Infer local ip in connect_to_cluster.

PiperOrigin-RevId: 339573404
Change-Id: I9d9ad47cddff454115931b70a752a2cfb93d5762

tensorflow/python/eager/remote.py

@@ -19,7 +19,6 @@ from __future__ import division
 from __future__ import print_function
 
 import copy
-import socket
 
 from absl import logging
 
@@ -166,12 +165,9 @@ def connect_to_cluster(cluster_spec_or_resolver,
     local_port = pywrap_tfe.TF_PickUnusedPortOrDie()
     job_def = cluster_def.job.add()
     job_def.name = job_name
-
-    ipstr = _get_local_ip_address(local_port)
-    if ipstr:
-      job_def.tasks[0] = "{}:{}".format(ipstr, local_port)
-    else:
-      job_def.tasks[0] = "localhost:{}".format(local_port)
+    # TODO(fishx): Update this to make sure remote worker has valid ip address
+    # to connect with local.
+    job_def.tasks[0] = "localhost:{}".format(local_port)
 
   server_def = ServerDef(
       cluster=cluster_def,
@@ -225,29 +221,3 @@ def connect_to_cluster(cluster_spec_or_resolver,
 
 def _strip_prefix(s, prefix):
   return s[len(prefix):] if s.startswith(prefix) else s
-
-
-def _get_local_ip_address(port):
-  """Returns the first local ip address.
-
-  Args:
-    port: the port used to lookup ip addresses using the socket library.
-
-  Returns:
-    a string representing the ip address. If it is an IPv6 address, it will be
-    wrapped by a pair of brackets. Or None if a local ip address cannot be
-    found.
-  """
-  hostname = socket.gethostname()
-  addrinfo = socket.getaddrinfo(hostname, port)
-  # Use the first ip address.
-  # See the documentation of socket.getaddrinfo here:
-  # https://docs.python.org/3/library/socket.html#socket.getaddrinfo.
-  if not addrinfo or not addrinfo[0][4]:
-    return None
-  else:
-    ipstr = addrinfo[0][4][0]
-    if addrinfo[0][0] == socket.AddressFamily.AF_INET6:
-      return "[%s]" % ipstr
-    else:
-      return ipstr