Trouble with recursive remote calls

[akamaus]

Hi, the following snippet doesn't work for me. Is recursion supported?

import ray
ray.init(num_workers=10)

@ray.remote
def async_inc(k):
    if k >= 0:
        r=async_inc.remote(k-1)
        return ray.get(r) + 1
    else:
        return 0

print(ray.get(async_inc.remote(5)))

RayGetError: Could not get objectid ObjectID(1a3c2e6450938e5226f120e34f7b0e60c45e8809). It was created by remote function __main__.async_inc which failed with:

Remote function __main__.async_inc failed with:

Traceback (most recent call last):
  File "<ipython-input-1-44885ce2c17a>", line 7, in async_inc
NameError: name 'async_inc' is not defined

[robertnishihara]

Thanks! I'm closing this because it's the same as #398, and we can continue the discussion there.

This seems to have broken.. let me see if I can figure out where it broke.

[robertnishihara]

FYI, your example should work now that #453 has been merged.

However, these kinds of things are tough to pickle, so we probably won't fully support recursive remote functions in the short term.

[akamaus]

Wow, works like a charm, indeed!
Many thanks for such a prompt fix :)