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Diffstat (limited to 'src/http/modules/ngx_http_limit_zone_module.c')
-rw-r--r--src/http/modules/ngx_http_limit_zone_module.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/http/modules/ngx_http_limit_zone_module.c b/src/http/modules/ngx_http_limit_zone_module.c
index c7a3753d9..824803d34 100644
--- a/src/http/modules/ngx_http_limit_zone_module.c
+++ b/src/http/modules/ngx_http_limit_zone_module.c
@@ -462,6 +462,10 @@ ngx_http_limit_conn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
ngx_int_t n;
ngx_str_t *value;
+ if (lzcf->shm_zone) {
+ return "is duplicate";
+ }
+
value = cf->args->elts;
lzcf->shm_zone = ngx_shared_memory_add(cf, &value[1], 0,