From f8fbcef83cf9c0bc237f2aaf2345fbd6ba7d0ff9 Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Fri, 10 Oct 2008 17:51:34 +0200
Subject: [PATCH] [BUG] do not try to pause backends during reload

During a configuration reload, haproxy tried to pause all proxies.
Unfortunately, it also tried to pause backends, which would fail
and cause trouble to the new process since the port was still bound.

(backported from commit eab5c70f93c0a44223f706f6c120ad8d59f28796)
(cherry picked from commit ac1ca38e9b07422e21b5b4778918d243768e5498)
---
 src/proxy.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/src/proxy.c b/src/proxy.c
index 055403357..1db7839a7 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -388,8 +388,8 @@ void soft_stop(void)
 	tv_update_date(0,1); /* else, the old time before select will be used */
 	while (p) {
 		if (p->state != PR_STSTOPPED) {
-			Warning("Stopping proxy %s in %d ms.\n", p->id, p->grace);
-			send_log(p, LOG_WARNING, "Stopping proxy %s in %d ms.\n", p->id, p->grace);
+			Warning("Stopping %s %s in %d ms.\n", proxy_cap_str(p->cap), p->id, p->grace);
+			send_log(p, LOG_WARNING, "Stopping %s %s in %d ms.\n", proxy_cap_str(p->cap), p->id, p->grace);
 			p->stop_time = tick_add(now_ms, p->grace);
 		}
 		p = p->next;
@@ -436,16 +436,17 @@ void pause_proxies(void)
 	p = proxy;
 	tv_update_date(0,1); /* else, the old time before select will be used */
 	while (p) {
-		if (p->state != PR_STERROR &&
+		if (p->cap & PR_CAP_FE &&
+		    p->state != PR_STERROR &&
 		    p->state != PR_STSTOPPED &&
 		    p->state != PR_STPAUSED) {
-			Warning("Pausing proxy %s.\n", p->id);
-			send_log(p, LOG_WARNING, "Pausing proxy %s.\n", p->id);
+			Warning("Pausing %s %s.\n", proxy_cap_str(p->cap), p->id);
+			send_log(p, LOG_WARNING, "Pausing %s %s.\n", proxy_cap_str(p->cap), p->id);
 			pause_proxy(p);
 			if (p->state != PR_STPAUSED) {
 				err |= 1;
-				Warning("Proxy %s failed to enter pause mode.\n", p->id);
-				send_log(p, LOG_WARNING, "Proxy %s failed to enter pause mode.\n", p->id);
+				Warning("%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
+				send_log(p, LOG_WARNING, "%s %s failed to enter pause mode.\n", proxy_cap_str(p->cap), p->id);
 			}
 		}
 		p = p->next;
@@ -472,8 +473,8 @@ void listen_proxies(void)
 	tv_update_date(0,1); /* else, the old time before select will be used */
 	while (p) {
 		if (p->state == PR_STPAUSED) {
-			Warning("Enabling proxy %s.\n", p->id);
-			send_log(p, LOG_WARNING, "Enabling proxy %s.\n", p->id);
+			Warning("Enabling %s %s.\n", proxy_cap_str(p->cap), p->id);
+			send_log(p, LOG_WARNING, "Enabling %s %s.\n", proxy_cap_str(p->cap), p->id);
 
 			for (l = p->listen; l != NULL; l = l->next) {
 				if (listen(l->fd, p->backlog ? p->backlog : p->maxconn) == 0) {
@@ -491,10 +492,10 @@ void listen_proxies(void)
 					else
 						port = ntohs(((struct sockaddr_in *)(&l->addr))->sin_port);
 
-					Warning("Port %d busy while trying to enable proxy %s.\n",
-						port, p->id);
-					send_log(p, LOG_WARNING, "Port %d busy while trying to enable proxy %s.\n",
-						 port, p->id);
+					Warning("Port %d busy while trying to enable %s %s.\n",
+						port, proxy_cap_str(p->cap), p->id);
+					send_log(p, LOG_WARNING, "Port %d busy while trying to enable %s %s.\n",
+						 port, proxy_cap_str(p->cap), p->id);
 					/* Another port might have been enabled. Let's stop everything. */
 					pause_proxy(p);
 					break;