How to change default address for ray.init()

Ray Core
1

How severe does this issue affect your experience of using Ray?

  • High: It blocks me to complete my task.

Need to change the default address. Integrating with another application as a plugin has its own scheduler using rays default address. This causes ray workers/actors to be canceled/killed before processing is complete.

2

You can set the OS environment variable RAY_ADDRESS to override the ray.init() address.

3

Thanks I will give that a try.

4

Alas it does not seem to work.

Is it just the IP address or is IP Address:PORT that should be expressed. If port should be added what is the default?

  File "D:\apps\vec\formatters\ATAKRadar.py", line 20, os.environ["RAY_ADDRESS"] = "127.0.1.1"
  File "D:\apps\vec\ingestors\converter_ATAKRadar.py", line 33, in __init__
    ray.init(local_mode=False, ignore_reinit_error=True, _temp_dir=ray_session_path)
  File "d:\venv\lib\site-packages\ray\_private\client_mode_hook.py", line 105, in wrapper
    return func(*args, **kwargs)
  File "d:\venv\lib\site-packages\ray\worker.py", line 975, in init
    connect_only=True)
  File "d:\venv\lib\site-packages\ray\node.py", line 166, in __init__
    self.validate_ip_port(self.address)
  File "d:\venv\lib\site-packages\ray\node.py", line 302, in validate_ip_port
    _ = int(port)
ValueError: invalid literal for int() with base 10: '127.0.1.1'

Thanks

5

I added a port number, so that exception above goes away. Now I get warning and the code will not function.

2022-03-21 12:18:51,604 WARNING node.py:1466 -- Unable to connect to GCS at 127.0.1.1:14000. Check that (1) Ray GCS with matching version started successfully at the specified address, and (2) there is no firewall setting preventing access.

At this point I do not see a way to use just RAY_ADDRESS to change the default address it is using. When I allow both the DASK scheduler to use the same address my code does work however there is a performance penalty.

6

Hmm I think I misunderstood your original question. RAY_ADDRESS is used to specify the address that the Ray driver/client should connect to, but it assumes that there is already a Ray instance running there.

Try using ray start --head --port <custom port or 0 to choose a random one> to start a Ray instance, then you can connect to it with ray.init(address="auto").

7

Currently the ray app is embedded as a package and not separate instance that is running.

8

Hmm not sure I understand the issue you’re running into. Are you just using ray.init() to start Ray? This should choose a random port, so I’m not sure how you’re getting a port conflict. What version of Ray are you using?

9

Running version 1.11.0 and yes running ray.init() on initialization of the Class instance that other app invokes.

10

Just need ability to have it use a different IP address than 127.0.0.1 when you run with ray.init().