t_input1 = "[\"done\",[[0,\"ok\",0,[[0,\"disco://localhost/ddfs/vol0/blob/b\"]]]]]"
t_input1 = "[\"done\",[[0,\"ok\",0,[[0,\"disco://localhost/ddfs/vol0/blob/b\"]]]]]"
t_input1 = "[\"done\",[[0,\"ok\",0,[[0,\"disco://localhost/ddfs/vol0/blob/b\"]]]]]"