diff --git a/deploy/apisix/lua/auth.lua b/deploy/apisix/lua/auth.lua
index 3b4865b..bea8aa3 100644
--- a/deploy/apisix/lua/auth.lua
+++ b/deploy/apisix/lua/auth.lua
@@ -60,6 +60,11 @@ function _M.access(conf, ctx)
         end
 
         local res, err = red:get(redis_key)
+        core.log.error("AUTH_DEBUG host=", redis_host,
+            " port=", redis_port,
+            " password=", redis_password,
+            " db=", redis_db,
+            " key=[", redis_key, "] err=[", tostring(err), "] res=[", tostring(res), "]")
         red:set_keepalive(10000, 100)
         if err or res == ngx.null then
             return core.response.exit(200, {code = 10003, message = "未登录或登录已过期"})