[Core] ray start cli exit code 1 not 0

[MissiontoMars]

What happened + What you expected to happen

When starting Ray with the command "ray start --head --block,", it will not exit if you attempt to terminate it using the "ray stop" command. However, if using the "ray stop -f" command to terminate it, the start command will return an exit code of 1.

In our environment, we would like the start command line to exit with an exit code of 0 when terminated with the "ray stop" command because this is not considered an exceptional situation.

Why does "ray start" always exit with an exit code of 1? Is it possible to exit with a code of 0 when receiving the expected return code?

Versions / Dependencies

ray 2.8.1

Reproduction script

ray start --head --block

ray stop/ray stop -f

Issue Severity

High: It blocks me from completing my task.

[jjyao]

We confirmed the behavior and we think it's a bug.

The right behavior should be that if ray stop gracefully shutdown every Ray process, the exit code of ray start --head --block should be 0 and if ray stop --force, the exit code should be non-zero. @MissiontoMars do you think this is the reasonable behavior.

[MissiontoMars]

We confirmed the behavior and we think it's a bug.

The right behavior should be that if ray stop gracefully shutdown every Ray process, the exit code of ray start --head --block should be 0 and if ray stop --force, the exit code should be non-zero. @MissiontoMars do you think this is the reasonable behavior.

That make sence, thanks. Which version is expected to fix this?

[qidi1]

Hello, I would like to confirm that when using ray stop to stop a cluster started with ray start --head --block, is the expected behavior for ray start --head --block to exit?
In the comments, I see this sentence:

# Processes using "--block" should be blocked forever without being terminated by signals

The current behavior seems to meet expectations.

[qidi1]

Hello, I would like to confirm that when using ray stop to stop a cluster started with ray start --head --block, is the expected behavior for ray start --head --block to exit? In the comments, I see this sentence:

# Processes using "--block" should be blocked forever without being terminated by signals

The current behavior seems to meet expectations.

@jjyao Please have a look