From 17c8ec6486e5ad976f8bf6ddb541a8e1260f3fd5 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Wed, 22 May 2013 10:48:17 +0200
Subject: [PATCH] try to add resonable warning if client connections vanished

The proxy call is done async, so the original connection can be
closed already. This just adds a reasonable warning message. We
can remove the message later if that turns out to work as expected.
---
 PVE/HTTPServer.pm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/PVE/HTTPServer.pm b/PVE/HTTPServer.pm
index 1f0ed5c9..545d64b6 100755
--- a/PVE/HTTPServer.pm
+++ b/PVE/HTTPServer.pm
@@ -334,6 +334,11 @@ sub proxy_request {
 
 		undef $w;
 
+		if (!$reqstate->{hdl}) {
+		    warn "proxy detected vanished client connection\n";
+		    return;
+		}
+
 		eval {
 		    my $code = delete $hdr->{Status};
 		    my $msg = delete $hdr->{Reason};