center restart with new shm; set center node ssn.

lichao

2021-06-02 993c556000a414011626770540678948f16eaa9e

 utest/tcp_test.cpp

@@ -52,8 +52,8 @@

      head.mutable_dest()->set_ip(connect_addr);
      head.mutable_dest()->set_port(port);
      head.mutable_dest()->set_mq_id(1000011);
      head.mutable_dest()->set_abs_addr(10296);
      head.mutable_dest()->set_mq_id(201);
      head.mutable_dest()->set_abs_addr(10072);

      return (MsgI::Serialize(head, req));
   };