ClickHouse/docs/en/getting-started/install.md

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Installing ClickHouse

You have three options for getting up and running with ClickHouse:

• ClickHouse Cloud: The official ClickHouse as a service, - built by, maintained and supported by the creators of ClickHouse
• Self-managed ClickHouse: ClickHouse can run on any Linux, FreeBSD, or Mac OS X with x86-64, ARM, or PowerPC64LE CPU architecture
• Docker Image: Read the guide with the official image in Docker Hub

ClickHouse Cloud

The quickest and easiest way to get up and running with ClickHouse is to create a new service in ClickHouse Cloud:

Once your Cloud service is provisioned, you will be able to connect to it and start inserting data.

Self-Managed Install

1. The simplest way to download ClickHouse locally is to run the following command. If your operating system is supported, an appropriate ClickHouse binary will be downloaded and made runnable:

curl https://clickhouse.com/ | sh

1. Run the install command, which defines a collection of useful symlinks along with the files and folders used by ClickHouse - all of which you can see in the output of the install script:

sudo ./clickhouse install

1. At the end of the install script, you are prompted for a password for the default user. Feel free to enter a password, or you can optionally leave it blank:

Creating log directory /var/log/clickhouse-server.
Creating data directory /var/lib/clickhouse.
Creating pid directory /var/run/clickhouse-server.
 chown -R clickhouse:clickhouse '/var/log/clickhouse-server'
 chown -R clickhouse:clickhouse '/var/run/clickhouse-server'
 chown  clickhouse:clickhouse '/var/lib/clickhouse'
Enter password for default user:

You should see the following output:

 ClickHouse has been successfully installed.

 Start clickhouse-server with:
  sudo clickhouse start

 Start clickhouse-client with:
  clickhouse-client

1. Run the following command to start the ClickHouse server:

sudo clickhouse start

:::tip The Quick Start walks through the steps to download and run ClickHouse, connect to it, and insert data. :::

Available Installation Options

From DEB Packages

It is recommended to use official pre-compiled deb packages for Debian or Ubuntu. Run these commands to install packages:

sudo apt-get install -y apt-transport-https ca-certificates dirmngr
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 8919F6BD2B48D754

echo "deb https://packages.clickhouse.com/deb stable main" | sudo tee \
    /etc/apt/sources.list.d/clickhouse.list
sudo apt-get update

sudo apt-get install -y clickhouse-server clickhouse-client

sudo service clickhouse-server start
clickhouse-client # or "clickhouse-client --password" if you've set up a password.

Deprecated Method for installing deb-packages

sudo apt-get install apt-transport-https ca-certificates dirmngr
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E0C56BD4

echo "deb https://repo.clickhouse.com/deb/stable/ main/" | sudo tee \
    /etc/apt/sources.list.d/clickhouse.list
sudo apt-get update

sudo apt-get install -y clickhouse-server clickhouse-client

sudo service clickhouse-server start
clickhouse-client # or "clickhouse-client --password" if you set up a password.

Migration Method for installing the deb-packages

sudo apt-key del E0C56BD4
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 8919F6BD2B48D754
echo "deb https://packages.clickhouse.com/deb stable main" | sudo tee \
    /etc/apt/sources.list.d/clickhouse.list
sudo apt-get update

sudo apt-get install -y clickhouse-server clickhouse-client

sudo service clickhouse-server start
clickhouse-client # or "clickhouse-client --password" if you set up a password.

You can replace stable with lts to use different release kinds based on your needs.

You can also download and install packages manually from here.

Packages

• clickhouse-common-static — Installs ClickHouse compiled binary files.
• clickhouse-server — Creates a symbolic link for clickhouse-server and installs the default server configuration.
• clickhouse-client — Creates a symbolic link for clickhouse-client and other client-related tools. and installs client configuration files.
• clickhouse-common-static-dbg — Installs ClickHouse compiled binary files with debug info.

:::info If you need to install specific version of ClickHouse you have to install all packages with the same version: sudo apt-get install clickhouse-server=21.8.5.7 clickhouse-client=21.8.5.7 clickhouse-common-static=21.8.5.7 :::

From RPM Packages

It is recommended to use official pre-compiled rpm packages for CentOS, RedHat, and all other rpm-based Linux distributions.

First, you need to add the official repository:

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://packages.clickhouse.com/rpm/clickhouse.repo
sudo yum install -y clickhouse-server clickhouse-client

sudo /etc/init.d/clickhouse-server start
clickhouse-client # or "clickhouse-client --password" if you set up a password.

Deprecated Method for installing rpm-packages

sudo yum install yum-utils
sudo rpm --import https://repo.clickhouse.com/CLICKHOUSE-KEY.GPG
sudo yum-config-manager --add-repo https://repo.clickhouse.com/rpm/clickhouse.repo
sudo yum install clickhouse-server clickhouse-client

sudo /etc/init.d/clickhouse-server start
clickhouse-client # or "clickhouse-client --password" if you set up a password.

You can replace stable with lts to use different release kinds based on your needs.

Then run these commands to install packages:

sudo yum install clickhouse-server clickhouse-client

You can also download and install packages manually from here.

From Tgz Archives

It is recommended to use official pre-compiled tgz archives for all Linux distributions, where installation of deb or rpm packages is not possible.

The required version can be downloaded with curl or wget from repository https://packages.clickhouse.com/tgz/. After that downloaded archives should be unpacked and installed with installation scripts. Example for the latest stable version:

LATEST_VERSION=$(curl -s https://packages.clickhouse.com/tgz/stable/ | \
    grep -Eo '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | sort -V -r | head -n 1)
export LATEST_VERSION

case $(uname -m) in
  x86_64) ARCH=amd64 ;;
  aarch64) ARCH=arm64 ;;
  *) echo "Unknown architecture $(uname -m)"; exit 1 ;;
esac

for PKG in clickhouse-common-static clickhouse-common-static-dbg clickhouse-server clickhouse-client
do
  curl -fO "https://packages.clickhouse.com/tgz/stable/$PKG-$LATEST_VERSION-${ARCH}.tgz" \
    || curl -fO "https://packages.clickhouse.com/tgz/stable/$PKG-$LATEST_VERSION.tgz"
done

tar -xzvf "clickhouse-common-static-$LATEST_VERSION-${ARCH}.tgz" \
  || tar -xzvf "clickhouse-common-static-$LATEST_VERSION.tgz"
sudo "clickhouse-common-static-$LATEST_VERSION/install/doinst.sh"

tar -xzvf "clickhouse-common-static-dbg-$LATEST_VERSION-${ARCH}.tgz" \
  || tar -xzvf "clickhouse-common-static-dbg-$LATEST_VERSION.tgz"
sudo "clickhouse-common-static-dbg-$LATEST_VERSION/install/doinst.sh"

tar -xzvf "clickhouse-server-$LATEST_VERSION-${ARCH}.tgz" \
  || tar -xzvf "clickhouse-server-$LATEST_VERSION.tgz"
sudo "clickhouse-server-$LATEST_VERSION/install/doinst.sh" configure
sudo /etc/init.d/clickhouse-server start

tar -xzvf "clickhouse-client-$LATEST_VERSION-${ARCH}.tgz" \
  || tar -xzvf "clickhouse-client-$LATEST_VERSION.tgz"
sudo "clickhouse-client-$LATEST_VERSION/install/doinst.sh"

Deprecated Method for installing tgz archives

export LATEST_VERSION=$(curl -s https://repo.clickhouse.com/tgz/stable/ | \
    grep -Eo '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | sort -V -r | head -n 1)
curl -O https://repo.clickhouse.com/tgz/stable/clickhouse-common-static-$LATEST_VERSION.tgz
curl -O https://repo.clickhouse.com/tgz/stable/clickhouse-common-static-dbg-$LATEST_VERSION.tgz
curl -O https://repo.clickhouse.com/tgz/stable/clickhouse-server-$LATEST_VERSION.tgz
curl -O https://repo.clickhouse.com/tgz/stable/clickhouse-client-$LATEST_VERSION.tgz

tar -xzvf clickhouse-common-static-$LATEST_VERSION.tgz
sudo clickhouse-common-static-$LATEST_VERSION/install/doinst.sh

tar -xzvf clickhouse-common-static-dbg-$LATEST_VERSION.tgz
sudo clickhouse-common-static-dbg-$LATEST_VERSION/install/doinst.sh

tar -xzvf clickhouse-server-$LATEST_VERSION.tgz
sudo clickhouse-server-$LATEST_VERSION/install/doinst.sh
sudo /etc/init.d/clickhouse-server start

tar -xzvf clickhouse-client-$LATEST_VERSION.tgz
sudo clickhouse-client-$LATEST_VERSION/install/doinst.sh

For production environments, it’s recommended to use the latest stable-version. You can find its number on GitHub page https://github.com/ClickHouse/ClickHouse/tags with postfix -stable.

From Docker Image

To run ClickHouse inside Docker follow the guide on Docker Hub. Those images use official deb packages inside.

From Sources

To manually compile ClickHouse, follow the instructions for Linux or Mac OS X.

You can compile packages and install them or use programs without installing packages.

  Client: <build_directory>/programs/clickhouse-client
  Server: <build_directory>/programs/clickhouse-server

You’ll need to create data and metadata folders manually and chown them for the desired user. Their paths can be changed in server config (src/programs/server/config.xml), by default they are:

  /var/lib/clickhouse/data/default/
  /var/lib/clickhouse/metadata/default/

On Gentoo, you can just use emerge clickhouse to install ClickHouse from sources.

Launch

To start the server as a daemon, run:

$ sudo clickhouse start

There are also other ways to run ClickHouse:

$ sudo service clickhouse-server start

If you do not have service command, run as

$ sudo /etc/init.d/clickhouse-server start

If you have systemctl command, run as

$ sudo systemctl start clickhouse-server.service

See the logs in the /var/log/clickhouse-server/ directory.

If the server does not start, check the configurations in the file /etc/clickhouse-server/config.xml.

You can also manually launch the server from the console:

$ clickhouse-server --config-file=/etc/clickhouse-server/config.xml

In this case, the log will be printed to the console, which is convenient during development. If the configuration file is in the current directory, you do not need to specify the --config-file parameter. By default, it uses ./config.xml.

ClickHouse supports access restriction settings. They are located in the users.xml file (next to config.xml). By default, access is allowed from anywhere for the default user, without a password. See user/default/networks. For more information, see the section “Configuration Files”.

After launching server, you can use the command-line client to connect to it:

$ clickhouse-client

By default, it connects to localhost:9000 on behalf of the user default without a password. It can also be used to connect to a remote server using --host argument.

The terminal must use UTF-8 encoding. For more information, see the section “Command-line client”.

Example:

$ ./clickhouse-client
ClickHouse client version 0.0.18749.
Connecting to localhost:9000.
Connected to ClickHouse server version 0.0.18749.

:) SELECT 1

SELECT 1

┌─1─┐
│ 1 │
└───┘

1 rows in set. Elapsed: 0.003 sec.

:)

Congratulations, the system works!

To continue experimenting, you can download one of the test data sets or go through tutorial.

Recommendations for Self-Managed ClickHouse

ClickHouse can run on any Linux, FreeBSD, or Mac OS X with x86-64, ARM, or PowerPC64LE CPU architecture.

ClickHouse uses all hardware resources available to process data.

ClickHouse tends to work more efficiently with a large number of cores at a lower clock rate than with fewer cores at a higher clock rate.

We recommend using a minimum of 4GB of RAM to perform non-trivial queries. The ClickHouse server can run with a much smaller amount of RAM, but queries will then frequently abort.

The required volume of RAM generally depends on:

• The complexity of queries.
• The amount of data that is processed in queries.

To calculate the required volume of RAM, you may estimate the size of temporary data for GROUP BY, DISTINCT, JOIN and other operations you use.

To reduce memory consumption, ClickHouse can swap temporary data to external storage. See GROUP BY in External Memory for details.

We recommend to disable the operating system's swap file in production environments.

The ClickHouse binary requires at least 2.5 GB of disk space for installation.

The volume of storage required for your data may be calculated separately based on

• an estimation of the data volume.

  You can take a sample of the data and get the average size of a row from it. Then multiply the value by the number of rows you plan to store.

• The data compression coefficient.

  To estimate the data compression coefficient, load a sample of your data into ClickHouse, and compare the actual size of the data with the size of the table stored. For example, clickstream data is usually compressed by 6-10 times.

To calculate the final volume of data to be stored, apply the compression coefficient to the estimated data volume. If you plan to store data in several replicas, then multiply the estimated volume by the number of replicas.

For distributed ClickHouse deployments (clustering), we recommend at least 10G class network connectivity.

Network bandwidth is critical for processing distributed queries with a large amount of intermediate data. Besides, network speed affects replication processes.