After a week,the memories used by the emqx increases,about two weeks more until a oom-killer occurs by the system.The processes are no more than max count of processes. I try the follow commands ,and don’t know the reason. Can anyone please help me?
version: emqx 4.2.14,ubuntu 20.04.4 LTS,
details as follows:
emqx remote_console information on the remote server.
========================================================================================
'emqx@127.0.0.1' 01:01:02
Load: cpu 1 Memory: total 5515460 binary 2269778
procs 381 processes 3072341 code 29676
runq 0 atom 1410 ets 7194
Pid Name or Initial Func Time Reds Memory MsgQ Current Function
----------------------------------------------------------------------------------------
<8867.29600.2> emqx_connection:init '-' 42******** 2246890 gen:do_call/4
<8867.19863.2> emqx_connection:init '-' 42******** 2320382 gen:do_call/4
<8867.28846.11>emqx_connection:init '-' 753 4723508 0 emqx_connection:recv
<8867.28855.11>emqx_connection:init '-' 753 4722476 0 emqx_connection:recv
<8867.28890.11>emqx_connection:init '-' 753 4721388 0 emqx_connection:recv
<8867.28845.11>emqx_connection:init '-' 753 4720788 0 emqx_connection:recv
<8867.28851.11>emqx_connection:init '-' 712 2919140 0 emqx_connection:recv
<8867.28840.11>emqx_connection:init '-' 753 1948636 0 emqx_connection:recv
<8867.28959.11>emqx_connection:init '-' 891 1804500 0 emqx_connection:recv
<8867.29000.11>emqx_connection:init '-' 218185 1804456 0 emqx_connection:recv
<8867.28946.11>emqx_connection:init '-' 753 1804444 0 emqx_connection:recv
<8867.28862.11>emqx_connection:init '-' 2343 1803900 0 emqx_connection:recv
<8867.1405.0> ranch_sup '-' 1 602176 0 gen_server:loop/7
<8867.28966.11>etop_txt:init/1 '-' 19209 426700 0 etop:update/1
<8867.1288.0> application_controll '-' 1 319556 0 gen_server:loop/7
<8867.28942.11>erlang:apply/2 '-' 1 264164 0 shell:get_command1/5
<8867.1621.0> ranch_conns_sup:init '-' 42 236152 0 ranch_conns_sup:loop
<8867.1599.0> ranch_conns_sup:init '-' 2 230544 0 ranch_conns_sup:loop
<8867.1954.0> emqx_connection:init '-' 3434 143280 0 emqx_connection:recv
<8867.1807.0> emqx_connection:init '-' 3574 143224 0 emqx_connection:recv
========================================================================================one process information:(emqx@127.0.0.1)3> process_info(pid(0,29600,2), current_stacktrace).
{current_stacktrace,[{gen,do_call,4,
[{file,"gen.erl"},{line,167}]},
{gen_server,call,3,[{file,"gen_server.erl"},{line,219}]},
{emqx_cm,takeover_session,2,
[{file,"emqx_cm.erl"},{line,267}]},
{emqx_cm,'-open_session/3-fun-1-',5,
[{file,"emqx_cm.erl"},{line,222}]},
{emqx_cm_locker,trans,3,
[{file,"emqx_cm_locker.erl"},{line,46}]},
{emqx_channel,process_connect,2,
[{file,"emqx_channel.erl"},{line,434}]},
{emqx_connection,with_channel,3,
[{file,"emqx_connection.erl"},{line,553}]},
{emqx_connection,process_msg,3,
[{file,"emqx_connection.erl"},{line,293}]}]}
another process
rp(erlang:process_info(pid(0,19863,2), backtrace)).
{backtrace,<<"Program counter: 0x00007fe26a53d860 (gen:do_call/4 + 3168)\n
CP: 0x0000000000000000 (invalid)\n\n
0x00007fde7c33fa28 Return addr 0x00007fe26a551908 (gen_server:call/3 + 128)\n
y(0) infinity\n
y(1) []\n
y(2) #Ref<0.2499957634.4089446403.17060>\n
y(3) <0.19863.2>\n\n
0x00007fde7c33fa50 Return addr 0x00007fe2681a03d0 (emqx_cm:takeover_session/2 + 312)\n
y(0) infinity\n
y(1) {takeover,begin}\n
y(2) <0.19863.2>\n
y(3) Catch 0x00007fe26a551908 (gen_server:call/3 + 128)\n\n
0x00007fde7c33fa78 Return addr 0x00007fe2681a28192 (emqx_cm:'-open_session/3-fun-1-'/5 + 96)\n
y(0) emqx_connection\n
y(1) <0.19863.2>\n\n
0x00007fde7c33fa90 Return addr 0x00007fe26819a978 (emqx_cm_locker:trans/3 + 360)\n
y(0) []\n
y(1) []\n
y(2) <0.19863.2>\n
y(3) <<\"192.168.30.16_1701152524553\">>\n
y(4) #{clean_start=>false,clientid=><<\"192.168.30.16_1701152524553\">>,conn_mod=>emqx_connection,conn_props=>#{},connected_at=>1701153199092,disconnected_at=>1701153199091,expiry_interval=>71680,keepalive=>60,peercert=>nossl,peername=>{{192,168,30,43},57440},proto_name=><<\"MQTT\">>,proto_ver=>4,receive_maximum=>32,sockname=>{{192,168,30,16},1883},socktype=>tcp,username=><<\"admin\">>}\n
y(5) #{anonymous=>true,auth_result=>success,clientid=><<\"192.168.30.16_1701152524553\">>,is_bridge=>false,is_superuser=>false,mountpoint=>undefined,peerhost=>{192,168,30,43},protocol=>mqtt,sockport=>1883,username=><<\"admin\">>,zone=>external}\n\n
0x00007fde7c33fac8 Return addr 0x00007fe26818192b8 (emqx_channel:process_connect/2 + 168)\n
y(0) []\n
y(1) []\n
y(2) <<\"192.168.30.16_1701152524553\">>\n
y(3) Catch 0x00007fe26819a9b8 (emqx_cm_locker:trans/3 + 424)\n\n
0x00007fde7c33faf0 Return addr 0x00007fe268197608 (emqx_connection:with_channel/3 + 232)\n
y(0) []\n
y(1) []\n
y(2) {channel,#{clean_start=>false,clientid=><<\"192.168.30.16_1701152524553\">>,conn_mod=>emqx_connection,conn_props=>#{},connected_at=>1701153199092,disconnected_at=>1701153199091,expiry_interval=>71680,keepalive=>60,peercert=>nossl,peername=>{{192,168,30,43},57440},proto_name=><<\"MQTT\">>,proto_ver=>4,receive_maximum=>32,sockname=>{{192,168,30,16},1883},socktype=>tcp,username=><<\"admin\">>},#{anonymous=>true,auth_result=>success,clientid=><<\"192.168.30.16_1701152524553\">>,is_bridge=>false,is_superuser=>false,mountpoint=>undefined,peerhost=>{192,168,30,43},protocol=>mqtt,sockport=>1883,username=><<\"admin\">>,zone=>external},{session,#{<<\"product/direct/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/direct/info/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/direct/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gateway/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gateway/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw/info/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw_chlidev/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw_chlidev/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/order_return/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}}},0,false,{inflight,32,{0,nil}},{mqueue,true,1916800,0,0,none,infinity,{queue,[],[],0}},1,30000,#{},19168,300000,1701152524859},{keepalive,45000,0,0},undefined,#{inbound=>#{},outbound=>#{}},undefined,#{},undefined,#{alive_timer=>#Ref<0.2499957634.4089446403.15885>,expire_timer=>#Ref<0.2499957634.4089446403.17052>},connected,false,false,[]}\ny(3) #{}\n\n0x00007fde7c33fb18 Return addr 0x00007fe2681948b0 (emqx_connection:process_msg/3 + 136)\n
y(0) []\n
y(1) {state,esockd_transport,#Port<0.17354>,{{192,168,30,43},57440},{{192,168,30,16},1883},closed,19168,undefined,undefined,{none,#{max_size=>19248576,strict_mode=>false,version=>4}},#Fun<emqx_frame.4.19219284926>,{channel,#{clean_start=>false,clientid=><<\"192.168.30.16_1701152524553\">>,conn_mod=>emqx_connection,conn_props=>#{},connected_at=>1701153199074,disconnected_at=>1701153199091,expiry_interval=>71680,keepalive=>60,peercert=>nossl,peername=>{{192,168,30,43},57440},proto_name=><<\"MQTT\">>,proto_ver=>4,receive_maximum=>32,sockname=>{{192,168,30,16},1883},socktype=>tcp,username=><<\"admin\">>},#{anonymous=>true,auth_result=>success,clientid=><<\"192.168.30.16_1701152524553\">>,is_bridge=>false,is_superuser=>false,mountpoint=>undefined,peerhost=>{192,168,30,43},protocol=>mqtt,sockport=>1883,username=><<\"admin\">>,zone=>external},{session,#{<<\"product/direct/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/direct/info/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/direct/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gateway/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gateway/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw/info/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw_chlidev/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw_chlidev/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/order_return/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}}},0,false,{inflight,32,{0,nil}},{mqueue,true,1916800,0,0,none,infinity,{queue,[],[],0}},1,30000,#{},19168,300000,1701152524859},{keepalive,45000,0,0},undefined,#{inbound=>#{},outbound=>#{}},undefined,#{},undefined,#{alive_timer=>#Ref<0.2499957634.4089446403.15885>,expire_timer=>#Ref<0.2499957634.4089446403.17052>},disconnected,false,false,[]},{gc_state,#{cnt=>{16000,16000},oct=>{16777216,16777216}}},#Ref<0.2499957634.4089708546.12231>,15000,undefined}\n
y(2) []\n\n0x00007fde7c33fb38 Return addr 0x00007fe26a4ddee8 (proc_lib:wake_up/3 + 1168)\n
y(0) []\n
y(1) {state,esockd_transport,#Port<0.17354>,{{192,168,30,43},57440},{{192,168,30,16},1883},closed,19168,undefined,undefined,{none,#{max_size=>19248576,strict_mode=>false,version=>4}},#Fun<emqx_frame.4.19219284926>,{channel,#{clean_start=>false,clientid=><<\"192.168.30.16_1701152524553\">>,conn_mod=>emqx_connection,conn_props=>#{},connected_at=>1701153199074,disconnected_at=>1701153199091,expiry_interval=>71680,keepalive=>60,peercert=>nossl,peername=>{{192,168,30,43},57440},proto_name=><<\"MQTT\">>,proto_ver=>4,receive_maximum=>32,sockname=>{{192,168,30,16},1883},socktype=>tcp,username=><<\"admin\">>},#{anonymous=>true,auth_result=>success,clientid=><<\"192.168.30.16_1701152524553\">>,is_bridge=>false,is_superuser=>false,mountpoint=>undefined,peerhost=>{192,168,30,43},protocol=>mqtt,sockport=>1883,username=><<\"admin\">>,zone=>external},{session,#{<<\"product/direct/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/direct/info/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/direct/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gateway/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gateway/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw/info/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw_chlidev/data/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/gw_chlidev/status/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}},<<\"product/order_return/#\">>=>#{nl=>0,qos=>2,rap=>0,rh=>0,sub_props=>#{}}},0,false,{inflight,32,{0,nil}},{mqueue,true,1916800,0,0,none,infinity,{queue,[],[],0}},1,30000,#{},19168,300000,1701152524859},{keepalive,45000,0,0},undefined,#{inbound=>#{},outbound=>#{}},undefined,#{},undefined,#{alive_timer=>#Ref<0.2499957634.4089446403.15885>,expire_timer=>#Ref<0.2499957634.4089446403.17052>},disconnected,false,false,[]},{gc_state,#{cnt=>{16000,16000},oct=>{16777216,16777216}}},#Ref<0.2499957634.4089708546.12231>,15000,undefined}\n
y(2) <0.1652.0>\n
y(3) Catch 0x00007fe2681948b0 (emqx_connection:process_msg/3 + 136)\n\n0x00007fde7c33fb60 Return addr 0x000055a7bdfc8248 (<terminate process normally>)\n
y(0) []\n
y(1) []\n
y(2) Catch 0x00007fe26a4ddf08 (proc_lib:wake_up/3 + 152)\n">>}