Quotas and limits in Data Streams
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Updated at March 7, 2025
Yandex Data Streams has the following limits:
- Quotas are organizational restrictions that can be changed by technical support.
- Limits are technical limitations due to Yandex Cloud architectural features. You cannot change the limits.
If you need more resources, you can increase quotas in one of the following ways:
- Generate a request for a quota increase.
- Contact support and tell us which quotas you want increased and by how much.
To have your request processed, you must have the quota-manager.requestOperator role or higher (editor or admin).
You can manage quotas using Cloud Quota Manager.
Quotas
| Type of limit | Value |
|---|---|
| Maximum number of data transmission streams | 10 |
| Maximum data retention period for a data stream | 24 hours |
Limits
| Type of limit | Value |
|---|---|
| Maximum data write requests per second for a single data stream segment | 1,000 RPS |
| Maximum data write speed for a single segment | 1 MB/s |
| Maximum single-segment data read speed for all standard consumers | 2 MB/s |
| Maximum number of dedicated data consumers per data stream | 5 consumers |
| Maximum size per message | 1 MB |
| Number of shards in a YDB serverless database | 100 |