issue when trying to add/remove a new server from a cluster

Issue

[2017-05-29 19:50:42.353090] I [MSGID: 106490] [glusterd-handler.c:2945:__glusterd_handle_probe_query] 0-glusterd: Received probe from uuid: UUID
[2017-05-29 19:50:42.362300] I [MSGID: 106129] [glusterd-handler.c:2980:__glusterd_handle_probe_query] 0-glusterd: Unable to find peerinfo for host: Host1 (24007)
[2017-05-29 19:50:42.363798] I [rpc-clnt.c:984:rpc_clnt_connection_init] 0-management: setting frame-timeout to 600
[2017-05-29 19:50:42.367256] I [MSGID: 106498] [glusterd-handler.c:3589:glusterd_friend_add] 0-management: connect returned 0
[2017-05-29 19:50:42.367306] I [MSGID: 106493] [glusterd-handler.c:3008:__glusterd_handle_probe_query] 0-glusterd: Responded to Host1, op_ret: 0, op_errno: 0, ret: 0
[2017-05-29 19:50:42.385930] I [MSGID: 106490] [glusterd-handler.c:2600:__glusterd_handle_incoming_friend_req] 0-glusterd: Received probe from uuid: UUID
[2017-05-29 19:50:42.387360] I [MSGID: 106062] [glusterd-utils.c:3473:glusterd_import_volinfo] 0-management: peer is possibly old version
[2017-05-29 19:50:42.387472] E [MSGID: 106376] [glusterd-sm.c:1401:glusterd_friend_sm] 0-glusterd: handler returned: -2
[2017-05-29 19:56:10.385581] I [MSGID: 106487] [glusterd-handler.c:1472:__glusterd_handle_cli_list_friends] 0-glusterd: Received cli list req
[2017-05-29 19:56:40.691576] I [MSGID: 106491] [glusterd-handler.c:2650:__glusterd_handle_incoming_unfriend_req] 0-glusterd: Received unfriend from uuid: UUID
[2017-05-29 20:06:42.860820] I [MSGID: 106492] [glusterd-handler.c:2776:__glusterd_handle_friend_update] 0-glusterd: Received friend update from uuid: UUID