Hi, I have a question about accessing attribute on ray actors. In order to access an attribute on an actor, you need to create a method for that like that get_counter in the following example. import ray @ray.remote class Counter: def __init__(self): self.value = 0 def increment(s…

@Y_C try this: class Dependent(): def __init__(self): self.attribute = 0 @ray.remote class Actor: def __init__(self, dependent: Dependent): self.dependent = dependent def update_dependent(self): self.dependent.attribute = 5 def get_dependent_attribute(self…

@Y_C Just curious, what’s the use case that requires a dependent class keep track of an attribute. Actors are designed to be stateful, and as such they can be written to provide a stateful service. HTH Cheers Jules

Thanks for your reply, actually I made a typo in the question, missed the .remote() part, in my script it actually exists. And I found out that my problem turns out to be completely something else. In the driver script I have something to write to google cloud storage, in the ray log, I can confirm…

@Y_C From the code included, it’s hard to discern what the actor RemoteTrainingPipeline is doing and the order, if any, data_loader, trainer, model_loader, and writer are doing. And how is the resulting metadata dictionary is created or populated and returned in start_training.remote. Here is an ex…

Thanks so much for the reply. I wasn’t very clear in the previous comment. Actually my original question was never an issue, I mistaken it as the root cause of an empty file. After adding extensive logging, I found out that the attribute on the dependent class was updated with no problem. I thought …

Understanding ray actor

Ray Core

Y_C June 20, 2023, 9:47pm 7

@Jules_Damji do you mind have a look at my other related question? Add metadata to a ray job. It’s about metadata of a ray job. Thanks so much!

Topic		Replies	Views
How can I get attribute of a actor Ray Core	2	1332	December 15, 2023
How does ray obtain the attributes on the corresponding remote worker through the actor?	0	262	February 8, 2023
Use a class defined in a detached ray actor Ray Core	5	90	January 26, 2025
Sharing Classes with large data structures for multiprocessing Ray Core	2	429	July 22, 2022
Ray remote Actors with modularized codebase Ray Client	1	516	December 21, 2021

Understanding ray actor

Related topics