fix: create trace sometime failed by end_at time has already passed

apps/emqx/src/emqx_trace/emqx_trace.erl

@@ -38,7 +38,8 @@
     delete/1,
     clear/0,
     update/2,
-    check/0
+    check/0,
+    now_second/0
 ]).
 
 -export([
@@ -287,7 +288,7 @@ insert_new_trace(Trace) ->
     transaction(fun emqx_trace_dl:insert_new_trace/1, [Trace]).
 
 update_trace(Traces) ->
-    Now = erlang:system_time(second),
+    Now = now_second(),
     {_Waiting, Running, Finished} = classify_by_time(Traces, Now),
     disable_finished(Finished),
     Started = emqx_trace_handler:running(),
@@ -455,7 +456,7 @@ ensure_map(Trace) when is_list(Trace) ->
     ).
 
 fill_default(Trace = #?TRACE{start_at = undefined}) ->
-    fill_default(Trace#?TRACE{start_at = erlang:system_time(second)});
+    fill_default(Trace#?TRACE{start_at = now_second()});
 fill_default(Trace = #?TRACE{end_at = undefined, start_at = StartAt}) ->
     fill_default(Trace#?TRACE{end_at = StartAt + 10 * 60});
 fill_default(Trace) ->
@@ -493,7 +494,7 @@ to_trace(#{start_at := StartAt} = Trace, Rec) ->
     {ok, Sec} = to_system_second(StartAt),
     to_trace(maps:remove(start_at, Trace), Rec#?TRACE{start_at = Sec});
 to_trace(#{end_at := EndAt} = Trace, Rec) ->
-    Now = erlang:system_time(second),
+    Now = now_second(),
     case to_system_second(EndAt) of
         {ok, Sec} when Sec > Now ->
             to_trace(maps:remove(end_at, Trace), Rec#?TRACE{end_at = Sec});
@@ -517,8 +518,7 @@ validate_ip_address(IP) ->
     end.
 
 to_system_second(Sec) ->
-    Now = erlang:system_time(second),
-    {ok, erlang:max(Now, Sec)}.
+    {ok, erlang:max(now_second(), Sec)}.
 
 zip_dir() ->
     filename:join([trace_dir(), "zip"]).
@@ -570,3 +570,6 @@ filter_cli_handler(Names) ->
         end,
         Names
     ).
+
+now_second() ->
+    os:system_time(second).

apps/emqx/src/emqx_trace/emqx_trace_dl.erl

@@ -30,7 +30,7 @@
 -include("emqx_trace.hrl").
 
 %%================================================================================
-%% API funcions
+%% API functions
 %%================================================================================
 
 %% Introduced in 5.0
@@ -43,7 +43,7 @@ update(Name, Enable) ->
         [#?TRACE{enable = Enable}] ->
             ok;
         [Rec] ->
-            case erlang:system_time(second) >= Rec#?TRACE.end_at of
+            case emqx_trace:now_second() >= Rec#?TRACE.end_at of
                 false -> mnesia:write(?TRACE, Rec#?TRACE{enable = Enable}, write);
                 true -> mnesia:abort(finished)
             end

changes/v5.0.10-en.md

@@ -26,6 +26,8 @@
 
 ## Bug fixes
 
+- Fix create trace sometime failed by end_at time has already passed. [#9302](https://github.com/emqx/emqx/pull/9302)
+
 - Fix error log message when `mechanism` is missing in authentication config [#8924](https://github.com/emqx/emqx/pull/8924).
 
 - Fix HTTP 500 issue when unknown `status` parameter is used in `/gateway` API call [#9225](https://github.com/emqx/emqx/pull/9225).

changes/v5.0.10-zh.md

@@ -25,6 +25,8 @@
 
 ## Bug fixes
 
+- 修复创建追踪日志时偶尔会报`end_at time has already passed`错误，导致创建失败。[#9302](https://github.com/emqx/emqx/pull/9302)
+
 - 优化认认证配置中 `mechanism` 字段缺失情况下的错误日志 [#8924](https://github.com/emqx/emqx/pull/8924)。
 
 - 修复未知 `status` 参数导致 `/gateway` API 发生 HTTP 500 错误的问题 [#9225](https://github.com/emqx/emqx/pull/9225)。