Deprecation noticeThe Hazelcast PubSub component has been deprecated due to inherent lack of support for “at least once” delivery guarantee, and will be removed in a future Dapr release.
To setup hazelcast pubsub create a component of type
pubsub.hazelcast. See this guide on how to create and apply a pubsub configuration.
apiVersion: dapr.io/v1alpha1 kind: Component metadata: name: hazelcast-pubsub spec: type: pubsub.hazelcast version: v1 metadata: - name: hazelcastServers value: "hazelcast:3000,hazelcast2:3000"
WarningThe above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described here.
Spec metadata fields
|connectionString||Y||A comma delimited string of servers. Example: “hazelcast:3000,hazelcast2:3000”||
|backOffMaxRetries||N||The maximum number of retries to process the message before returning an error. Defaults to
Create a Hazelcast instance
You can run Hazelcast locally using Docker:
docker run -e JAVA_OPTS="-Dhazelcast.local.publicAddress=127.0.0.1:5701" -p 5701:5701 hazelcast/hazelcast
You can then interact with the server using the
The easiest way to install Hazelcast on Kubernetes is by using the Helm chart.
- Basic schema for a Dapr component
- Read this guide for instructions on configuring pub/sub components
- Pub/Sub building block
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