### What this PR does / why we need it? 1. Optimize multi-node waiting logic 2. Remove the `tee` pipeline for logs, which will lead to hang issue ### How was this patch tested? - vLLM version: v0.12.0 - vLLM main: https://github.com/vllm-project/vllm/commit/v0.12.0 Signed-off-by: wangli <wangli858794774@gmail.com>