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Diffstat (limited to 'src/http/modules/ngx_http_upstream_keepalive_module.c')
-rw-r--r--src/http/modules/ngx_http_upstream_keepalive_module.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/http/modules/ngx_http_upstream_keepalive_module.c b/src/http/modules/ngx_http_upstream_keepalive_module.c
index d10e3d016..a2ad5aa8d 100644
--- a/src/http/modules/ngx_http_upstream_keepalive_module.c
+++ b/src/http/modules/ngx_http_upstream_keepalive_module.c
@@ -502,6 +502,10 @@ ngx_http_upstream_keepalive(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
kcf = ngx_http_conf_upstream_srv_conf(uscf,
ngx_http_upstream_keepalive_module);
+ if (kcf->original_init_upstream) {
+ return "is duplicate";
+ }
+
kcf->original_init_upstream = uscf->peer.init_upstream
? uscf->peer.init_upstream
: ngx_http_upstream_init_round_robin;