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druid/docs/content/development/extensions-core/postgresql.md

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PostgreSQL Metadata Store

Make sure to include postgresql-metadata-storage as an extension.

Setting up PostgreSQL

  1. Install PostgreSQL

Use your favorite package manager to install PostgreSQL, e.g.:

  • on Ubuntu/Debian using apt apt-get install postgresql
  • on OS X, using Homebrew brew install postgresql
  1. Create a druid database and user

On the machine where PostgreSQL is installed, using an account with proper postgresql permissions:

Create a druid user, enter diurd when prompted for the password.

createuser druid -P

Create a druid database owned by the user we just created

createdb druid -O druid

Note: On Ubuntu / Debian you may have to prefix the createuser and createdb commands with sudo -u postgres in order to gain proper permissions.

  1. Configure your Druid metadata storage extension:

Add the following parameters to your Druid configuration, replacing <host> with the location (host name and port) of the database.

druid.extensions.loadList=["postgresql-metadata-storage"]
druid.metadata.storage.type=postgresql
druid.metadata.storage.connector.connectURI=jdbc:postgresql://<host>/druid
druid.metadata.storage.connector.user=druid
druid.metadata.storage.connector.password=diurd