Merge pull request #10683 from zhongwencool/cherry-pick-pr-from-master

chore: cherry pick pr(10626&10659) from master

apps/emqx/src/emqx_os_mon.erl

@@ -23,8 +23,6 @@
 -export([start_link/0]).
 
 -export([
-    get_mem_check_interval/0,
-    set_mem_check_interval/1,
     get_sysmem_high_watermark/0,
     set_sysmem_high_watermark/1,
     get_procmem_high_watermark/0,
@@ -46,6 +44,9 @@
     terminate/2,
     code_change/3
 ]).
+-ifdef(TEST).
+-export([is_sysmem_check_supported/0]).
+-endif.
 
 -include("emqx.hrl").
 
@@ -61,14 +62,6 @@ update(OS) ->
 %% API
 %%--------------------------------------------------------------------
 
-get_mem_check_interval() ->
-    memsup:get_check_interval().
-
-set_mem_check_interval(Seconds) when Seconds < 60000 ->
-    memsup:set_check_interval(1);
-set_mem_check_interval(Seconds) ->
-    memsup:set_check_interval(Seconds div 60000).
-
 get_sysmem_high_watermark() ->
     gen_server:call(?OS_MON, ?FUNCTION_NAME, infinity).
 
@@ -103,11 +96,9 @@ init_os_monitor() ->
 init_os_monitor(OS) ->
     #{
         sysmem_high_watermark := SysHW,
-        procmem_high_watermark := PHW,
+        procmem_high_watermark := PHW
-        mem_check_interval := MCI
     } = OS,
     set_procmem_high_watermark(PHW),
-    set_mem_check_interval(MCI),
     ok = update_mem_alarm_status(SysHW),
     SysHW.
 

apps/emqx/test/emqx_os_mon_SUITE.erl

@@ -43,8 +43,8 @@ init_per_testcase(t_cpu_check_alarm, Config) ->
     {ok, _} = supervisor:restart_child(emqx_sys_sup, emqx_os_mon),
     Config;
 init_per_testcase(t_sys_mem_check_alarm, Config) ->
-    case os:type() of
+    case emqx_os_mon:is_sysmem_check_supported() of
-        {unix, linux} ->
+        true ->
             SysMon = emqx_config:get([sysmon, os], #{}),
             emqx_config:put([sysmon, os], SysMon#{
                 sysmem_high_watermark => 0.51,
@@ -54,7 +54,7 @@ init_per_testcase(t_sys_mem_check_alarm, Config) ->
             ok = supervisor:terminate_child(emqx_sys_sup, emqx_os_mon),
             {ok, _} = supervisor:restart_child(emqx_sys_sup, emqx_os_mon),
             Config;
-        _ ->
+        false ->
             Config
     end;
 init_per_testcase(_, Config) ->
@@ -63,12 +63,6 @@ init_per_testcase(_, Config) ->
     Config.
 
 t_api(_) ->
-    ?assertEqual(60000, emqx_os_mon:get_mem_check_interval()),
-    ?assertEqual(ok, emqx_os_mon:set_mem_check_interval(30000)),
-    ?assertEqual(60000, emqx_os_mon:get_mem_check_interval()),
-    ?assertEqual(ok, emqx_os_mon:set_mem_check_interval(122000)),
-    ?assertEqual(120000, emqx_os_mon:get_mem_check_interval()),
-
     ?assertEqual(0.7, emqx_os_mon:get_sysmem_high_watermark()),
     ?assertEqual(ok, emqx_os_mon:set_sysmem_high_watermark(0.8)),
     ?assertEqual(0.8, emqx_os_mon:get_sysmem_high_watermark()),
@@ -86,12 +80,29 @@ t_api(_) ->
     gen_server:stop(emqx_os_mon),
     ok.
 
+t_sys_mem_check_disable(Config) ->
+    case emqx_os_mon:is_sysmem_check_supported() of
+        true -> do_sys_mem_check_disable(Config);
+        false -> skip
+    end.
+
+do_sys_mem_check_disable(_Config) ->
+    MemRef0 = maps:get(mem_time_ref, sys:get_state(emqx_os_mon)),
+    ?assertEqual(true, is_reference(MemRef0), MemRef0),
+    emqx_config:put([sysmon, os, mem_check_interval], 1000),
+    emqx_os_mon:update(emqx_config:get([sysmon, os])),
+    MemRef1 = maps:get(mem_time_ref, sys:get_state(emqx_os_mon)),
+    ?assertEqual(true, is_reference(MemRef1), {MemRef0, MemRef1}),
+    ?assertNotEqual(MemRef0, MemRef1),
+    emqx_config:put([sysmon, os, mem_check_interval], disabled),
+    emqx_os_mon:update(emqx_config:get([sysmon, os])),
+    ?assertEqual(undefined, maps:get(mem_time_ref, sys:get_state(emqx_os_mon))),
+    ok.
+
 t_sys_mem_check_alarm(Config) ->
-    case os:type() of
+    case emqx_os_mon:is_sysmem_check_supported() of
-        {unix, linux} ->
+        true -> do_sys_mem_check_alarm(Config);
-            do_sys_mem_check_alarm(Config);
+        false -> skip
-        _ ->
-            skip
     end.
 
 do_sys_mem_check_alarm(_Config) ->

changes/ce/fix-10659.en.md

@@ -0,0 +1 @@
+Fix the issue where emqx cannot start when `sysmon.os.mem_check_interval` is disabled.

mix.exs

@@ -65,7 +65,7 @@ defmodule EMQXUmbrella.MixProject do
       # maybe forbid to fetch quicer
       {:emqtt,
        github: "emqx/emqtt", tag: "1.8.5", override: true, system_env: maybe_no_quic_env()},
-      {:rulesql, github: "emqx/rulesql", tag: "0.1.5"},
+      {:rulesql, github: "emqx/rulesql", tag: "0.1.6"},
       {:observer_cli, "1.7.1"},
       {:system_monitor, github: "ieQu1/system_monitor", tag: "3.0.3"},
       {:telemetry, "1.1.0"},

rebar.config

@@ -70,7 +70,7 @@
     , {replayq, {git, "https://github.com/emqx/replayq.git", {tag, "0.3.7"}}}
     , {pbkdf2, {git, "https://github.com/emqx/erlang-pbkdf2.git", {tag, "2.0.4"}}}
     , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.8.5"}}}
-    , {rulesql, {git, "https://github.com/emqx/rulesql", {tag, "0.1.5"}}}
+    , {rulesql, {git, "https://github.com/emqx/rulesql", {tag, "0.1.6"}}}
     , {observer_cli, "1.7.1"} % NOTE: depends on recon 2.5.x
     , {system_monitor, {git, "https://github.com/ieQu1/system_monitor", {tag, "3.0.3"}}}
     , {getopt, "1.0.2"}