Pricing policy for Serverless mode in Managed Service for YDB

The prices for service products are also available in the price list.

All prices below do not include VAT.

When using Managed Service for YDB in Serverless mode, you pay for each request to the database. You do not have to specify which resources you need since the database quickly adjusts to changes in the workload. Apart from the requests, you also pay for the data stored in Managed Service for YDB on an hourly basis. Other operations, such as recovery from a backup, are charged extra.

What goes into the cost of using the Serverless mode in Managed Service for YDBWhat goes into the cost of using the Serverless mode in Managed Service for YDB

When running Managed Service for YDB in Serverless mode, you pay for:

• Data operations.
• Amount of stored data, including service data, such as indexes.
• Additional user operations, such as recovery from a backup.

The following resources are paid additionally:

• Space used in Yandex Object Storage to store on-demand backups.
• Outgoing traffic from Yandex Cloud to the internet.

In all calculations, 1 GB = 2¹⁰ MB = 2²⁰ KB = 2³⁰ bytes.

Data operations and request unitsData operations and request units

In Serverless mode, Yandex Managed Service for YDB can work with data in several ways:

• YQL: SQL dialect to work with relational tables supported by the SDK, CLI, and the YDB management console.
• Document API: Amazon’s DynamoDB-compatible HTTP API. You can use this API to perform operations on document tables.

You can also query the database through the special APIs available as stand-alone features in the YDB SDK, CLI, or management console.

To calculate the cost of requests in YDB, we use so-called request units (RU). Each executed request, depending on its type, complexity, and data size, consumes a certain number of RUs. The total cost of all executed requests to YDB is the sum of the RU costs for each request.

Below, you can find the rules for calculating the cost of requests to YDB in RUs:

• YQL.
• Document API.
• Special APIs.
• Topic operations.

Pricing for Request Unit consumptionPricing for Request Unit consumption

• Actual consumption (on-demand). The cost of using YDB for a certain period is the number of spent RUs multiplied by the price per RU minus the monthly free package. If there were no requests to the database or if the amount of RUs spent in the current month is less than the free package, there is no charge for the actual RU consumption.
• Provisioned capacity. If your load is predictable and has a fixed component, you can reduce the cost of using YDB by paying for some (or all) RUs you spent on an hourly basis. To do this, set a non-zero value of the Provisioned capacity, RU/s property. After that, you will be charged according to a special pricing plan, the rate for which is set to RU/s per hour, with billing per second. The RUs consumed within the specified capacity are not added to the RUs spent at the on-demand rate.

Amount of stored dataAmount of stored data

In Serverless mode, data storage capacities are allocated automatically. The amount of stored data is calculated as the total amount of user and service data stored in the database. For example, creating a global index increases the total storage size by the index size.

For topics with on-demand pricing, you also pay for the actually used disk space. Its usage starts once each message is published in a topic and it is released once the retention period set for the topic expires.

Creating backupsCreating backups

Automatic backupsAutomatic backups

Managed Service for YDB automatically creates and stores two full backups for the last two days free of charge. No fee is charged for storing automatic backups.

On-demand backupsOn-demand backups

You can force a database backup, saving a copy to Object Storage. The cost of this operation depends on the size of copied data and is calculated similarly to the ReadTable operation. When calculating the cost, the actual amount is rounded up to a multiple of 1 GB.

Example of calculating the cost of creating an on-demand backupExample of calculating the cost of creating an on-demand backup

Let's calculate the cost of creating backups of 1 GB and 10 GB databases.

Cost calculation for a 1 GB database

Actual (on-demand) consumption of RUs per month will be:

128 RUs × 1,024 = 131,072 RUs

Where:

• 128: Cost of request for 1 MB of data.
• 1,024: Amount of copied data, in MB.

The number of RUs spent (131,072) is less than 1,000,000, so creating a backup will be free of charge.

Cost calculation for a 10 GB database

Actual (on-demand) consumption of RUs per month will be:

128 RUs × 1,024 × 10 = 1,310,720 RUs

Where:

• 128: Cost of request for 1 MB of data.
• 1,024 × 10: Amount of copied data, in MB.

The number of spent RUs (1,310,720) exceeds 1,000,000, so the cost of creating a backup will be $0.192420 for 1,000,000 RUs.

(1,310,720 RUs - 1,000,000 RUs) / 1,000,000 × $0.192420 = $0.059789

Total: $0.059789, cost of creating a 10 GB backup.

Where:

• 1,310,720 RUs: Actual (on-demand) consumption of RUs per month.
• $0.192420: Price per 1 million RUs.

Recovery from a backupRecovery from a backup

You can restore databases and individual tables from the backups stored in Object Storage. The cost of this operation depends on the size of recovered data and is calculated similarly to the BulkUpsert operation. When calculating the cost, the actual amount is rounded up to a multiple of 1 GB.

Example of calculating the cost of recovery from a backupExample of calculating the cost of recovery from a backup

Let's calculate the cost of backup recovery for 1 GB and 10 GB databases.

Cost calculation for a 1 GB database

Actual (on-demand) consumption of RUs per month will be:

0.5 RUs × 1,024 × 1,024 = 524,288 RUs

Where:

• 0.5: Cost of request per KB of data.
• 1,024 × 1,024: Amount of recovered data, in KB.

The number of RUs spent (524,288) is less than 1,000,000, so recovery from a backup will be free of charge.

Cost calculation for a 10 GB database

Actual (on-demand) consumption of RUs per month will be:

0.5 RUs × 1,024 × 1,024 × 10 = 5,242,880 RUs

Where:

• 0.5: Cost of request for 1 KB of data.
• 1,024 × 1,024 × 10: Amount of data being recovered, in KB.

The number of spent RUs (5,242,880) exceeds 1,000,000, so the cost of recovery from a backup will be $0.192420 for 1,000,000 RUs.

(5,242,880 RUs - 1,000,000 RUs) / 1,000,000 × $0.192420 = $0.816415

Total: $0.816415, the cost of recovery from a backup of 10 GB of data.

Where:

• 5,242,880 RUs: Actual (on-demand) consumption of RUs per month.
• $0.192420: Price per 1 million RUs.

Prices for the Russia regionPrices for the Russia region

Outbound trafficOutbound traffic

When using the service, you pay for traffic from Yandex Cloud to the internet. Traffic between internal IP addresses of Yandex Cloud services and incoming internet traffic is free.

The first 100 GB of outgoing traffic per month are free of charge.

The minimum billing unit is 1 MB.