---
title: "ClickHouse® Configurations"
sidebar_label: "Configurations"
description: "Available configuration lineups in ClickHouse® cluster node groups"
sidebar_position: 2
---

import {CustomTable} from '@selectel/docux/components'
import Formbricks from '@theme/MDXComponents/Formbricks'
import Tabs from '@theme/Tabs'
import TabItem from '@theme/TabItem'
import {TabItemLabel} from '@selectel/docux/components'

# ClickHouse® Configurations

## Node group configurations \{#node-group-configurations}

A ClickHouse® managed database cluster consists of [node groups](/managed-databases/clickhouse/about-node-groups.mdx). When [creating a cluster](/managed-databases/clickhouse/create-cluster.mdx), you can select the node group configuration: the number of vCPUs, amount of RAM, and disk size. All nodes in a group will have the same configuration.

Configurations are divided into [lines](#configuration-lines). Depending on the line, configuration, and [pool](/infrastructure/locations.mdx#pool), different [processors](#available-processors) and [disks are used](/managed-databases/clickhouse/volumes.mdx).

When selecting a configuration, keep in mind that part of the disk space is reserved for service needs and is unavailable for database placement. For more details, see the [Using disk space in a ClickHouse® cluster](/managed-databases/clickhouse/use-disk-space.mdx) instructions.

You can select the configuration for each node group when [creating a ClickHouse® managed database cluster](/managed-databases/clickhouse/create-cluster.mdx). After the cluster is created, you can change the node group configuration. For more details, see the [Scaling a ClickHouse® cluster](/managed-databases/clickhouse/resize-cluster.mdx) instructions.

## Configuration lines \{#configuration-lines}

The resource ratio in configuration lines can be:

* fixed — in the [Standard](#standard-line), [CPU](#cpu-line), [Memory](#memory-line), and [HighFreq](#highfreq-line) lines;
* or flexible — in the [Flex](#flex-line) line.

To check the availability of configuration lineups in locations, see the instructions in [Managed Databases availability in locations](/managed-databases/about/managed-databases-availability-by-location.mdx).

### Standard \{#standard-line}

A line of fixed configurations with local disk and a balanced vCPU:RAM ratio, suitable for most DBMSs. We recommend using this line if you do not know the workload profile.

Intel® Xeon® Scalable or AMD EPYC™ processors are used. To check processor frequencies in different lineups, see the table [Processors](#available-processors).

To check disk performance and bandwidth in different lineups, see the table [Performance and bandwidth](/managed-databases/clickhouse/volumes.mdx#performance-and-bandwidth).

<CustomTable>
  <table data-layout-fixed>
    <thead>
      <tr>
        <th>vCPU count</th><th>RAM</th><th>Local disk</th>
      </tr>
    </thead>

    <tbody>
      <tr>
        <td>4</td><td>8 GB</td><td>64 GB</td>
      </tr>

      <tr>
        <td>4</td><td>16 GB</td><td>128 GB</td>
      </tr>

      <tr>
        <td>6</td><td>32 GB</td><td>256 GB</td>
      </tr>

      <tr>
        <td>6</td><td>64 GB</td><td>512 GB</td>
      </tr>

      <tr>
        <td>10</td><td>96 GB</td><td>768 GB</td>
      </tr>

      <tr>
        <td>12</td><td>128 GB</td><td>1 TB</td>
      </tr>

      <tr>
        <td>16</td><td>160 GB</td><td>1.5 TB</td>
      </tr>

      <tr>
        <td>20</td><td>208 GB</td><td>2 TB</td>
      </tr>

      <tr>
        <td>24</td><td>272 GB</td><td>2.5 TB</td>
      </tr>
    </tbody>
  </table>
</CustomTable>

### CPU \{#cpu-line}

A line of fixed configurations with local disk and a balanced vCPU:RAM ratio. Suitable for workload profiles that are demanding on computations. For example, if the database performs analytical queries, multiple subqueries, or data encryption.

Intel® Xeon® Scalable or AMD EPYC™ processors are used. To check processor frequencies in different lineups, see the table [Processors](#available-processors).

To check disk performance and bandwidth in different lineups, see the table [Performance and bandwidth](/managed-databases/clickhouse/volumes.mdx#performance-and-bandwidth).

<CustomTable>
  <table data-layout-fixed>
    <thead>
      <tr>
        <th>Number of vCPUs</th><th>RAM</th><th>Local disk</th>
      </tr>
    </thead>

    <tbody>
      <tr>
        <td>6</td><td>8 GB</td><td>64 GB</td>
      </tr>

      <tr>
        <td>6</td><td>16 GB</td><td>128 GB</td>
      </tr>

      <tr>
        <td>8</td><td>32 GB</td><td>256 GB</td>
      </tr>

      <tr>
        <td>8</td><td>64 GB</td><td>512 GB</td>
      </tr>

      <tr>
        <td>12</td><td>96 GB</td><td>768 GB</td>
      </tr>

      <tr>
        <td>16</td><td>128 GB</td><td>1 TB</td>
      </tr>

      <tr>
        <td>20</td><td>160 GB</td><td>1.5 TB</td>
      </tr>

      <tr>
        <td>24</td><td>208 GB</td><td>2 TB</td>
      </tr>
    </tbody>
  </table>
</CustomTable>

### Memory \{#memory-line}

A line of fixed configurations with local disk and a balanced vCPU:RAM ratio. Suitable for workload profiles that are demanding on caching. For example, if the database performs multiple, rarely repeated queries to different parts of tables.

Intel® Xeon® Scalable or AMD EPYC™ processors are used. To check processor frequencies in different lineups, see the table [Processors](#available-processors).

To check disk performance and bandwidth in different lineups, see the table [Performance and bandwidth](/managed-databases/clickhouse/volumes.mdx#performance-and-bandwidth).

<CustomTable>
  <table data-layout-fixed>
    <thead>
      <tr>
        <th>Number of vCPUs</th><th>RAM</th><th>Local disk</th>
      </tr>
    </thead>

    <tbody>
      <tr>
        <td>2</td><td>8 GB</td><td>64 GB</td>
      </tr>

      <tr>
        <td>2</td><td>16 GB</td><td>128 GB</td>
      </tr>

      <tr>
        <td>4</td><td>32 GB</td><td>256 GB</td>
      </tr>

      <tr>
        <td>4</td><td>64 GB</td><td>512 GB</td>
      </tr>

      <tr>
        <td>8</td><td>96 GB</td><td>768 GB</td>
      </tr>

      <tr>
        <td>10</td><td>128 GB</td><td>1 TB</td>
      </tr>

      <tr>
        <td>14</td><td>160 GB</td><td>1.5 TB</td>
      </tr>

      <tr>
        <td>16</td><td>208 GB</td><td>2 TB</td>
      </tr>
    </tbody>
  </table>
</CustomTable>

### HighFreq \{#highfreq-line}

A line of fixed configurations with a balanced vCPU:RAM ratio.

High-performance Enterprise-grade equipment is used:

* Intel® Xeon® Gold 6354 (in the ru-9, ru-2, ru-8, and ke-1 pools) or AMD EPYC 9474F (in the ru-3, ru-7, and uz-1 pools) processors. To check processor frequencies in different lineups, see the table [Processors](#available-processors);
* RAM ECC Reg 3.2 GHz (in pools ru-9, ru-2, ru-8, ke-1) or RAM DDR5 ECC Reg 4.8 GHz (in pools ru-3, ru-7, uz-1);
* High-performance NVMe SSDs. To check disk performance and bandwidth in different lineups, see the table [Performance and bandwidth](/managed-databases/clickhouse/volumes.mdx#performance-and-bandwidth).

<CustomTable>
  <table data-layout-fixed>
    <thead>
      <tr>
        <th>vCPU count</th><th>RAM</th><th>Local disk</th>
      </tr>
    </thead>

    <tbody>
      <tr>
        <td>2</td><td>8 GB</td><td>64 GB</td>
      </tr>

      <tr>
        <td>4</td><td>8 GB</td><td>64 GB</td>
      </tr>

      <tr>
        <td>4</td><td>16 GB</td><td>128 GB</td>
      </tr>

      <tr>
        <td>6</td><td>8 GB</td><td>64 GB</td>
      </tr>

      <tr>
        <td>6</td><td>16 GB</td><td>128 GB</td>
      </tr>

      <tr>
        <td>6</td><td>32 GB</td><td>256 GB</td>
      </tr>

      <tr>
        <td>8</td><td>16 GB</td><td>128 GB</td>
      </tr>

      <tr>
        <td>8</td><td>32 GB</td><td>256 GB</td>
      </tr>

      <tr>
        <td>8</td><td>64 GB</td><td>512 GB</td>
      </tr>

      <tr>
        <td>8</td><td>78 GB</td><td>768 GB</td>
      </tr>

      <tr>
        <td>10</td><td>32 GB</td><td>256 GB</td>
      </tr>

      <tr>
        <td>10</td><td>64 GB</td><td>512 GB</td>
      </tr>

      <tr>
        <td>10</td><td>78 GB</td><td>768 GB</td>
      </tr>

      <tr>
        <td>10</td><td>96 GB</td><td>962 GB</td>
      </tr>

      <tr>
        <td>10</td><td>128 GB</td><td>1.22 TB GB</td>
      </tr>

      <tr>
        <td>12</td><td>78 GB</td><td>768 GB</td>
      </tr>

      <tr>
        <td>12</td><td>96 GB</td><td>962 GB</td>
      </tr>

      <tr>
        <td>12</td><td>128 GB</td><td>1.22 TB</td>
      </tr>

      <tr>
        <td>12</td><td>152 GB</td><td>1.5 TB</td>
      </tr>

      <tr>
        <td>12</td><td>204 GB</td><td>2 TB</td>
      </tr>

      <tr>
        <td>14</td><td>96 GB</td><td>962 GB</td>
      </tr>

      <tr>
        <td>14</td><td>128 GB</td><td>1.22 TB</td>
      </tr>

      <tr>
        <td>14</td><td>152 GB</td><td>1.5 TB</td>
      </tr>

      <tr>
        <td>16</td><td>152 GB</td><td>1.5 TB</td>
      </tr>

      <tr>
        <td>16</td><td>204 GB</td><td>2 TB</td>
      </tr>
    </tbody>
  </table>
</CustomTable>

### Flex \{#flex-line}

A line of custom configurations with a local or network volume, in which you can choose the resource ratio.

For information about disks, see the instructions in [Disks](/managed-databases/clickhouse/volumes.mdx).

To check disk performance and bandwidth in different lineups, see the table [Performance and bandwidth](/managed-databases/clickhouse/volumes.mdx#performance-and-bandwidth).

Intel® Xeon® Scalable or AMD EPYC™ processors are used. To check processor frequencies in different lineups, see the table [Processors](#available-processors).

Configuration limits depend on the [pool](/infrastructure/locations.mdx#pool).

<Tabs queryString="configurations">
  <TabItem value="local-disks" default>
    <TabItemLabel>
      Local disk
    </TabItemLabel>

    <CustomTable>
      <table data-layout-fixed>
        <thead>
          <tr>
            <th />

            <th>In pools<br />ru-1, ru-2<br /></th><th>In pool<br />ru-3</th><th>In pool<br />ru-6</th><th>In pools<br />ru-7, ru-8</th><th>In pool<br />ru-9</th><th>In pools<br />uz-1, uz-2,<br />kz-1</th>
          </tr>
        </thead>

        <tbody>
          <tr>
            <th>Number of vCPUs</th><td>2–20</td><td>2–32</td><td>2–120</td><td>2–122</td><td>2–68</td><td>2–32</td>
          </tr>

          <tr>
            <th>RAM `*`</th><td>8—200 GB</td><td>8—320 GB</td><td>8–700 GB</td><td>8–700 GB</td><td>8–700 GB</td><td>8–256 GB</td>
          </tr>

          <tr>
            <th>Local disk ` **`</th><td>32 GB — 2 TB</td><td>32 GB — 2 TB</td><td>32 GB — 2 TB</td><td>32 GB — 2 TB</td><td>32 GB — 2 TB</td><td>32 GB — 2 TB</td>
          </tr>
        </tbody>
      </table>
    </CustomTable>

    `*` The vCPU:RAM ratio must be at least 1:2:

    * for clusters in the ru-6 pool;
    * for clusters in other pools, if the configuration has more than 8 vCPU.

    For example, for 10 vCPU, you need at least 20 GB of RAM.

    ` **` The vCPU:Local disk ratio must be:

    * at least 1:32 for clusters in the ru-1 pool, if the configuration has more than 8 vCPU. For example, for 10 vCPU, you need a disk of at least 320 GB;
    * at least 1:16 for clusters in the ru-6 pool. For example, for 10 vCPU, you need a disk of at least 160 GB;
    * at least 1:16 for clusters in all pools except ru-1 and ru-6, if the configuration has more than 8 vCPU.

    If the configurations do not suit your needs, you can order a custom configuration. [Create a ticket](https://my.selectel.ru/tickets/create/) and specify the resource ratio.
  </TabItem>

  <TabItem value="network-volumes">
    <TabItemLabel>
      Network volume
    </TabItemLabel>

    <CustomTable>
      <table data-layout-fixed>
        <thead>
          <tr>
            <th />

            <th>In pools<br />ru-1, ru-2<br /></th><th>In the pool<br />ru-3</th><th>In pool<br />ru-6</th><th>In pools<br />ru-7, ru-8</th><th>In the pool<br />ru-9</th><th>In pools<br />uz-1, uz-2,<br />kz-1</th>
          </tr>
        </thead>

        <tbody>
          <tr>
            <th>Number of vCPU</th><td>2–20</td><td>2–32</td><td>2–120</td><td>2–122</td><td>2–68</td><td>2–32</td>
          </tr>

          <tr>
            <th>RAM `*`</th><td>8—200 GB</td><td>8—320 GB</td><td>8–700 GB</td><td>8–700 GB</td><td>8–700 GB</td><td>8–256 GB</td>
          </tr>

          <tr>
            <th>Network volume</th><td>32 GB — 10 TB</td><td>32 GB — 10 TB</td><td>32 GB — 10 TB</td><td>32 GB — 10 TB</td><td>32 GB — 10 TB</td><td>32 GB — 10 TB</td>
          </tr>
        </tbody>
      </table>
    </CustomTable>

    `*` If the configuration has more than 8 vCPUs, the vCPU:RAM ratio must be at least 1:2. For example, 10 vCPUs require at least 20 GB of RAM.

    If the configurations do not suit your needs, you can order a custom configuration. [Create a ticket](https://my.selectel.ru/tickets/create/) and specify the resource ratio.
  </TabItem>
</Tabs>

## Processors \{#available-processors}

Available processors differ between configuration lines. Processor frequency affects the speed of processing user queries, performing complex algorithms, and data operations. At 100% cloud server load, the processor runs with Turbo Boost technology. Since the processor is emulated, a lower frequency will be displayed during testing.

<CustomTable>
  <table data-sticky>
    <tbody>
      <tr>
        <th>Standard, CPU, Memory</th><td>Intel® Xeon® Scalable, AMD EPYC™ <br />2.2—2.4 GHz</td>

        <td />
      </tr>

      <tr>
        <th>HighFreq<br /><small>(in pools ru-9, ru-2, ru-8, and ke-1)</small></th><td>Intel® Xeon® Gold 6354 <br />3.0 GHz / Turbo Boost mode 3.6 GHz</td>
      </tr>

      <tr>
        <th>HighFreq<br /><small>(in pools ru-3, ru-6, ru-7, and uz-1) </small></th><td>AMD EPYC™ 9474F <br />3.6 GHz / Turbo Boost mode 3.95 GHz</td>
      </tr>

      <tr>
        <th>Flex</th><td>Intel® Xeon® Scalable, AMD EPYC™ <br />2.2—2.4 GHz</td>

        <td />
      </tr>
    </tbody>
  </table>
</CustomTable>

ClickHouse® is a registered trademark of ClickHouse, Inc. https://clickhouse.com.

<Formbricks />