Flink cluster Configuration

Requirements

Flex requires at least one configured Flink cluster to operate.

Compatibility

Flex is compatible with v1 of the Flink REST API.

Support for other managed services (such as Amazon Managed Service for Apache Flink) is coming soon. Please contact us if this is a priority for your organization.

Configuration

Variable	Required	Description
FLINK_REST_URL	True	The Flink REST API endpoint to connect to. For example: http://localhost:8081
FLINK_TIMEOUT_MS	False	The timeout value in ms for all HTTP requests made to a Flink cluster. Default: 5000
FLINK_PERMISSIVE_SSL	False	True if SSL certificate validation should be disabled. Default: false

Multi Cluster

Flex will manage as many clusters as your license permits - you may have to increase the memory and CPU to ensure that the regular snapshotting process executes within thirty seconds.

To configure multiple clusters, simply repeat the connection configuration with _2, _3, _4 suffixes.

ENVIRONMENT_NAME for each resource-set is displayed in the Flex UI when switching cluster.

# Cluster 1 (Staging)

FLINK_REST_URL=https://flink-staging.corp:8081
ENVIRONMENT_NAME="Flink Staging"

# Cluster 2 (Production)

FLINK_REST_URL_2=https://flink-prod.corp:8081
FLINK_TIMEOUT_MS_2=7000
ENVIRONMENT_NAME_2="Flink Production"

Access Control

User permissions to Flink cluster resources are defined by Flink actions. See User authorization for more details.