[RFC] More programmable API that has same output as `ray memory` command

[YarShev]

Describe your feature request

Hi guys,

It would be awesome to add API that has same output as ray memory command.
Also, it would be good to add some additional output info for ray.objects(). For example, node IP, IDs of objects which are created in in-process stores, IDs of objects from remote calls (when remote calls are still being executed).

Thanks in advance!

[YarShev]

https://discuss.ray.io/t/more-programmable-api-that-has-same-output-as-ray-memory-command/634

[rkooo567]

ray.objects() API is not really recommended to use (and it will be removed after we finish one of our new projects which move the object table to workers, not GCS). But I think having programmable ray memory API should be pretty easy to implement. (for example, look at this PR #13444).

Can you also specify your use case?

[YarShev]

Hi @rkooo567 , it sounds good that is easy to implement :) We want to use all available info of ObjectRef references in order to handle flexibly data movement, for example.

[rkooo567]

This will partially achieve this; #13444

But we need some refinement to make programmable APIs.

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