celeryconfig.py

## Broker settings.
BROKER_URL = "amqp://guest:guest@localhost:5672//"

# List of modules to import when celery starts.
CELERY_IMPORTS = ("controllers", "tasks")

CELERYD_CONCURRENCY = 1

CELERY_TRACK_STARTED = True
# CELERY_DEFAULT_RATE_LIMIT = "30/m"
# CELERY_CACHE_BACKEND = 'memcached://127.0.0.1:11211/'
# CELERY_RESULT_BACKEND = "redis://localhost/0"
## Using the database to store task state and results.
# CELERY_RESULT_BACKEND = "database"
# CELERY_RESULT_DBURI = "sqlite:///dev.db"

# mysql
# CELERY_RESULT_BACKEND = "database"
# CELERY_RESULT_DBURI = "mysql://root:root@localhost/celery"
# CELERY_RESULT_ENGINE_OPTIONS = {"echo": True}

#CELERY_ANNOTATIONS = {"tasks.add": {"rate_limit": "10/s"}}

#CELERY_RESULT_BACKEND = "mongodb"
CELERY_MONGODB_BACKEND_SETTINGS = {
    "host": "localhost",
    "port": 30000,
   "database": "celery",
   "taskmeta_collection": "my_taskmeta_collection",
}