Run a chord callback even if the main tasks fail

Question

Is it possible to run a chord callback even if the main tasks failed?

I\'ve created a chord which I added a bunch of tasks and registered a callback to it. My proble

Answer 1

You just have to change manner how link_error is called. Instead of string reference, pass signature with arguments you want.

In example above, you can pass argument as following

c = chord(
    [raise_exception.s(), good.s(), raise_exception.s()], 
    callback.s().set(link_error=[error_callback.s()])
)

Just keep on mind, first argument will be task_id and further arguments will be those defined in signature.