with this error.

      External documentation
    • errorCode string Required

      Application error code returned with this error.

    • parameters array[object]

      Parameters used to give more information about the error.

    • reason string | null

      Application error message returned with this error.

GET /api/atlas/v2/groups/{groupId}/clusters/{clusterName}/shardMetrics:listMeasurements
atlas api shardingInsights listShardMetricMeasurements --help
import (
	"os"
	"context"
	"log"
	sdk "go.mongodb.org/atlas-sdk/v20250312001/admin"
)

func main() {
	ctx := context.Background()
	clientID := os.Getenv("MONGODB_ATLAS_CLIENT_ID")
	clientSecret := os.Getenv("MONGODB_ATLAS_CLIENT_SECRET")

	// See https://dochub.mongodb.org/core/atlas-go-sdk-oauth
	client, err := sdk.NewClient(sdk.UseOAuthAuth(clientID, clientSecret))

	if err != nil {
		log.Fatalf("Error: %v", err)
	}

	params = &sdk.ListGroupClusterShardMetricMeasurementsApiParams{}
	sdkResp, httpResp, err := client.ShardingInsightsApi.
		ListGroupClusterShardMetricMeasurementsWithParams(ctx, params).
		Execute()
}
curl --include --header "Authorization: Bearer ${ACCESS_TOKEN}" \
  --header "Accept: application/vnd.atlas.2025-03-12+json" \
  -X GET "https://cloud.mongodb.com/api/atlas/v2/groups/{groupId}/clusters/{clusterName}/shardMetrics:listMeasurements?pretty=true"
curl --user "${PUBLIC_KEY}:${PRIVATE_KEY}" \
  --digest --include \
  --header "Accept: application/vnd.atlas.2025-03-12+json" \
  -X GET "https://cloud.mongodb.com/api/atlas/v2/groups/{groupId}/clusters/{clusterName}/shardMetrics:listMeasurements?pretty=true"
Response examples (200)
# Headers

# Payload
{
  "clusterName": "string",
  "end": "2026-05-04T09:42:00Z",
  "granularity": "PT30S",
  "groupId": "32b6e34b3d91647abb20e7b8",
  "measurements": [
    {
      "dataPoints": [
        {
          "timestamp": "2026-05-04T09:42:00Z",
          "value": 42.0
        }
      ],
      "name": "SYSTEM_CPU",
      "replicaSetName": "atlas-12vorz-shard-0",
      "units": "BYTES"
    }
  ],
  "start": "2026-05-04T09:42:00Z"
}
Response examples (400)
{
  "detail": "(This is just an example, the exception may not be related to this endpoint) No provider AWS exists.",
  "error": 400,
  "errorCode": "VALIDATION_ERROR",
  "reason": "Bad Request"
}
Response examples (401)
{
  "detail": "(This is just an example, the exception may not be related to this endpoint)",
  "error": 401,
  "errorCode": "NOT_ORG_GROUP_CREATOR",
  "reason": "Unauthorized"
}
Response examples (403)
{
  "detail": "(This is just an example, the exception may not be related to this endpoint)",
  "error": 403,
  "errorCode": "CANNOT_CHANGE_GROUP_NAME",
  "reason": "Forbidden"
}
Response examples (404)
{
  "detail": "(This is just an example, the exception may not be related to this endpoint) Cannot find resource AWS",
  "error": 404,
  "errorCode": "RESOURCE_NOT_FOUND",
  "reason": "Not Found"
}
Response examples (429)
{
  "detail": "(This is just an example, the exception may not be related to this endpoint)",
  "error": 429,
  "errorCode": "RATE_LIMITED",
  "reason": "Too Many Requests"
}
Response examples (500)
{
  "detail": "(This is just an example, the exception may not be related to this endpoint)",
  "error": 500,
  "errorCode": "UNEXPECTED_ERROR",
  "reason": "Internal Server Error"
}