> ## Documentation Index
> Fetch the complete documentation index at: https://docs.celeryroot.eu/llms.txt
> Use this file to discover all available pages before exploring further.

# Data model

> Core records stored in the Celery Root database.

## Tasks

Stored fields include:

* `task_id`, `name`, `state`, `worker`
* Timestamps: `received`, `started`, `finished`
* `runtime`, `args`, `kwargs`, `result`, `traceback`, `stamps`
* Relationships: `parent_id`, `root_id`, `group_id`, `chord_id`

## Workers

Stored fields include:

* `hostname`, `status`
* `last_heartbeat`
* `pool_size`, `active_tasks`
* `registered_tasks`, `queues`
* `broker_url`

## Schedules

Stored fields include:

* `schedule_id`, `name`, `task`, `schedule`
* `args`, `kwargs`
* `enabled`
* `last_run_at`, `total_run_count`
* `app`

## Task relations

Relations are recorded for graphing:

* `root_id`, `parent_id`, `child_id`, `relation`

## Task stats

Aggregated statistics include:

* `count`, `min_runtime`, `max_runtime`, `avg_runtime`, `p50`, `p95`, `p99`