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Follow Your Celery Tasks

by Nicolas Crocfer At: FOSDEM 2020 https://video.fosdem.org/2020/UB2.252... All Python developer who want to run asynchronous tasks should know Celery. If you have already used it, you know how great it is ! But you also discovered how it can be complicated to follow the state of a complex workflow. Celery Director is a tool we created at OVH to fix this problem : using some concepts of Event Sourcing, Celery Director helps us to follow the whole lifecycle of our workflows. It allows us to check when a problem occurred and relaunch the whole DAG (or just a subpart if tasks are not completely idempotent). During this talk we will introduce you the different concepts of Celery Director then we'll make a demonstration of it. All Python developer who want to run asynchronous tasks should know Celery. If you have already used it, you know how great it is ! But you also discovered how it can be complicated to follow the state of a complex workflow. Celery Director is a tool we created at OVH to fix this problem : using some concepts of Event Sourcing, Celery Director helps us to follow the whole lifecycle of our workflows. It allows us to check when a problem occurred and relaunch the whole DAG (or just a subpart if tasks are not completely idempotent). During this talk we will introduce you the different concepts of Celery Director then we'll make a demonstration of it. Room: UB2.252A (Lameere) Scheduled start: 2020-02-01 13:00:00