doc: explain rgw_fcgi_socket_backlog in rgw/config-ref.rst

Signed-off-by: liuchang0812 <liuchang0812@gmail.com>

diff --git a/doc/radosgw/config-ref.rst b/doc/radosgw/config-ref.rst
index 390151b87e92db0c235210dcc4471f49096281fd..500dd12bcab79c38fff5bb8753f7e0287a72919f 100644 (file)
--- a/doc/radosgw/config-ref.rst
+++ b/doc/radosgw/config-ref.rst
@@ -47,6 +47,11 @@ Ceph configuration file, the default value will be set automatically.
 :Type: String
 :Default: N/A
 
+``rgw fcgi socket backlog``
+
+:Description: The socket backlog for fcgi.
+:Type: Integer
+:Default: ``1024``
 
 ``rgw host``