# CLI Reference

## Task Management

### worker

# Command: worker

> **Hands-on:** To understand workers in Fides, see the [Worker reference](/content/docs/platform/workers/index.html).

The `fides worker` starts a celery worker listening to Fides server. This is extremely helpful for:

1. Scaling the concurrent privacy requests that Fides can process.
2. Avoiding asynchronous race conditions and performance issues.

## Usage [Permalink for this section](/content/docs/cli-reference/task/cmd-worker#usage/index.html)

Usage: `fides workers`

Running this command will start a [Celery Worker (opens in a new tab)](https://docs.celeryq.dev/en/stable/userguide/workers.html#starting-the-worker). As you can see in the example below, the worker is configured to listen for privacy request tasks and execute privacy requests. For more in-depth information on privacy requests read the [Fides Privacy Requests](/content/docs/privacy-requests/index.html) guide.

```
$ fides worker
Loaded config from: .fides/fides.toml
2023-02-26 11:19:55.400 | INFO     | fides.api.ops.tasks:_create_celery:48 - Creating Celery app...
2023-02-26 11:19:55.401 | INFO     | fides.api.ops.tasks:_create_celery:66 - Autodiscovering tasks...
2023-02-26 11:19:55.764 | INFO     | fides.api.ops.worker:start_worker:8 - Running Celery worker...

-------------- celery@127.0.0.1 v5.2.7 (dawn-chorus)
--- ***** -----
-- ******* ----
- *** --- * ---
- ** ---------- [config]
- ** ---------- .> app:         fides.api.ops.tasks:0x107e2aa00
- ** ---------- .> transport:   redis://:**@127.0.0.1:6379//
- ** ---------- .> results:     redis://:**@127.0.0.1:6379/
- *** --- * --- .> concurrency: 2 (prefork)
-- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker)
--- ***** -----
 -------------- [queues]
                .> fides            exchange=fides(direct) key=fides
                .> fidesops.messaging exchange=fidesops.messaging(direct) key=fidesops.messaging

[tasks]
  . fides.api.ops.service.messaging.message_dispatch_service.dispatch_message_task
  . fides.api.ops.service.privacy_request.request_runner_service.run_privacy_request

[2023-02-26 11:19:56,119: INFO/MainProcess] Connected to redis://:**@127.0.0.1:6379//
[2023-02-26 11:19:56,121: INFO/MainProcess] mingle: searching for neighbors
[2023-02-26 11:19:57,127: INFO/MainProcess] mingle: all alone
[2023-02-26 11:19:57,135: INFO/MainProcess] celery@127.0.0.1 ready.
```

[Overview](/content/docs/cli-reference/task "Overview"/index.html) [Overview](/content/docs/cli-reference/config "Overview"/index.html)