Recipes

A recipe is a script that runs on all nodes of a selected host group at a specific time. You can use recipes to create and run scripts that perform specific tasks on your Cloudera Data Hub, Data Lake, or FreeIPA cluster nodes.

You can use recipes for tasks such as installing additional software or performing advanced cluster configuration. For example, you can use a recipe to put a JAR file on the Hadoop classpath.

Recipes can be uploaded and managed via the Cloudera web interface or CLI and then selected, when needed, for a specific cluster and for a specific host group. If selected, they will be executed on a specific host group at a specified time.

Recipes are stored on the Cloudera Manager server for the lifetime of the master node, and are executed at specific times of your choosing:

• pre-service-deployment (formerly pre-cloudera-manager-start and pre-cluster-manager-start): During a Data Hub, Data Lake, or environment deployment, the script will be executed on every node before the CM server starts, and after node repair or OS upgrade of a cluster.
• post-cloudera-manager-start: During a Cloudera Data Hub or Data Lake deployment, the script will be executed on every node after the Cloudera Manager server starts, but before cluster installation. post-cluster-manager start recipes are also executed after node repair or OS upgrade of a cluster. This option is not available for FreeIPA recipes.
• post-service-deployment (formerly post-cluster-install): The script will be executed on every node after cluster installation on the CM server is finished.
• pre-termination: The script will be executed on every node before cluster termination.