Check if processes are alive in test. (#261)
Check if processes are alive in test. (#261)


stephanie-wang/ray,ujvl/ray-ng,Wapaul1/ray,ujvl/ray-ng,stephanie-wang/ray,pcmoritz/ray-1,richardliaw/ray,atumanov/ray,richardliaw/ray,ray-project/ray,robertnishihara/ray,pcmoritz/ray-1,ray-project/ray,atumanov/ray,Wapaul1/ray,alanamarzoev/ray,robertnishihara/ray,alanamarzoev/ray,alanamarzoev/ray,richardliaw/ray,robertnishihara/ray,ray-project/ray,stephanie-wang/ray,stephanie-wang/ray,robertnishihara/ray,atumanov/ray,ujvl/ray-ng,ray-project/ray,pcmoritz/ray-1,stephanie-wang/ray,stephanie-wang/ray,robertnishihara/ray,stephanie-wang/ray,richardliaw/ray,pcmoritz/ray-1,atumanov/ray,robertnishihara/ray,pcmoritz/ray-1,alanamarzoev/ray,pcmoritz/ray-1,robertnishihara/ray,richardliaw/ray,richardliaw/ray,alanamarzoev/ray,robertnishihara/ray,stephanie-wang/ray,alanamarzoev/ray,ray-project/ray,robertnishihara/ray,Wapaul1/ray,ujvl/ray-ng,Wapaul1/ray,ray-project/ray,richardliaw/ray,ray-project/ray,atumanov/ray,Wapaul1/ray,pcmoritz/ray-1,atumanov/ray,atumanov/ray,ray-project/ray,atumanov/ray,Wapaul1/ray,pcmoritz/ray-1,stephanie-wang/ray,richardliaw/ray