### 0
pkill -9 sglang; sleep 3; ray stop
  --force; pkill -9 ray; pkill -9 miles; sleep 3; true; 

### 1
nc -z 127.0.0.1 6379 2>/dev/null; echo $?

### 2
ray start
  --address=127.0.0.1:6379
  --num-gpus=8
  --disable-usage-stats
  --block
