From owner-freebsd-stable@FreeBSD.ORG Fri Nov 7 16:30:19 2014 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id BBE7494D for ; Fri, 7 Nov 2014 16:30:19 +0000 (UTC) Received: from constantine.ingresso.co.uk (constantine.ingresso.co.uk [IPv6:2a02:b90:3002:e550::3]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 85308C13 for ; Fri, 7 Nov 2014 16:30:19 +0000 (UTC) Received: from dilbert.london-internal.ingresso.co.uk ([10.64.50.6] helo=dilbert.ingresso.co.uk) by constantine.ingresso.co.uk with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.82 (FreeBSD)) (envelope-from ) id 1XmmQR-000ONQ-8x; Fri, 07 Nov 2014 16:30:15 +0000 Received: from petefrench by dilbert.ingresso.co.uk with local (Exim 4.84 (FreeBSD)) (envelope-from ) id 1XmmQR-000ARo-6g; Fri, 07 Nov 2014 16:30:15 +0000 To: petefrench@ingresso.co.uk, petefrench@ingresso.co.uk, ronald-lists@klop.ws, stable@freebsd.org Subject: Re: Advice on an odd networking problem Message-Id: From: Pete French Date: Fri, 07 Nov 2014 16:30:15 +0000 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Nov 2014 16:30:19 -0000 Just to finish this thread for anyone googling - we found the cause of this, which was running out of states in pf on the firewalls. The extra call on the local webserve was generating an extra call for memcached, whcih was being load balanced back through the same set of firewalls. thanks for the advice, and appologies for the http/https typo ;) -pete.