[TD-11377]<feature>: added a variable to accelerate exiting of dropped dnode

src/dnode/src/dnodeSystem.c

@@ -19,6 +19,7 @@
 #include "tconfig.h"
 #include "dnodeMain.h"
 
+bool          dnodeExit = false;
 static tsem_t exitSem;
 static void   siguser1Handler(int32_t signum, void *sigInfo, void *context);
 static void   siguser2Handler(int32_t signum, void *sigInfo, void *context);
@@ -182,6 +183,8 @@ static void sigintHandler(int32_t signum, void *sigInfo, void *context) {
   syslog(LOG_INFO, "Shut down signal is %d", signum);
   syslog(LOG_INFO, "Shutting down TDengine service...");
 
+  dnodeExit = true;
+
   // inform main thread to exit
   tsem_post(&exitSem);
 #ifdef WINDOWS

src/dnode/src/dnodeVnodes.c

@@ -30,6 +30,7 @@ typedef struct {
   int32_t * vnodeList;
 } SOpenVnodeThread;
 
+extern bool     dnodeExit;
 extern void *   tsDnodeTmr;
 static void *   tsStatusTimer = NULL;
 static uint32_t tsRebootTime = 0;
@@ -225,6 +226,11 @@ static void dnodeProcessStatusRsp(SRpcMsg *pMsg) {
 
         // warning: only for k8s!
         while (tsDnodeNopLoop) {
+          if (dnodeExit) {
+            dInfo("Break loop");
+            return;
+          }
+
           dInfo("Nop loop");
 #ifdef WINDOWS
           Sleep(100);