django-celery问题未在特定时间运行

时间：2018-03-16 18:42:46

标签： django celery celerybeat djcelery

我遇到的问题是django-celery没有在指定的时间运行，但它总是每1分钟运行一次。下面我粘贴了tasks.py，settings.py和celery.py。我用djcelery和芹菜测试过。我正在使用芹菜拍。

celery.py（编辑为仅提供具体内容并避免保密信息。）： - 

from __future__ import absolute_import, unicode_literals

import os

from celery import Celery
from django.conf import settings
from celery.schedules import crontab
from datetime import timedelta



# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'netadc.settings')

app = Celery('netadc')
app.config_from_object(settings, namespace='CELERY')
app.autodiscover_tasks()

app = Celery('proj',
             broker='redis://',
             backend='redis://',
             include=['standalone.tasks'])



CELERY_BEAT_SCHEDULE = {
    "runs-every-30-seconds": {
        "task": "tasks.cron_span",
        "schedule": 30.0,
        "args": ()
    },
}

if __name__ == '__main__':
    app.start()

settings.py： - 

# Application definition

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'home',
    'ivpn',
    'nsp',
    'lib',
    'ciscoaci',
    'standalone',
    'arista',
    'spa',
    'inet',
    #'django_countries',
    'djcelery',
    #'debug_toolbar',
    'celery',
    'django_celery_beat',
)

ROOT_URLCONF = 'netadc.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'ivpn.context_processors.vpnreq_info',
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                #'django.core.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'netadc.wsgi.application'

# Internationalization
# https://docs.djangoproject.com/en/1.8/topics/i18n/

LANGUAGE_CODE = 'en-us'

#TIME_ZONE = 'UTC'
TIME_ZONE = 'America/Phoenix'

USE_TZ = True

## Celery specific settings
CELERY_BROKER_URL = 'redis://localhost:6379/0'
CELERYBEAT_SCHEDULER = 'djcelery.schedulers.DatabaseScheduler'
CELERY_RESULT_BACKEND = 'redis://'
CELERY_ACCEPT_CONTENT = ['json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERY_TIMEZONE = 'America/Phoenix'
CELERY_ENABLE_UTC = True

tasks.py： - 

from __future__ import absolute_import, division, print_function
# -*- coding: utf-8 -*-
from __builtin__ import *
#from future.builtins.disabled import *
from django.template.context_processors import csrf
from django.http import Http404
from django.shortcuts import get_object_or_404,render
from django.http import HttpResponse, HttpResponseRedirect
from django.template import loader
# Create your views here.
from django.shortcuts import render
#from django.urls import 
from django.core.urlresolvers import reverse
import json
import os
import requests
import argparse
import collections
import datetime
from django.template import RequestContext
from standalone.forms import UploadFileForm
from django.contrib import messages
#import pyexcel.ext.xls
import urllib
import urllib2
import cookielib
import sys, getopt
import StringIO,contextlib
import xml.etree.ElementTree as ET
from standalone.views import *
from standalone.models import Fabric, Span
#from celery.decorators import task
from celery import task
from celery.utils.log import get_task_logger
from celery import shared_task
from celery.schedules import crontab
from celery.decorators import periodic_task
from time import time as time1
import time
from datetime import timedelta
import datetime

logger = get_task_logger(__name__)
@task()
def cron_span():
      ########### code #############################

我已经在所有地方更改了时区，并且我还使用以下命令更新了数据库调度程序： - 来自djcelery.models import PeriodicTask PeriodicTask.objects.update（last_run_at =无）

任何帮助都将不胜感激。

芹菜原木： - 

[2018-03-18 11:09:55,078: INFO/Beat] Writing entries...
[2018-03-18 11:10:00,001: INFO/Beat] Scheduler: Sending due task standalone.tasks.cron_span (standalone.tasks.cron_span)
[2018-03-18 11:10:00,003: INFO/MainProcess] Received task: standalone.tasks.cron_span[707c0da7-d76b-4c4d-92a4-3839f5cd6527]  
[2018-03-18 11:10:00,005: WARNING/ForkPoolWorker-2] where are we
[2018-03-18 11:10:00,011: WARNING/ForkPoolWorker-2] each_all_values
[2018-03-18 11:10:00,011: WARNING/ForkPoolWorker-2] <type 'datetime.datetime'>
[2018-03-18 11:10:00,011: WARNING/ForkPoolWorker-2] each_all_values.time_span
[2018-03-18 11:10:00,012: WARNING/ForkPoolWorker-2] <type 'float'>
[2018-03-18 11:10:00,012: WARNING/ForkPoolWorker-2] present_time
[2018-03-18 11:10:00,013: ERROR/ForkPoolWorker-2] Task standalone.tasks.cron_span[707c0da7-d76b-4c4d-92a4-3839f5cd6527] raised unexpected: ValueError('invalid literal for float(): 2018-03-12 21:22:05',)
Traceback (most recent call last):
  File "/root/.venvs/netadc/lib/python2.7/site-packages/celery-4.1.0-py2.7.egg/celery/app/trace.py", line 374, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/root/.venvs/netadc/lib/python2.7/site-packages/celery-4.1.0-py2.7.egg/celery/app/trace.py", line 629, in __protected_call__
    return self.run(*args, **kwargs)
  File "/apps/workspace/netadc/standalone/tasks.py", line 57, in cron_span
    time_taken = present_time - float(each_all_values.time_span.strftime("%Y-%m-%d %H:%M:%S")) # time_taken is in seconds
ValueError: invalid literal for float(): 2018-03-12 21:22:05



[2018-03-18 11:11:00,001: INFO/Beat] Scheduler: Sending due task standalone.tasks.cron_span (standalone.tasks.cron_span)
[2018-03-18 11:11:00,004: INFO/MainProcess] Received task: standalone.tasks.cron_span[23928119-c93a-41c5-9bc7-e2c909324b6f]  
[2018-03-18 11:11:00,005: WARNING/ForkPoolWorker-5] where are we
[2018-03-18 11:11:00,012: WARNING/ForkPoolWorker-5] each_all_values
[2018-03-18 11:11:00,012: WARNING/ForkPoolWorker-5] <type 'datetime.datetime'>
[2018-03-18 11:11:00,012: WARNING/ForkPoolWorker-5] each_all_values.time_span
[2018-03-18 11:11:00,012: WARNING/ForkPoolWorker-5] <type 'float'>
[2018-03-18 11:11:00,013: WARNING/ForkPoolWorker-5] present_time
[2018-03-18 11:11:00,014: ERROR/ForkPoolWorker-5] Task standalone.tasks.cron_span[23928119-c93a-41c5-9bc7-e2c909324b6f] raised unexpected: ValueError('invalid literal for float(): 2018-03-12 21:22:05',)
Traceback (most recent call last):
  File "/root/.venvs/netadc/lib/python2.7/site-packages/celery-4.1.0-py2.7.egg/celery/app/trace.py", line 374, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/root/.venvs/netadc/lib/python2.7/site-packages/celery-4.1.0-py2.7.egg/celery/app/trace.py", line 629, in __protected_call__
    return self.run(*args, **kwargs)
  File "/apps/workspace/netadc/standalone/tasks.py", line 57, in cron_span
    time_taken = present_time - float(each_all_values.time_span.strftime("%Y-%m-%d %H:%M:%S")) # time_taken is in seconds
ValueError: invalid literal for float(): 2018-03-12 21:22:05

2 个答案:

答案 0 :(得分：0)

如果你想每30秒运行一次任务，那么你应该这样做：

CELERY_BEAT_SCHEDULE = {
    "runs-every-30-seconds": {
        "task": "tasks.cron_span",
        "schedule": timedelta(seconds=30),
        "args": ()
    },
}

适用于旧芹菜版本。

答案 1 :(得分：0)

请确保在CELERY_ENABLE_UTC = False文件中设置了settings.py，否则celery会将您的日程表转换为UTC。

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