Zookeeper

Detailed information on the Zookeeper state store component

Component format

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

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: <NAME>
spec:
  type: state.zookeeper
  version: v1
  metadata:
  - name: servers
    value: <REPLACE-WITH-COMMA-DELIMITED-SERVERS> # Required. Example: "zookeeper.default.svc.cluster.local:2181"
  - name: sessionTimeout
    value: <REPLACE-WITH-SESSION-TIMEOUT> # Required. Example: "5s"
  - name: maxBufferSize
    value: <REPLACE-WITH-MAX-BUFFER-SIZE> # Optional. default: "1048576"
  - name: maxConnBufferSize
    value: <REPLACE-WITH-MAX-CONN-BUFFER-SIZE> # Optional. default: "1048576"
  - name: keyPrefixPath
    value: <REPLACE-WITH-KEY-PREFIX-PATH> # Optional.

Warning

The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described here.

Spec metadata fields

Field	Required	Details	Example
servers	Y	Comma delimited list of servers	`"zookeeper.default.svc.cluster.local:2181"`
sessionTimeout	Y	The session timeout value	`"5s"`
maxBufferSize	N	The maximum size of buffer. Defaults to `"1048576"`	`"1048576"`
maxConnBufferSize	N	The maximum size of connection buffer. Defaults to `"1048576`"	`"1048576"`
keyPrefixPath	N	The key prefix path in Zookeeper. No default	`"dapr"`

You can run Zookeeper locally using Docker:

docker run --name some-zookeeper --restart always -d zookeeper

You can then interact with the server using localhost:2181.

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

helm repo add incubator http://storage.googleapis.com/kubernetes-charts-incubator
helm install zookeeper incubator/zookeeper

This installs Zookeeper into the default namespace. To interact with Zookeeper, find the service with: kubectl get svc zookeeper.

For example, if installing using the example above, the Zookeeper host address would be:

zookeeper.default.svc.cluster.local:2181

Basic schema for a Dapr component
Read this guide for instructions on configuring state store components
State management building block

Feedback

Was this page helpful?

Glad to hear it! Please tell us how we can improve.

Sorry to hear that. Please tell us how we can improve.

Last modified November 19, 2024: Merge pull request #4407 from hhunter-ms/issue_3321 (1d418a4)