Change os.uname()[1] and socket.gethostname() to the portable and faster platform.node_ip() (#8839)

Co-authored-by: Mehrdad <noreply@github.com>

python/ray/log_monitor.py

@@ -4,8 +4,8 @@ import glob
 import json
 import logging
 import os
+import platform
 import shutil
-import socket
 import time
 import traceback
 
@@ -302,7 +302,7 @@ if __name__ == "__main__":
             args.redis_address, password=args.redis_password)
         traceback_str = ray.utils.format_error_message(traceback.format_exc())
         message = ("The log monitor on node {} failed with the following "
-                   "error:\n{}".format(socket.gethostname(), traceback_str))
+                   "error:\n{}".format(platform.node(), traceback_str))
         ray.utils.push_error_to_driver_through_redis(
             redis_client, ray_constants.LOG_MONITOR_DIED_ERROR, message)
         raise e