Service Level for Yandex Managed Service for YTsaurus

This document defines Service Level of Yandex Managed Service for YTsaurus (“Service”) and is an integral part of Yandex.Cloud Customer Agreement (“Agreement”) and SLA available at: https://yandex.com/legal/cloud_sla. Capitalized terms used herein but not defined herein shall have the meanings set forth in Agreement and Linked Documents.

Service Level

99,50 %

Compensation Amount:

Availability

Service Uptime Percentage in Accrual Period

Compensation, % of Service Fee of Service used in Accrual Period

< 99,50%-99,00%

10%

< 99,00%-90,00%

15%

less than 90.00 %

30%

Definition of Service Unavailability:

“Service Unavailability” is deemed to have occurred when the Error Rate exceeds five percent (5%) as measured on the Platform side.

“Error Rate” is measured according to the following formula: the number of requests that returned HTTP status code 500 or 503, or the message “Internal Server Error,” or gRPC status 13 with the error code “INTERNAL,” divided by the total number of Valid Requests for the same time period. Requests that violate the Deferred Request requirements are excluded from the formula;

“Service Unavailability Period” means ten consecutive minutes during which Service Unavailability was recorded;

“Valid Request” means a request that complies with the Service documentation and that, when the Service is operational, returns a response that does not contain an error;

“Deferred Request” means the requirement that the Client observe a time interval between requests to the server upon the occurrence of an error. The waiting periods under the Deferred Request rules shall be at least one second for the first retry request, and for each subsequent request the time interval shall increase exponentially, up to thirty-two seconds, before each next request.

The Service Level Agreement for the Service shall not apply to any instance of Service Unavailability resulting from circumstances beyond the Yandex’s control, including, without limitation, failures of external networks or the Client’s failure to comply with the Instructions.

Web address: https://yandex.com/legal/cloud_sla_yt

Date of placement: December 19, 2025

Effective date: December 19, 2025