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Detailed information on the RethinkDB state store component

Setup RethinkDB state store

You can run RethinkDB locally using Docker:

docker run --name rethinkdb -v "$PWD:/rethinkdb-data" -d rethinkdb:latest

To connect to the admin UI:

open "http://$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' rethinkdb):8080"

Create a Dapr component

The next step is to create a Dapr component for RethinkDB.

Create the following YAML file named rethinkdb.yaml

kind: Component
  name: <NAME>
  namespace: <NAMESPACE>
  type: state.rethinkdb
  version: v1
  - name: address
    value: <REPLACE-RETHINKDB-ADDRESS> # Required, e.g. or rethinkdb.default.svc.cluster.local:28015).
  - name: database
    value: <REPLACE-RETHINKDB-DB-NAME> # Required, e.g. dapr (alpha-numerics only)
  - name: table
    value: # Optional
  - name: username
    value: # Optional
  - name: password
    value: # Optional
  - name: archive
    value: # Optional (whether or not store should keep archive table of all the state changes)

RethinkDB state store supports transactions so it can be used to persist Dapr Actor state. By default, the state will be stored in table name daprstate in the specified database.

Additionally, if the optional archive metadata is set to true, on each state change, the RethinkDB state store will also log state changes with timestamp in the daprstate_archive table. This allows for time series analyses of the state managed by Dapr.

Last modified July 7, 2022: update nav bar v0.11 (#2633) (b309d3d)