From df065f5bb15b26d177dfdaa43710c42db11aea9f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jason=20K=C3=B6lker?= <jason@koelker.net>
Date: Wed, 27 Jan 2016 04:20:54 +0000
Subject: [PATCH] protocols/ovsdb: Handle disconnects gracefully
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If the client closes the connection during setup, the socket's FD is
closed out automatically, ignore the errors while forcably shuting down
the socket.

Signed-off-by: Jason Kölker <jason@koelker.net>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
 ryu/services/protocols/ovsdb/manager.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ryu/services/protocols/ovsdb/manager.py b/ryu/services/protocols/ovsdb/manager.py
index e12935bb..e406c44c 100644
--- a/ryu/services/protocols/ovsdb/manager.py
+++ b/ryu/services/protocols/ovsdb/manager.py
@@ -92,7 +92,11 @@ class OVSDB(app_manager.RyuApp):
             self.send_event_to_observers(ev)
 
         else:
-            sock.shutdown(socket.SHUT_RDWR)
+            try:
+                sock.shutdown(socket.SHUT_RDWR)
+            except:
+                pass
+
             sock.close()
 
     def start(self):