Erlang 모듈 mod_confirm_delivery가 Ejabberd와 작동하지 않습니다.

Question

Android Chat 앱을 개발 중이며 갑자기 인터넷 연결이 끊어 질 때 보낸 모든 메시지를 수신하기 위해 Erlang 모듈 mod_confirm_delivery 을 실행하려고합니다. 하지만 여전히 서버에 온라인으로 표시됨). 모듈은 올바르게 시작되지만 Ejabberd 16.03에서 작동하지 않습니다. 실제로 "오프라인"사용자에게 보낸 모든 메시지는 손실됩니다. 모듈이 Ejabberd의 이전 버전 용으로 작성 되었기 때문에 일부 수정했습니다. 작동시키기에 충분합니다. 나는 Erlang과 Mnesia db를 잘 모르기 때문에 문제를 해결하는 방법을 모른다.

다음은 모듈과 생성되는 로그가있을 때 메시지에 대한 사용자 1의 시도를 "오프라인"사용자 2.

%% name of module must match file name 
-module(mod_confirm_delivery). 

-author("Johan Vorster"). 

%% Every ejabberd module implements the gen_mod behavior 
%% The gen_mod behavior requires two functions: start/2 and stop/1 
-behaviour(gen_mod). 

%% public methods for this module 
-export([start/2, stop/1, send_packet/4, receive_packet/5, get_session/5, set_offline_message/5]). 

%% included for writing to ejabberd log file 
-include("ejabberd.hrl"). 
-include("logger.hrl"). 

-record(session, {sid, usr, us, priority, info}). 
-record(offline_msg, {us, timestamp, expire, from, to, packet}). 
-record(confirm_delivery, {messageid, timerref}). 

start(_Host, _Opt) -> 

    ?DEBUG("mod_confirm_delivery loading", []), 
    mnesia:create_table(confirm_delivery, 
     [{attributes, record_info(fields, confirm_delivery)}]), 
    mnesia:clear_table(confirm_delivery), 
    ?DEBUG("created timer ref table", []), 

    ?DEBUG("start user_send_packet hook", []), 
    ejabberd_hooks:add(user_send_packet, _Host, ?MODULE, send_packet, 50), 
    ?DEBUG("start user_receive_packet hook", []), 
    ejabberd_hooks:add(user_receive_packet, _Host, ?MODULE, receive_packet, 50). 

stop(_Host) -> 
    ?DEBUG("stopping mod_confirm_delivery", []), 
    ejabberd_hooks:delete(user_send_packet, _Host, ?MODULE, send_packet, 50), 
    ejabberd_hooks:delete(user_receive_packet, _Host, ?MODULE, receive_packet, 50). 

%%send_packet(From, To, Packet) -> 
send_packet(Packet, C2SState, From, To) -> 
%% ?INFO_MSG("send_packet FromJID ~p ToJID ~p Packet ~p~n",[From, To, Packet]), 
?DEBUG("send_packet Packet ~p C2SState ~p FromJID ~p ToJID ~p~n",[Packet, C2SState, From, To]), 

Type = fxml:get_tag_attr_s(<<"type">>, Packet), 
?DEBUG("Message Type ~p~n",[Type]), 

Body = fxml:get_path_s(Packet, [{elem, <<"body">>}, cdata]), 
?DEBUG("Message Body ~p~n",[Body]), 

MessageId = fxml:get_tag_attr_s(<<"id">>, Packet), 
?DEBUG("send_packet MessageId ~p~n",[MessageId]), 

LUser = element(2, To), 
?DEBUG("send_packet LUser ~p~n",[LUser]), 

LServer = element(3, To), 
?DEBUG("send_packet LServer ~p~n",[LServer]), 

Sessions = mnesia:dirty_index_read(session, {LUser, LServer}, #session.us), 
?DEBUG("Session: ~p~n",[Sessions]), 

case Type =:= "chat" andalso Body =/= [] andalso Sessions =/= [] of 
    true ->     

    {ok, Ref} = timer:apply_after(10000, mod_confirm_delivery, get_session, [LUser, LServer, From, To, Packet]), 

    ?DEBUG("Saving To ~p Ref ~p~n",[MessageId, Ref]), 

    F = fun() -> 
     mnesia:write(#confirm_delivery{messageid=MessageId, timerref=Ref}) 
    end, 

    mnesia:transaction(F); 

_ -> 
    Packet 
end. 

receive_packet(Packet, C2SState, _JID, From, To) -> 
?DEBUG("receive_packet JID: ~p From: ~p To: ~p Packet: ~p~n",[_JID, From, To, Packet]), 

Received = fxml:get_subtag(Packet, <<"received">>), 
?DEBUG("receive_packet Received Tag ~p~n",[Received]),  

if Received =/= false andalso Received =/= [] -> 
    MessageId = fxml:get_tag_attr_s(<<"id">>, Received), 
    ?DEBUG("receive_packet MessageId ~p~n",[MessageId]);  
true -> 
    MessageId = [] 
end, 

if MessageId =/= [] -> 
    Record = mnesia:dirty_read(confirm_delivery, MessageId), 
    ?DEBUG("receive_packet Record: ~p~n",[Record]);  
true -> 
    Record = [] 
end, 

if Record =/= [] -> 
    [R] = Record, 
    ?DEBUG("receive_packet Record Elements ~p~n",[R]), 

    Ref = element(3, R), 

    ?DEBUG("receive_packet Cancel Timer ~p~n",[Ref]), 
    timer:cancel(Ref), 

    mnesia:dirty_delete(confirm_delivery, MessageId), 
    ?DEBUG("confirm_delivery clean up",[]);  
true -> 
    Packet 
end. 


get_session(User, Server, From, To, Packet) -> 
?DEBUG("get_session User: ~p Server: ~p From: ~p To ~p Packet ~p~n",[User, Server, From, To, Packet]), 

ejabberd_router:route(From, To, Packet), 
?DEBUG("Resend message",[]), 

set_offline_message(User, Server, From, To, Packet), 
?DEBUG("Set offline message",[]), 

MessageId = fxml:get_tag_attr_s(<<"id">>, Packet), 
?DEBUG("get_session MessageId ~p~n",[MessageId]),  

case MessageId =/= [] of 
    true ->   

    mnesia:dirty_delete(confirm_delivery, MessageId), 
    ?DEBUG("confirm_delivery clean up",[]); 

_ -> 
    ok 
end. 

set_offline_message(User, Server, From, To, Packet) -> 
?DEBUG("set_offline_message User: ~p Server: ~p From: ~p To ~p Packet ~p~n",[User, Server, From, To, Packet]),  

F = fun() -> 
    mnesia:write(#offline_msg{us = {User, Server}, timestamp = now(), expire = "never", from = From, to = To, packet = Packet}) 
end, 

mnesia:transaction(F). 

로그

2016-10-26 16:24:26.320 [debug] <0.6745.7>@ejabberd_sm:do_route:420 session manager 
     from {jid,<<"2">>,<<"mydomain.com">>,<<>>,<<"2">>,<<"mydomain.com">>,<<>>} 
     to {jid,<<"1">>,<<"mydomain.com">>,<<>>,<<"1">>,<<"mydomain.com">>,<<>>} 
     packet {xmlel,<<"presence">>,[{<<"type">>,<<"subs"...>>}],[]} 
2016-10-26 16:24:26.345 [debug] <0.6744.7>@ejabberd_receiver:process_data:284 Received XML on stream = <<"<iq to='mydomain.com' id='POJeY-45' type='set'><register xmlns='https://android.googleapis.com/gcm'><key>doyCwvN_NNk:APA91bEx80MxaQ0Nj7wXhlvEUpJgG6bBLqmuyR3XiQaK-pCO7ftVtD1DsYB8RErepCKsutDSjMZP6g9hCvaQGshG9GUY7E8kKSxYy21MI_Agf_WC2WdcNSHwmNoO53AX4Rkqvhrfzfu0</key></register></iq><message to='2@mydomain.com' id='2831541994867' type='chat'><body>{&quot;Date&quot;:&quot;26 ott 2016&quot;,&quot;Time&quot;:&quot;1477491866&quot;,&quot;body&quot;:&quot;hello2&quot;,&quot;isMine&quot;:true,&quot;msgid&quot;:&quot;2831541994867&quot;,&quot;random_id&quot;:&quot;802726696&quot;,&quot;reason&quot;:&quot;chat&quot;,&quot;receiver&quot;:&quot;2&quot;,&quot;sender&quot;:&quot;1&quot;,&quot;senderName&quot;:&quot;1&quot;}</body><thread>4d8f64fb-7012-4649-a123-9dd7873132dd</thread></message><r xmlns='urn:xmpp:sm:3'/>">> 
2016-10-26 16:24:26.345 [debug] <0.6744.7>@shaper:update:120 State: {maxrate,1000,496.7201044401154,1477491866318200}, Size=824 
M=548.1347834383881, I=27.194 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:42 send_packet Packet {xmlel,<<"iq">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"mydomain.com">>},{<<"id">>,<<"POJeY-45">>},{<<"type">>,<<"set">>}],[{xmlel,<<"register">>,[{<<"xmlns">>,<<"https://android.googleapis.com/gcm">>}],[{xmlel,<<"key">>,[],[{xmlcdata,<<"doyCwvN_NNk:APA91bEx80MxaQ0Nj7wXhlvEUpJgG6bBLqmuyR3XiQaK-pCO7ftVtD1DsYB8RErepCKsutDSjMZP6g9hCvaQGshG9GUY7E8kKSxYy21MI_Agf_WC2WdcNSHwmNoO53AX4Rkqvhrfzfu0">>}]}]}]} C2SState {state,{socket_state,fast_tls,{tlssock,#Port<0.637892>,#Port<0.637893>},<0.6744.7>},ejabberd_socket,#Ref<0.0.1572865.84391>,false,<<"6182426231480078240">>,undefined,c2s,c2s_shaper,false,true,true,true,[verify_none,compression_none,{certfile,<<"/etc/ejabberd/ejabberd.pem">>}],true,{jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>},<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,{{1477,489252,221181},<0.6745.7>},{3,{{<<"2">>,<<"mydomain.com">>,<<>>},{{<<"1">>,<<"mydomain.com">>,<<>>},nil,nil},{{<<"3">>,<<"mydomain.com">>,<<>>},nil,nil}}},{3,{{<<"2">>,<<"mydomain.com">>,<<>>},{{<<"1">>,<<"mydomain.com">>,<<>>},nil,nil},{{<<"3">>,<<"mydomain.com">>,<<>>},nil,nil}}},{3,{{<<"1">>,<<"mydomain.com">>,<<>>},nil,{{<<"2">>,<<"mydomain.com">>,<<>>},nil,{{<<"3">>,<<"mydomain.com">>,<<>>},nil,nil}}}},{xmlel,<<"presence">>,[{<<"xml:lang">>,<<"en">>},{<<"id">>,<<"POJeY-6">>}],[{xmlel,<<"c">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/caps">>},{<<"hash">>,<<"sha-1">>},{<<"node">>,<<"http://www.igniterealtime.org/projects/smack">>},{<<"ver">>,<<"NfJ3flI83zSdUDzCEICtbypursw=">>}],[]}]},...} FromJID {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} ToJID {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:45 Message Type <<"set">> 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:48 Message Body <<>> 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:51 send_packet MessageId <<"POJeY-45">> 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:54 send_packet LUser <<>> 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:57 send_packet LServer <<"mydomain.com">> 
2016-10-26 16:24:26.346 [info] <0.6745.7>@mod_confirm_delivery:send_packet:60 Session: [] 
2016-10-26 16:24:26.346 [debug] <0.6745.7>@ejabberd_router:do_route:351 route 
     from {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     to {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} 
     packet {xmlel,<<"iq">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"mydomain.com">>},{<<"id">>,<<"POJeY-45">>},{<<"type">>,<<"set">>}],[{xmlel,<<"register">>,[{<<"xmlns">>,<<"https://android.googleapis.com/gcm">>}],[{xmlel,<<"key">>,[],[{xmlcdata,<<"doyCwvN_NNk:APA91bEx80MxaQ0Nj7wXhlvEUpJgG6bBLqmuyR3XiQaK-pCO7ftVtD1DsYB8RErepCKsutDSjMZP6g9hCvaQGshG9GUY7E8kKSxYy21MI_Agf_WC2WdcNSHwmNoO53AX4Rkqvhrfzfu0">>}]}]}]} 
2016-10-26 16:24:26.347 [debug] <0.6745.7>@ejabberd_local:do_route:261 local route 
     from {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     to {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} 
     packet {xmlel,<<"iq">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<...>>},{<<...>>,...},{...}],[{xmlel,<<...>>,...}]} 
2016-10-26 16:24:26.347 [debug] <0.6745.7>@mod_gcm:iq:156 mod_gcm: updating last_seen for user 1@mydomain.com 
2016-10-26 16:24:26.347 [debug] <0.6745.7>@ejabberd_router:do_route:351 route 
     from {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} 
     to {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     packet {xmlel,<<"iq">>,[{<<"id">>,<<"POJeY-45">>},{<<"type">>,<<"result">>}],[]} 
2016-10-26 16:24:26.347 [debug] <0.6745.7>@ejabberd_local:do_route:261 local route 
     from {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} 
     to {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     packet {xmlel,<<"iq">>,[{<<"id">>,<<"POJe"...>>},{<<"type">>,<<...>>}],[]} 
2016-10-26 16:24:26.347 [debug] <0.6745.7>@ejabberd_sm:do_route:420 session manager 
     from {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} 
     to {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     packet {xmlel,<<"iq">>,[{<<"id">>,<<"POJe"...>>},{<<"type">>,<<...>>}],[]} 
2016-10-26 16:24:26.348 [debug] <0.6745.7>@ejabberd_sm:do_route:538 sending to process <0.6745.7> 
2016-10-26 16:24:26.348 [info] <0.6745.7>@mod_confirm_delivery:send_packet:42 send_packet Packet {xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"2@mydomain.com">>},{<<"id">>,<<"2831541994867">>},{<<"type">>,<<"chat">>}],[{xmlel,<<"body">>,[],[{xmlcdata,<<"{\"Date\":\"26 ott 2016\",\"Time\":\"1477491866\",\"body\":\"hello2\",\"isMine\":true,\"msgid\":\"2831541994867\",\"random_id\":\"802726696\",\"reason\":\"chat\",\"receiver\":\"2\",\"sender\":\"1\",\"senderName\":\"1\"}">>}]},{xmlel,<<"thread">>,[],[{xmlcdata,<<"4d8f64fb-7012-4649-a123-9dd7873132dd">>}]}]} C2SState {state,{socket_state,fast_tls,{tlssock,#Port<0.637892>,#Port<0.637893>},<0.6744.7>},ejabberd_socket,#Ref<0.0.1572865.84391>,false,<<"6182426231480078240">>,undefined,c2s,c2s_shaper,false,true,true,true,[verify_none,compression_none,{certfile,<<"/etc/ejabberd/ejabberd.pem">>}],true,{jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>},<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,{{1477,489252,221181},<0.6745.7>},{3,{{<<"2">>,<<"mydomain.com">>,<<>>},{{<<"1">>,<<"mydomain.com">>,<<>>},nil,nil},{{<<"3">>,<<"mydomain.com">>,<<>>},nil,nil}}},{3,{{<<"2">>,<<"mydomain.com">>,<<>>},{{<<"1">>,<<"mydomain.com">>,<<>>},nil,nil},{{<<"3">>,<<"mydomain.com">>,<<>>},nil,nil}}},{3,{{<<"1">>,<<"mydomain.com">>,<<>>},nil,{{<<"2">>,<<"mydomain.com">>,<<>>},nil,{{<<"3">>,<<"mydomain.com">>,<<>>},nil,nil}}}},{xmlel,<<"presence">>,[{<<"xml:lang">>,<<"en">>},{<<"id">>,<<"POJeY-6">>}],[{xmlel,<<"c">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/caps">>},{<<"hash">>,<<"sha-1">>},{<<"node">>,<<"http://www.igniterealtime.org/projects/smack">>},{<<"ver">>,<<"NfJ3flI83z...">>}],...}]},...} FromJID {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} ToJID {jid,<<"2">>,<<"mydomain.com">>,<<>>,<<"2">>,<<"mydomain.com">>,<<>>} 
2016-10-26 16:24:26.348 [info] <0.6745.7>@mod_confirm_delivery:send_packet:45 Message Type <<"chat">> 
2016-10-26 16:24:26.348 [info] <0.6745.7>@mod_confirm_delivery:send_packet:48 Message Body <<"{\"Date\":\"26 ott 2016\",\"Time\":\"1477491866\",\"body\":\"hello2\",\"isMine\":true,\"msgid\":\"2831541994867\",\"random_id\":\"802726696\",\"reason\":\"chat\",\"receiver\":\"2\",\"sender\":\"1\",\"senderName\":\"1\"}">> 
2016-10-26 16:24:26.348 [info] <0.6745.7>@mod_confirm_delivery:send_packet:51 send_packet MessageId <<"2831541994867">> 
2016-10-26 16:24:26.348 [info] <0.6745.7>@mod_confirm_delivery:send_packet:54 send_packet LUser <<"2">> 
2016-10-26 16:24:26.348 [info] <0.6745.7>@mod_confirm_delivery:send_packet:57 send_packet LServer <<"mydomain.com">> 
2016-10-26 16:24:26.349 [info] <0.6745.7>@mod_confirm_delivery:send_packet:60 Session: [{session,{{1477,491691,357100},<0.6738.7>},{<<"2">>,<<"mydomain.com">>,<<"dMeXduJ49Zk">>},{<<"2">>,<<"mydomain.com">>},0,[{ip,{{5,90,200,27},26166}},{conn,c2s_tls},{auth_module,undefined}]}] 
2016-10-26 16:24:26.349 [debug] <0.6745.7>@ejabberd_local:do_route:261 local route 
     from {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     to {jid,<<"2">>,<<"mydomain.com">>,<<>>,<<"2">>,<<"mydomain.com">>,<<>>} 
     packet {xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<...>>},{<<...>>,...},{...}],[{xmlel,<<...>>,...},{xmlel,...}]} 
2016-10-26 16:24:26.349 [debug] <0.6745.7>@ejabberd_sm:do_route:420 session manager 
     from {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} 
     to {jid,<<"2">>,<<"mydomain.com">>,<<>>,<<"2">>,<<"mydomain.com">>,<<>>} 
     packet {xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<...>>},{<<...>>,...},{...}],[{xmlel,<<...>>,...},{xmlel,...}]} 
2016-10-26 16:24:26.349 [debug] <0.6745.7>@ejabberd_sm:route_message:584 sending to process <0.6738.7> 
2016-10-26 16:24:26.349 [debug] <0.6745.7>@ejabberd_c2s:send_text:1823 Send XML on stream = <<"<a xmlns='urn:xmpp:sm:3' h='20'/>">> 
2016-10-26 16:24:26.350 [info] <0.6745.7>@mod_confirm_delivery:receive_packet:80 receive_packet JID: {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} From: {jid,<<>>,<<"mydomain.com">>,<<>>,<<>>,<<"mydomain.com">>,<<>>} To: {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} Packet: {xmlel,<<"iq">>,[{<<"from">>,<<"mydomain.com">>},{<<"to">>,<<"1@mydomain.com/doyCwvN_NNk">>},{<<"id">>,<<"POJeY-45">>},{<<"type">>,<<"result">>}],[]} 
2016-10-26 16:24:26.350 [info] <0.6745.7>@mod_confirm_delivery:receive_packet:83 receive_packet Received Tag false 
2016-10-26 16:24:26.350 [info] <0.6738.7>@mod_confirm_delivery:receive_packet:80 receive_packet JID: {jid,<<"2">>,<<"mydomain.com">>,<<"dMeXduJ49Zk">>,<<"2">>,<<"mydomain.com">>,<<"dMeXduJ49Zk">>} From: {jid,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>,<<"1">>,<<"mydomain.com">>,<<"doyCwvN_NNk">>} To: {jid,<<"2">>,<<"mydomain.com">>,<<>>,<<"2">>,<<"mydomain.com">>,<<>>} Packet: {xmlel,<<"message">>,[{<<"from">>,<<"1@mydomain.com/doyCwvN_NNk">>},{<<"to">>,<<"2@mydomain.com">>},{<<"xml:lang">>,<<"en">>},{<<"id">>,<<"2831541994867">>},{<<"type">>,<<"chat">>}],[{xmlel,<<"body">>,[],[{xmlcdata,<<"{\"Date\":\"26 ott 2016\",\"Time\":\"1477491866\",\"body\":\"hello2\",\"isMine\":true,\"msgid\":\"2831541994867\",\"random_id\":\"802726696\",\"reason\":\"chat\",\"receiver\":\"2\",\"sender\":\"1\",\"senderName\":\"1\"}">>}]},{xmlel,<<"thread">>,[],[{xmlcdata,<<"4d8f64fb-7012-4649-a123-9dd7873132dd">>}]}]} 
2016-10-26 16:24:26.350 [debug] <0.6745.7>@ejabberd_c2s:send_text:1823 Send XML on stream = <<"<iq from='mydomain.com' to='1@mydomain.com/doyCwvN_NNk' id='POJeY-45' type='result'/>">> 
2016-10-26 16:24:26.350 [debug] <0.6745.7>@ejabberd_c2s:send_text:1823 Send XML on stream = <<"<r xmlns='urn:xmpp:sm:3'/>">> 
2016-10-26 16:24:26.350 [info] <0.6738.7>@mod_confirm_delivery:receive_packet:83 receive_packet Received Tag false 
2016-10-26 16:24:26.351 [debug] <0.6738.7>@ejabberd_c2s:send_text:1823 Send XML on stream = <<"<message from='1@mydomain.com/doyCwvN_NNk' to='2@mydomain.com' xml:lang='en' id='2831541994867' type='chat'><body>{&quot;Date&quot;:&quot;26 ott 2016&quot;,&quot;Time&quot;:&quot;1477491866&quot;,&quot;body&quot;:&quot;hello2&quot;,&quot;isMine&quot;:true,&quot;msgid&quot;:&quot;2831541994867&quot;,&quot;random_id&quot;:&quot;802726696&quot;,&quot;reason&quot;:&quot;chat&quot;,&quot;receiver&quot;:&quot;2&quot;,&quot;sender&quot;:&quot;1&quot;,&quot;senderName&quot;:&quot;1&quot;}</body><thread>4d8f64fb-7012-4649-a123-9dd7873132dd</thread></message>">> 
2016-10-26 16:24:26.351 [debug] <0.6738.7>@ejabberd_c2s:send_text:1823 Send XML on stream = <<"<r xmlns='urn:xmpp:sm:3'/>">> 
2016-10-26 16:24:26.867 [debug] <0.6744.7>@ejabberd_receiver:process_data:284 Received XML on stream = <<"<a xmlns='urn:xmpp:sm:3' h='18'/>">> 
2016-10-26 16:24:26.867 [debug] <0.6744.7>@shaper:update:120 State: {maxrate,1000,999.7776233539505,1477491866866497}, Size=33 
M=32.99266320221285, I=0.751 
2016-10-26 16:24:26.867 [debug] <0.6745.7>@ejabberd_c2s:check_h_attribute:2782 1@mydomain.com/doyCwvN_NNk acknowledged 18 of 18 stanzas 
2016-10-26 16:24:33.969 [info] <0.16878.5>@ejabberd_listener:accept:333 (#Port<0.637900>) Accepted connection 127.0.0.1:58342 -> 127.0.0.1:5280 
2016-10-26 16:24:33.970 [debug] <0.6758.7>@ejabberd_http:init:154 S: [{[<<"websocket">>],ejabberd_http_ws},{[<<"captcha">>],ejabberd_captcha},{[<<"admin">>],ejabberd_web_admin},{[<<"http-bind">>],mod_http_bind}] 
2016-10-26 16:24:33.970 [info] <0.6758.7>@ejabberd_http:init:158 started: {gen_tcp,#Port<0.637900>} 
2016-10-26 16:24:35.306 [debug] <0.6758.7>@ejabberd_http:process_header:281 (#Port<0.637900>) http query: 'GET' <<"/admin/server/mydomain.com/users/">> 
2016-10-26 16:24:35.306 [debug] <0.6758.7>@ejabberd_http:process:353 [<<"admin">>,<<"server">>,<<"mydomain.com">>,<<"users">>] matches [<<"admin">>] 
2016-10-26 16:24:36.915 [debug] <0.6758.7>@ejabberd_http:process_header:281 (#Port<0.637900>) http query: 'GET' <<"/admin/server/mydomain.com/users/">> 
2016-10-26 16:24:36.915 [debug] <0.6758.7>@ejabberd_http:process:353 [<<"admin">>,<<"server">>,<<"mydomain.com">>,<<"users">>] matches [<<"admin">>] 

Answer 1

ejabberd C2S 청취자의 스트림 관리 옵션이 . stream_management 옵션을 true로 설정해야합니다. . 당신은 또한 mod_confirm_delivery을 구현할 필요가 없다면 클라이언트 측 (android)에서 스트림 관리를 가능하게해야한다. . 갑자기 인터넷 연결이 끊어 지더라도 (서버에 여전히 온라인 상태로 표시됨) 사용자는 ejabberd 서버의 mod_ping 모듈을 사용하여이 문제를 처리 할 수 ​​있습니다. 동일하기 때문에 Reference ejabberd configuration Stream Management reference