Running treeherder at full speed requires a number of services to be started. For an overview of all the services, see the diagram below
All the services marked with a yellow background are python scripts that can be found in the bin directory. In a typical deployment they are monitored by something like supervisord. Follows a description of those services.
A wsgi server in charge of serving the restful api and the static UI assets.
Celery task worker
This service executes asynchronous tasks that can be by triggered by the celerybeat task scheduler or by another worker.
Celerybeat task scheduler
A scheduler process in charge of running periodic tasks.
Celerymon task monitor
This process provides an interface to the status of the worker and the running tasks. It can be used to provide such information to monitoring tools like munin.