Update EPIPE handling.

Now ignore EPIPE tracebacks as they're most likely just notifications
that a client disconnected before reading the entire response.

gunicorn/util.py

@@ -106,7 +106,6 @@ def read_partial(sock, length):
 def write(sock, data):
     buf = ""
     buf += data
-    i = 0
     while buf:
         try:
             bytes = sock.send(buf)
@@ -117,10 +116,7 @@ def write(sock, data):
         except socket.error, e:
             if e[0] in (errno.EWOULDBLOCK, errno.EAGAIN):
                 break
-            if e[0] == errno.EPIPE and i == 0:
-                continue
             raise
-        i += 1
         
 def write_nonblock(sock, data):
     timeout = sock.gettimeout()

gunicorn/worker.py

@@ -112,7 +112,7 @@ class Worker(object):
                 self.handle(client, addr)
                 self.nr += 1
             except socket.error, e:
-                if e[0] not in (errno.EAGAIN, errno.ECONNABORTED):
+                if e[0] not in (errno.EAGAIN, errno.ECONNABORTED, errno.EPIPE):
                     raise
 
             # Keep processing clients until no one is waiting.