synapse/docs/systemd-with-workers/workers/event_persister.yaml

worker_app: synapse.app.generic_worker
worker_name: event_persister1 

# The replication listener on the main synapse process.
worker_replication_host: 127.0.0.1
worker_replication_http_port: 9093

worker_listeners:
  - type: http
    port: 8034
    resources:
      - names: [replication]

  # Enable listener if this stream writer handles endpoints for the `typing` or
  # `to_device` streams. Uses a different port to the `replication` listener to
  # avoid exposing the `replication` listener publicly.
  #
  #- type: http
  #  port: 8035
  #  resources:
  #    - names: [client]

worker_log_config: /etc/matrix-synapse/event-persister-log.yaml