[rabbitmq-discuss] Web STOMP hangs after a while

[Nikita Tsukanov]

I see a lot of messages like this

=ERROR REPORT==== 9-Feb-2014::07:24:04 ===
** Generic server <0.30556.119> terminating
** Last message in was session_timeout
** When Server state == {session,undefined,
                            {[],[]},
                            undefined,#Ref<0.0.112.43426>,300000,undefined,
                            25000,connecting,undefined,
                            #Fun<rabbit_ws_sockjs.1.120271989>,{},
                            {sockjs_session,
                                {<0.30556.119>,
                                 [{peername,{{127,0,0,1},49363}},
                                  {sockname,{{127,0,0,1},8080}},
                                  {path,"/stomp/276/x1z4pu8e/websocket"},
                                  {headers,[]}]}}}
** Reason for termination ==
** {function_clause,[{gen_server,cast,
                                 [{},sockjs_closed],
                                 [{file,"gen_server.erl"},{line,194}]},
                     {rabbit_ws_sockjs,service_stomp,3,[]},
                     {sockjs_session,emit,2,[]},
                     {sockjs_session,terminate,2,[]},
                     {gen_server,terminate,6,
                                 [{file,"gen_server.erl"},{line,719}]},
                     {proc_lib,init_p_do_apply,3,
                               [{file,"proc_lib.erl"},{line,239}]}]}

in RabbitMQ log and then even stomp/info stops responding to HTTP requests.
It happens after several hours under load of about 100-150 connections.

RabbitMQ itself and regular STOMP (that one on port 61613) continue working
without any issues.

Ubuntu 13.10, RabbitMQ 3.2.3, Erlang R16B03
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