[GitHub] [incubator-doris] xinyiZzz commented on a change in pull request #7032: [Heartbeat] Support cancel outdated query after FE restart

[GitBox <gi...@apache.org>]

xinyiZzz commented on a change in pull request #7032:
URL: https://github.com/apache/incubator-doris/pull/7032#discussion_r745379083



##########
File path: be/src/runtime/exec_env.h
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@@ -219,6 +225,9 @@ class ExecEnv {
     HeartbeatFlags* _heartbeat_flags = nullptr;
 
     PluginMgr* _plugin_mgr = nullptr;
+
+    std::map<std::string, FrontendStartInfo*> _frontends_start_time;

Review comment:
       Thanks for your advice,
   But `_frontends_start_time` I understand that there is no need to lock, it will only be modified when the BE is processing the heartbeat, and a BE process has only one thread to process the heartbeat.




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