This document describes the current stable version of Celery (5.2). For development docs, go here.

celery.worker.request

Task request.

This module defines the Request class, that specifies how tasks are executed.

class celery.worker.request.Request(message, on_ack=<function noop>, hostname=None, eventer=None, app=None, connection_errors=None, request_dict=None, task=None, on_reject=<function noop>, body=None, headers=None, decoded=False, utc=True, maybe_make_aware=<function maybe_make_aware>, maybe_iso8601=<function maybe_iso8601>, **opts)[source]

A request for task execution.

acknowledge()[source]

Acknowledge task.

acknowledged = False
property app
property args
property argsrepr
property body
cancel(pool, signal=None)[source]
chord
property connection_errors
property content_encoding
property content_type
property correlation_id
property delivery_info
errbacks
property eta
property eventer
execute(loglevel=None, logfile=None)[source]

Execute the task in a trace_task().

Parameters
  • loglevel (int) – The loglevel used by the task.

  • logfile (str) – The logfile used by the task.

execute_using_pool(pool, **kwargs)[source]

Used by the worker to send this task to the pool.

Parameters

pool (TaskPool) – The execution pool used to execute this request.

Raises

celery.exceptions.TaskRevokedError – if the task was revoked.

property expires
group
group_index
property hostname
humaninfo()[source]
id
property ignore_result
info(safe=False)[source]
property kwargs
property kwargsrepr
maybe_expire()[source]

If expired, mark the task as revoked.

property message
name
on_accepted(pid, time_accepted)[source]

Handler called when task is accepted by worker pool.

property on_ack
on_failure(exc_info, send_failed_event=True, return_ok=False)[source]

Handler called if the task raised an exception.

property on_reject
on_retry(exc_info)[source]

Handler called if the task should be retried.

on_success(failed__retval__runtime, **kwargs)[source]

Handler called if the task was successfully processed.

on_timeout(soft, timeout)[source]

Handler called if the task times out.

property parent_id
reject(requeue=False)[source]
property reply_to
property request_dict
revoked()[source]

If revoked, skip task and mark state.

property root_id
send_event(type, **fields)[source]
property store_errors
property task
property task_id
property task_name
terminate(pool, signal=None)[source]
time_limits = (None, None)
time_start = None
property type
property tzlocal
property utc
worker_pid = None