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Yandex Data Streams
    • Overview
    • Terms and definitions
    • Partitions and partition keys
    • Quotas and limits
    • Comparison with Yandex Message Queue
    • Transactions involving data streams and YDB tables
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  1. Concepts
  2. Quotas and limits

Quotas and limits in Data Streams

Written by
Yandex Cloud
Updated at April 28, 2025

Yandex Data Streams has the following limits:

  • Quotas are organizational constraints that our support team can change upon request.
  • Limits are technical constraints of the Yandex Cloud architecture. You cannot change the limits.

If you need more resources, you can increase your quotas in one of the following ways:

  • Make a request to increase your quotas.
  • Contact support, detailing which quotas you want increased and by how much.

To have your request processed, you must have the quota-manager.requestOperator role or higher, e.g.,editor or admin.

You can manage quotas using Cloud Quota Manager.

QuotasQuotas

Type of limit Value
Maximum number of data transmission streams 10
Maximum data retention period for a data stream 24 hours

LimitsLimits

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

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