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Detailed information on the Cassandra state store component

Component format

To setup Cassandra state store create a component of type state.cassandra. See this guide on how to create and apply a state store configuration.

kind: Component
  name: <NAME>
  namespace: <NAMESPACE>
  type: state.cassandra
  version: v1
  - name: hosts
    value: <REPLACE-WITH-COMMA-DELIMITED-HOSTS> # Required. Example: cassandra.cassandra.svc.cluster.local
  - name: username
    value: <REPLACE-WITH-PASSWORD> # Optional. default: ""
  - name: password
    value: <REPLACE-WITH-PASSWORD> # Optional. default: ""
  - name: consistency
    value: <REPLACE-WITH-CONSISTENCY> # Optional. default: "All"
  - name: table
    value: <REPLACE-WITH-TABLE> # Optional. default: "items"
  - name: keyspace
    value: <REPLACE-WITH-KEYSPACE> # Optional. default: "dapr"
  - name: protoVersion
    value: <REPLACE-WITH-PROTO-VERSION> # Optional. default: "4"
  - name: replicationFactor
    value: <REPLACE-WITH-REPLICATION-FACTOR> #  Optional. default: "1"

Spec metadata fields

Field Required Details Example
hosts Y Comma separated value of the hosts "cassandra.cassandra.svc.cluster.local".
port N Port for communication. Default "9042" "9042"
username Y The username of database user. No default "user"
password Y The password for the user "password"
consistency N The consistency values "All", "Quorum"
table N Table name. Defaults to "items" "items", "tab"
keyspace N The cassandra keyspace to use. Defaults to "dapr" "dapr"
protoVersion N The proto version for the client. Defaults to "4" "3", "4"
replicationFactor N The replication factor for the calls. Defaults to "1" "3"

Setup Cassandra

You can run Cassandra locally with the Datastax Docker image:

docker run -e DS_LICENSE=accept --memory 4g --name my-dse -d datastax/dse-server -g -s -k

You can then interact with the server using localhost:9042.

The easiest way to install Cassandra on Kubernetes is by using the Helm chart:

kubectl create namespace cassandra
helm install cassandra incubator/cassandra --namespace cassandra

This installs Cassandra into the cassandra namespace by default. To interact with Cassandra, find the service with: kubectl get svc -n cassandra.

For example, if installing using the example above, the Cassandra DNS would be: