# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1365793933 0
# Node ID 5373be93c0be7f9c6893e1aba29e682620676992
# Parent  a4d21534cbf4601672fbbe7b1ce685b7c460db52
Upstream: warn if multiple non-stackable balancers are installed.

diff --git a/src/http/modules/ngx_http_upstream_ip_hash_module.c b/src/http/modules/ngx_http_upstream_ip_hash_module.c
--- a/src/http/modules/ngx_http_upstream_ip_hash_module.c
+++ b/src/http/modules/ngx_http_upstream_ip_hash_module.c
@@ -252,6 +252,11 @@ ngx_http_upstream_ip_hash(ngx_conf_t *cf
 
     uscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_upstream_module);
 
+    if (uscf->peer.init_upstream) {
+        ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
+                           "load balancing method redefined");
+    }
+
     uscf->peer.init_upstream = ngx_http_upstream_init_ip_hash;
 
     uscf->flags = NGX_HTTP_UPSTREAM_CREATE
diff --git a/src/http/modules/ngx_http_upstream_least_conn_module.c b/src/http/modules/ngx_http_upstream_least_conn_module.c
--- a/src/http/modules/ngx_http_upstream_least_conn_module.c
+++ b/src/http/modules/ngx_http_upstream_least_conn_module.c
@@ -387,6 +387,11 @@ ngx_http_upstream_least_conn(ngx_conf_t 
 
     uscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_upstream_module);
 
+    if (uscf->peer.init_upstream) {
+        ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
+                           "load balancing method redefined");
+    }
+
     uscf->peer.init_upstream = ngx_http_upstream_init_least_conn;
 
     uscf->flags = NGX_HTTP_UPSTREAM_CREATE