CODEWITHSUNDEEP
celeryflower
Альберт Александров
Альберт Александров

Reputation: 857

How Flower determines Celery workers?

Celery workers are being ran like this:

celery -A backend worker --broker=$REDIS_URL

Flower:

celery -A backend flower --broker=$REDIS_URL

When one run another worker Flower determines it. But how? Is there information stored about workers in Redis for example?

Upvotes: 1

Views: 1419

Answers (1)

DejanLekic
DejanLekic

Reputation: 19822

When Flower starts, it subscribes itself to be notified of most (if not all) task and worker events ( https://docs.celeryproject.org/en/stable/userguide/monitoring.html#event-reference ). When you run a new Celery worker, the moment it connects to the broker Flower will receive a new worker-online event. - That is how it finds out there is a "new worker in town"...

Upvotes: 1

Related Questions