Disable Ray usage stats collection

[WoosukKwon]

I just got to know that Ray collects usage data by default. Let's disable it.

[Lvjinhong]

I just got to know that Ray collects usage data by default. Let's disable it.

So, will this have any impact on performance, or is it just a personal preference? I am passionate about high-performance inference, so I'm considering replacing Ray with TorchRun to potentially boost the performance of vLLM.

[zhuohan123]

I just got to know that Ray collects usage data by default. Let's disable it.

So, will this have any impact on performance, or is it just a personal preference? I am passionate about high-performance inference, so I'm considering replacing Ray with TorchRun to potentially boost the performance of vLLM.

This is not related to performance. The changes in #2221 are more related to performance. Will include more details there.

[zhuohan123]

LGTM!

[richardliaw]

No action needed, but just adding a bit of clarification -- this PR will not do anything because the usage stats collection was already disabled before this PR.

I believe vLLM does not force the user to run ray start or ray up in the CLI, which is the only way where usage stats collection is enabled (documentation here).

Let me know if I missed anything!

usage stats collection is not enabled when using local dev clusters started via ray.init() unless it’s a nightly wheel. This means that Ray will never collect data from third-party library users not using Ray directly.

[WoosukKwon]

@richardliaw Thanks for the clarification! I recently used Ray nightly for the first time and misunderstood that this was enabled by default.