我有一个简单的芹菜任务设置。为了运行它,我首先关闭redis-server,然后激活虚拟环境并进入“celery beat”,打开一个新的终端窗口进入虚拟环境并进入“芹菜工人”
Flask==1.0.2
celery==4.2.1
requests==2.19
这是之后的错误消息:
consumer:无法连接到amqp:// guest:** @ 127.0.0.1:5672 //:超时。
这是执行'celery beat'后显示的配置详细信息:
配置 - >。经纪人 - > amqp://客人:** @ localhost:5672 //。 loader - > celery.loaders.default.Loader。 scheduler - > celery.beat.PersistentScheduler。 db - > celerybeat-schedule。 logfile - > [stderr] @%警告。 maxinterval - > 5.00分钟(300s)
烧瓶-PROJ /应用/ __ 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!"
烧瓶PROJ /任务/ test.py
import celery
@celery.task()
def print_hello():
logger = print_hello.get_logger()
logger.info("Hello")
烧瓶-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
烧瓶-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。
从celery.conf.update(app.config)
函数中删除make_celery()
线,因此它会像,
def make_celery(app):
# create context tasks in celery
celery = Celery(
app.import_name,
broker=app.config['BROKER_URL']
)
celery.conf.update(app.config) # remove this line.
celery.config_from_object(celeryconfig)
TaskBase = celery.Task
并且,将flask-proj/config.py
的内容复制到flask-proj/celeryconfig.py
。
因此他flask-proj/celeryconfig.py
会像,
from celery.schedules import crontab
import os
REDIS_HOST = "127.0.0.1"
REDIS_PORT = 6379
BROKER_URL = os.environ.get(
'REDIS_URL', "redis://{host}:{port}/0".format(
host=REDIS_HOST, port=str(REDIS_PORT)))
CELERY_RESULT_BACKEND = BROKER_URL
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="*"),
}
}
amqp是rabbitmq而不是redis。
Redis通常是
redis://:password@hostname:port/db_number
我会手动配置以查看它是否有效。
flask_app.config.update(
CELERY_BROKER_URL='redis://localhost:6379',
CELERY_RESULT_BACKEND='redis://localhost:6379'
)
在Django中遇到同样的问题,但我的问题是在settings.py中使用“BROKER_URL”而不是“CELERY_BROKER_URL”。 Celery没有找到URL并且默认为rabbitmq端口而不是redis端口。