Merge pull request #18793 from taosdata/fix/TD-21070

 enh: collect and record the signal which the dnode was killed in the log file

include/util/tlog.h

@@ -83,8 +83,8 @@ void taosPrintLongString(const char *flags, ELogLevel level, int32_t dflag, cons
 #endif
     ;
 
-bool taosAssertLog(bool condition, const char *file, int32_t line, const char *format, ...);
-#define ASSERTS(condition, ...) taosAssertLog(condition, __FILE__, __LINE__, __VA_ARGS__)
+bool taosAssert(bool condition, const char *file, int32_t line, const char *format, ...);
+#define ASSERTS(condition, ...) taosAssert(condition, __FILE__, __LINE__, __VA_ARGS__)
 #define ASSERT(condition)       ASSERTS(condition, "assert info not provided")
 
 // clang-format off

source/dnode/mgmt/exe/dmMain.c

@@ -17,6 +17,7 @@
 #include "dmMgmt.h"
 #include "mnode.h"
 #include "tconfig.h"
+#include "tglobal.h"
 
 // clang-format off
 #define DM_APOLLO_URL    "The apollo string to use when configuring the server, such as: -a 'jsonFile:./tests/cfg.json', cfg.json text can be '{\"fqdn\":\"td1\"}'."
@@ -45,9 +46,30 @@ static struct {
   SArray      *pArgs;  // SConfigPair
 } global = {0};
 
-static void dmStopDnode(int signum, void *info, void *ctx) { dmStop(); }
+static void dmSetDebugFlag(int32_t signum, void *sigInfo, void *context) { taosSetAllDebugFlag(143, true); }
+static void dmSetAssert(int32_t signum, void *sigInfo, void *context) { tsAssert = 1; }
+
+static void dmStopDnode(int signum, void *sigInfo, void *context) {
+  // taosIgnSignal(SIGUSR1);
+  // taosIgnSignal(SIGUSR2);
+  taosIgnSignal(SIGTERM);
+  taosIgnSignal(SIGHUP);
+  taosIgnSignal(SIGINT);
+  taosIgnSignal(SIGABRT);
+  taosIgnSignal(SIGBREAK);
+
+  dInfo("shut down signal is %d", signum);
+#ifndef WINDOWS
+  dInfo("sender PID:%d cmdline:%s", ((siginfo_t *)sigInfo)->si_pid,
+        taosGetCmdlineByPID(((siginfo_t *)sigInfo)->si_pid));
+#endif
+
+  dmStop();
+}
 
 static void dmSetSignalHandle() {
+  taosSetSignal(SIGUSR1, dmSetDebugFlag);
+  taosSetSignal(SIGUSR2, dmSetAssert);
   taosSetSignal(SIGTERM, dmStopDnode);
   taosSetSignal(SIGHUP, dmStopDnode);
   taosSetSignal(SIGINT, dmStopDnode);

source/util/src/tlog.c

@@ -780,7 +780,7 @@ cmp_end:
   return ret;
 }
 
-bool taosAssertLog(bool condition, const char *file, int32_t line, const char *format, ...) {
+bool taosAssert(bool condition, const char *file, int32_t line, const char *format, ...) {
   if (condition) return false;
 
   const char *flags = "UTL FATAL ";