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Understanding these limits helps you plan your data modeling resource usage.

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Resource limits

The table lists the default limits for data modeling resources. The limits can be different for your CDF project depending on your specific configuration. For stream template specifications, including maximum record counts, data volumes, throughput limits, and retention periods, see Records and streams.

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Property value limits

These limits apply to the values of container properties:

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List size limits

By default, list properties have these size constraints:
  • Direct relations: maximum 100 items
  • Other types: maximum 1,000 items
You can customize the limits by setting the maxListSize parameter on container properties. You can only increase (not decrease) the maxListSize parameter after creating a container property. The maximum values for maxListSize are:
  • 600 for int32 properties with a b-tree index.
  • 300 for int64 properties with a b-tree index.
  • 2,000 for all other property types.

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Concurrency limits

Concurrency limits control how many API operations can run simultaneously on your CDF project. The table lists the default concurrency limits for a CDF project. The limits can be different for your CDF project depending on your specific configuration. Transformations can use a maximum of 75% of the budget while the remaining 25% is reserved for other clients. Concurrency limits are applied project-wide, not per client. If a request exceeds any of the concurrency limits, it will be throttled with a 429 Too Many Requests response. Learn more about API rate limits.
If you are using official Cognite SDKs, throttled requests are automatically retried with exponential backoff. If you are making request without using an official SDK, make sure that you are using an appropriate retry strategy to handle 429 responses.

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Need higher limits?

If you need increased limits for your CDF project, contact Cognite Support.

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Monitoring resource usage

To view the current limits and usage statistics for your CDF project:
1

Navigate to the Data models page

In the Data fusion workspace, select Data models.
2

View the limits and usage statistics

On the Data models page, under Storage, select See all to view your project-specific limits and current usage statistics.

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Monitoring resource usage programmatically

To retrieve limits and usage statistics programmatically:

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Reserved values

The following values are reserved for Cognite internal use and cannot be used in your data models.

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Views and containers

Reserved externalId values:
  • Boolean, Date, Float32, Float64, Float, Int32, Int64, Int
  • JSONObject, Mutation, Numeric, PageInfo, Query, String
  • Subscription, TimeSeries, File, Sequence, Timestamp
Reserved properties values:
  • createdTime, deletedTime, edge_id, extensions, externalId
  • lastUpdatedTime, node_id, project_id, property_group
  • seq, space, version, tg_table_name, startNode, endNode
Reserved enum value names:
  • "true", "false", "null"

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Spaces

Reserved space values:
  • cdf, dms, edge, node, pg3, shared, space, mapping, system
  • constraint, edge_source, history, identifier_by_space, index
  • node_source, project, property_group_constraint, property_group_index
  • property_group, property, version_info
Last modified on June 2, 2026