3.4. Cluster Management
A cluster provides the resources for Presto to run queries against numerous data sources for the Presto users.
Clusters define the number of workers and their configuration for the JVM runtime system and others aspects, including the data sources. With Mission Control the creation and management of these clusters is available via a simple user interface.
The cluster management is suitable to create, update, and delete these clusters. Any user can access the cluster source management by clicking on the Clusters item in the left hand panel.
The cluster management view displays a grid of all existing clusters.
Press the + symbol on the bottom right corner to add a new cluster. The user creating a cluster is assigned as the owner of the cluster.
Clicking on a cluster name, or using the Edit link in the actions drop down, allows you to edit the cluster.
To use the cluster, you have to ensure that you have added the the configured data sources, which you want to expose to the users of the particular cluster.
The cluster management view shows the following details for each cluster:
- The user visible name of the cluster.
- The user who created the cluster and therefore is considered the owner, detailed in the security section.
- The operational state of the cluster. The view includes a play icon to start the cluster, or a stop button to shut it down. In addition a display for the number of workers is included, which includes functionality to scale the number of workers up or down.
- Created at:
- The datetime of the initial cluster creation.
You can create and edit a cluster with the help of a multiple-page form wizard. In create mode, you can navigate between steps with the Previous and Next buttons. In edit mode, you can click on any step name to navigate to it.
The forms focus on specific aspects about the cluster:
The data sources form allows you to configure the name of the cluster and add and remove configured data sources.
The Presto configuration section allows you to configure all Presto configuration values including global settings and coordinator and worker setups.
The network configuration form is used to define all network aspects of the deployment platform of EC2 or K8s, Presto cluster, and access to it.
Kubernetes configuration is only available when running Mission Control on Kubernetes as detailed in the documentation about installing Mission Control.
EC2 configuration is only available when deploying Mission Control to AWS as detailed in the documentation about installing Mission Control.