【发布时间】:2019-01-10 11:32:33
【问题描述】:
我设置了一个简单的 celery 任务。要运行它,我首先启动了 redis-server,然后激活了虚拟环境并输入“celery beat”,打开一个新的终端窗口引导到虚拟环境并输入“celery worker”
Flask==1.0.2
celery==4.2.1
requests==2.19
这是之后的错误信息:
消费者:无法连接到 amqp://guest:**@127.0.0.1:5672//:定时 出去。
这是执行“celery beat”后显示的配置详细信息:
配置-> .经纪人 -> amqp://guest:**@localhost:5672// .加载器-> celery.loaders.default.Loader .调度程序-> celery.beat.PersistentScheduler . db -> celerybeat-schedule .日志文件 -> [stderr]@%WARNING .最大间隔 -> 5.00 分钟(300 秒)
flask-proj/app/__init__.py
from flask import Flask, request, jsonify
from celery import Celery
import celeryconfig
app = Flask(__name__)
app.config.from_object('config')
def make_celery(app):
# create context tasks in celery
celery = Celery(
app.import_name,
broker=app.config['BROKER_URL']
)
celery.conf.update(app.config)
celery.config_from_object(celeryconfig)
TaskBase = celery.Task
class ContextTask(TaskBase):
abstract = True
def __call__(self, *args, **kwargs):
with app.app_context():
return TaskBase.__call__(self, *args, **kwargs)
celery.Task = ContextTask
return celery
celery = make_celery(app)
@app.route("/")
def hello():
return "Hello World!"
flask-proj/tasks/test.py
import celery
@celery.task()
def print_hello():
logger = print_hello.get_logger()
logger.info("Hello")
flask-proj/config.py
import os
REDIS_HOST = "127.0.0.1" REDIS_PORT = 6379 BROKER_URL = environ.get('REDIS_URL', "redis://{host}:{port}/0".format(
host=REDIS_HOST, port=str(REDIS_PORT))) CELERY_RESULT_BACKEND = BROKER_URL
flask-proj/celeryconfig.py
from celery.schedules import crontab
CELERY_IMPORTS = ('app.tasks.test')
CELERY_TASK_RESULT_EXPIRES = 30
CELERY_TIMEZONE = 'UTC'
CELERY_ACCEPT_CONTENT = ['json', 'msgpack', 'yaml']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERYBEAT_SCHEDULE = {
'test-celery': {
'task': 'app.tasks.test.print_hello',
# Every minute
'schedule': crontab(minute="*"),
}
}
如果我需要提供其他详细信息,请告诉我。
【问题讨论】:
-
您可以尝试将_init_.py中的
celery.conf.update(app.config) celery.config_from_object(celeryconfig)行的顺序更改为celery.config_from_object(celeryconfig) celery.conf.update(app.config )
标签: python flask celery celerybeat