remove setReuseAddress

Author: Davies Liu

core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala

@@ -605,7 +605,6 @@ private[spark] object PythonRDD extends Logging {
    */
   private def serveIterator[T](items: Iterator[T], threadName: String): Int = {
     val serverSocket = new ServerSocket(0, 1)
-    serverSocket.setReuseAddress(true)
     // Close the socket if no connection in 3 seconds
     serverSocket.setSoTimeout(3000)
 

python/pyspark/rdd.py

@@ -113,23 +113,11 @@ def _parse_memory(s):
 
 def _load_from_socket(port, serializer):
     sock = socket.socket()
-    sock.settimeout(1)
+    sock.settimeout(3)
     try:
         sock.connect(("localhost", port))
         rf = sock.makefile("rb", 65536)
-        iter = serializer.load_stream(rf)
-        try:
-            yield next(iter)
-        except socket.timeout as e:
-            # the connection is not acknowledged by JVM, retry
-            # server will be closed after 3 seconds, then it will be refused
-            for v in _load_from_socket(port, serializer):
-                yield v
-            return
-
-        # increase the timeout, because the server side may be slowed down by GC
-        sock.settimeout(10)
-        for item in iter:
+        for item in serializer.load_stream(rf):
             yield item
     finally:
         sock.close()