Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/6338#discussion_r33014586
--- Diff: python/pyspark/rdd.py ---
@@ -121,14 +121,21 @@ def _parse_memory(s):
def _load_from_socket(port, serializer):
- sock = socket.socket()
- sock.settimeout(3)
- try:
- sock.connect(("localhost", port))
+ sock = None
+ for res in socket.getaddrinfo("localhost", port, socket.AF_UNSPEC,
socket.SOCK_STREAM):
+ af, socktype, proto, canonname, sa = res
+ try:
+ sock = socket.socket(af, socktype, proto)
+ sock.settimeout(3)
+ sock.connect(sa)
+ except socket.error:
+ sock = None
+ continue
+ break
+ if sock:
--- End diff --
If `sock is None` (the logical `else` branch), should we log an error or
throw an exception?
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