Download Citus Open Source

You can download & install Citus open source packages for a multitude of different operating systems. The steps below will get you started and then send you to Citus Docs for more instructions on installing Citus.

Looking for the Citus source code? Find Citus on GitHub.

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Install Citus on multiple nodes with Ubuntu or Debian, or Red Hat.
To install with Ubuntu or Debian, install the pgdg repository & the Citus extension on all nodes:
curl https://install.citusdata.com/community/deb.sh | sudo bash
sudo apt-get -y install postgresql-18-citus-14.1
sudo pg_conftool 18 main set shared_preload_libraries citus

CONFIGURE THE CLUSTER

To install with Red Hat, install the pgdg repository & the Citus extension on all nodes:
curl https://install.citusdata.com/community/rpm.sh | sudo bash
sudo yum install -y citus141_18
sudo service postgresql-18 initdb || sudo /usr/pgsql-18/bin/postgresql-18-setup initdb
echo "shared_preload_libraries = 'citus'" | sudo tee -a /var/lib/pgsql/18/data/postgresql.conf

CONFIGURE THE CLUSTER