diff --git a/src/dnode/src/dnodeSystem.c b/src/dnode/src/dnodeSystem.c
index 6c28552e1eb54cc2808720c8379838bcf0166257..a16ff826bf498f4fc56838a36f2ba0539b7ac5e1 100644
--- a/src/dnode/src/dnodeSystem.c
+++ b/src/dnode/src/dnodeSystem.c
@@ -19,43 +19,9 @@
 #include "tconfig.h"
 #include "dnodeMain.h"
 
+static void signal_handler(int32_t signum, siginfo_t *sigInfo, void *context);
 static tsem_t exitSem;
 
-#ifdef WINDOWS
-static void signal_handler(int32_t signum) {
-  dInfo("shut down signal is %d", signum);
-#else
-static void signal_handler(int32_t signum, siginfo_t *sigInfo, void *context) {
-  if (signum == SIGUSR1) {
-    taosCfgDynamicOptions("debugFlag 143");
-    return;
-  }
-  if (signum == SIGUSR2) {
-    taosCfgDynamicOptions("resetlog");
-    return;
-  }
-  dInfo("shut down signal is %d, sender PID:%d cmdline:%s", signum, sigInfo->si_pid, taosGetCmdlineByPID(sigInfo->si_pid));
-#endif
-
-  syslog(LOG_INFO, "Shut down signal is %d", signum);
-  syslog(LOG_INFO, "Shutting down TDengine service...");
-
-  // protect the application from receive another signal
-  struct sigaction act = {{0}};
-  act.sa_handler = SIG_IGN;
-  sigaction(SIGTERM, &act, NULL);
-  sigaction(SIGINT, &act, NULL);
-
-#ifndef WINDOWS
-  sigaction(SIGHUP, &act, NULL);
-  sigaction(SIGUSR1, &act, NULL);
-  sigaction(SIGUSR2, &act, NULL);
-#endif
-
-  // inform main thread to exit
-  tsem_post(&exitSem);
-}
-
 int32_t main(int32_t argc, char *argv[]) {
   int dump_config = 0;
 
@@ -147,8 +113,6 @@ int32_t main(int32_t argc, char *argv[]) {
 
   /* Set termination handler. */
   struct sigaction act = {{0}};
-
-#ifndef WINDOWS
   act.sa_flags = SA_SIGINFO;
   act.sa_sigaction = signal_handler;
   sigaction(SIGTERM, &act, NULL);
@@ -156,11 +120,6 @@ int32_t main(int32_t argc, char *argv[]) {
   sigaction(SIGINT, &act, NULL);
   sigaction(SIGUSR1, &act, NULL);
   sigaction(SIGUSR2, &act, NULL);
-#else
-  act.sa_handler = signal_handler;
-  sigaction(SIGTERM, &act, NULL);
-  sigaction(SIGINT, &act, NULL);
-#endif
 
   // Open /var/log/syslog file to record information.
   openlog("TDengine:", LOG_PID | LOG_CONS | LOG_NDELAY, LOG_LOCAL1);
@@ -187,3 +146,33 @@ int32_t main(int32_t argc, char *argv[]) {
   closelog();
   return EXIT_SUCCESS;
 }
+
+static void signal_handler(int32_t signum, siginfo_t *sigInfo, void *context) {	
+  if (signum == SIGUSR1) {	
+    taosCfgDynamicOptions("debugFlag 143");	
+    return;	
+  }	
+  if (signum == SIGUSR2) {	
+    taosCfgDynamicOptions("resetlog");	
+    return;	
+  }	
+
+  syslog(LOG_INFO, "Shut down signal is %d", signum);	
+  syslog(LOG_INFO, "Shutting down TDengine service...");	
+  // clean the system.	
+  dInfo("shut down signal is %d, sender PID:%d cmdline:%s", signum, sigInfo->si_pid, taosGetCmdlineByPID(sigInfo->si_pid));	
+
+  // protect the application from receive another signal	
+  struct sigaction act = {{0}};	
+#ifndef WINDOWS
+  act.sa_handler = SIG_IGN;	
+#endif  
+  sigaction(SIGTERM, &act, NULL);	
+  sigaction(SIGHUP, &act, NULL);	
+  sigaction(SIGINT, &act, NULL);	
+  sigaction(SIGUSR1, &act, NULL);	
+  sigaction(SIGUSR2, &act, NULL);	
+
+  // inform main thread to exit	
+  tsem_post(&exitSem);	
+}
\ No newline at end of file
diff --git a/src/kit/shell/src/shellMain.c b/src/kit/shell/src/shellMain.c
index 496cef41ba92a7bd7827767bf460541e59da8992..cd801ef07a3f7a0000e76a1601ce7d6372864cac 100644
--- a/src/kit/shell/src/shellMain.c
+++ b/src/kit/shell/src/shellMain.c
@@ -21,7 +21,7 @@
 pthread_t pid;
 static tsem_t cancelSem;
 
-void shellQueryInterruptHandler(int32_t signum) {
+void shellQueryInterruptHandler(int32_t signum, siginfo_t *sigInfo, void *context) {
   tsem_post(&cancelSem);
 }
 
diff --git a/src/os/inc/osWindows.h b/src/os/inc/osWindows.h
index 396577a5d7feae0c8c679486b861e48cc8d72412..15b26d208d0a549facd751ceb1ccbb36b4f9c217 100644
--- a/src/os/inc/osWindows.h
+++ b/src/os/inc/osWindows.h
@@ -193,9 +193,19 @@ int        gettimeofday(struct timeval *ptv, void *pTimeZone);
 
 //for signal, not dispose
 #define SIGALRM 1234
+#define SIGHUP  1234
+#define SIGUSR1 1234
+#define SIGUSR2 1234
+#define SA_SIGINFO 1234
+
 typedef int sigset_t;
+typedef struct siginfo_t {
+  int si_pid;
+} siginfo_t;
 struct sigaction {
-  void (*sa_handler)(int);
+  int sa_flags;
+  void (*sa_handler)(int32_t signum, siginfo_t *sigInfo, void *context);
+  void (*sa_sigaction)(int32_t signum, siginfo_t *sigInfo, void *context);
 };
 int sigaction(int, struct sigaction *, void *);
 
diff --git a/src/os/src/linux/linuxEnv.c b/src/os/src/linux/linuxEnv.c
index 5772885cb43454d147dd05dc437347bbdd15f741..e3eadbc94bcf71e7cf09e70901e4de0aed427c54 100644
--- a/src/os/src/linux/linuxEnv.c
+++ b/src/os/src/linux/linuxEnv.c
@@ -18,7 +18,6 @@
 #include "tglobal.h"
 
 void osInit() {
-
 #ifdef _TD_POWER_
   if (configDir[0] == 0) {
     strcpy(configDir, "/etc/power");
@@ -43,16 +42,14 @@ void osInit() {
 
 char cmdline[1024];
 
-char *taosGetCmdlineByPID(int pid)
-{
-  sprintf(cmdline, "/proc/%d/cmdline",pid);
-  FILE* f = fopen(cmdline,"r");
-  if(f){
+char* taosGetCmdlineByPID(int pid) {
+  sprintf(cmdline, "/proc/%d/cmdline", pid);
+  FILE* f = fopen(cmdline, "r");
+  if (f) {
     size_t size;
     size = fread(cmdline, sizeof(char), 1024, f);
-    if(size>0){
-      if('\n'==cmdline[size-1])
-        cmdline[size-1]='\0';
+    if (size > 0) {
+      if ('\n' == cmdline[size - 1]) cmdline[size - 1] = '\0';
     }
     fclose(f);
   }
diff --git a/src/os/src/windows/wSysinfo.c b/src/os/src/windows/wSysinfo.c
index b3fd4c28b9c92f37cba8eb34fcf8eb5fb564eadb..0499173a0b1f5bd84d9dd6bcaf0613682f7b8027 100644
--- a/src/os/src/windows/wSysinfo.c
+++ b/src/os/src/windows/wSysinfo.c
@@ -32,10 +32,51 @@
 #endif
 
 #pragma warning(push)
-#pragma warning(disable:4091)
+#pragma warning(disable : 4091)
 #include <DbgHelp.h>
 #pragma warning(pop)
 
+static int32_t taosGetTotalMemory() {
+  MEMORYSTATUSEX memsStat;
+  memsStat.dwLength = sizeof(memsStat);
+  if (!GlobalMemoryStatusEx(&memsStat)) {
+    return 0;
+  }
+
+  float nMemTotal = memsStat.ullTotalPhys / (1024.0f * 1024.0f);
+  return (int32_t)nMemTotal;
+}
+
+bool taosGetSysMemory(float *memoryUsedMB) {
+  MEMORYSTATUSEX memsStat;
+  memsStat.dwLength = sizeof(memsStat);
+  if (!GlobalMemoryStatusEx(&memsStat)) {
+    return false;
+  }
+
+  float nMemFree = memsStat.ullAvailPhys / (1024.0f * 1024.0f);
+  float nMemTotal = memsStat.ullTotalPhys / (1024.0f * 1024.0f);
+
+  *memoryUsedMB = nMemTotal - nMemFree;
+  return true;
+}
+
+bool taosGetProcMemory(float *memoryUsedMB) {
+  unsigned bytes_used = 0;
+
+#if defined(_WIN32) && defined(_MSC_VER)
+  PROCESS_MEMORY_COUNTERS pmc;
+  HANDLE                  cur_proc = GetCurrentProcess();
+
+  if (GetProcessMemoryInfo(cur_proc, &pmc, sizeof(pmc))) {
+    bytes_used = (unsigned)(pmc.WorkingSetSize + pmc.PagefileUsage);
+  }
+#endif
+
+  *memoryUsedMB = (float)bytes_used / 1024 / 1024;
+  return true;
+}
+
 static void taosGetSystemTimezone() {
   // get and set default timezone
   SGlobalCfg *cfg_timezone = taosGetConfigOption("timezone");
@@ -71,16 +112,16 @@ static void taosGetSystemLocale() {
   }
 }
 
-void taosPrintOsInfo() {}
-
-void taosKillSystem() {
-  uError("function taosKillSystem, exit!");
-  exit(0);
+static int32_t taosGetCpuCores() {
+  SYSTEM_INFO info;
+  GetSystemInfo(&info);
+  return (int32_t)info.dwNumberOfProcessors;
 }
 
-void taosGetSystemInfo() {
-  taosGetSystemTimezone();
-  taosGetSystemLocale();
+bool taosGetCpuUsage(float *sysCpuUsage, float *procCpuUsage) {
+  *sysCpuUsage = 0;
+  *procCpuUsage = 0;
+  return true;
 }
 
 bool taosGetDisk() {
@@ -89,20 +130,35 @@ bool taosGetDisk() {
   unsigned _int64 i64FreeBytesToCaller;
   unsigned _int64 i64TotalBytes;
   unsigned _int64 i64FreeBytes;
-  char            dir[4] = {'C', ':', '\\', '\0'};
-  int             drive_type;
 
   if (tscEmbedded) {
-    drive_type = GetDriveTypeA(dir);
-    if (drive_type == DRIVE_FIXED) {
-      fResult = GetDiskFreeSpaceExA(dir, (PULARGE_INTEGER)&i64FreeBytesToCaller, (PULARGE_INTEGER)&i64TotalBytes,
-                                    (PULARGE_INTEGER)&i64FreeBytes);
-      if (fResult) {
-        tsTotalDataDirGB = tsTotalLogDirGB = tsTotalTmpDirGB = (float)(i64TotalBytes / unit);
-        tsAvailDataDirGB = tsAvailLogDirGB = tsAvailTmpDirectorySpace = (float)(i64FreeBytes / unit);
-      }
+    fResult = GetDiskFreeSpaceExA(tsDataDir, (PULARGE_INTEGER)&i64FreeBytesToCaller, (PULARGE_INTEGER)&i64TotalBytes,
+                                  (PULARGE_INTEGER)&i64FreeBytes);
+    if (fResult) {
+      tsTotalDataDirGB = (float)(i64TotalBytes / unit);
+      tsAvailDataDirGB = (float)(i64FreeBytes / unit);
     }
   }
+
+  fResult = GetDiskFreeSpaceExA(tsLogDir, (PULARGE_INTEGER)&i64FreeBytesToCaller, (PULARGE_INTEGER)&i64TotalBytes,
+                                (PULARGE_INTEGER)&i64FreeBytes);
+  if (fResult) {
+    tsTotalLogDirGB = (float)(i64TotalBytes / unit);
+    tsAvailLogDirGB = (float)(i64FreeBytes / unit);
+  }
+
+  fResult = GetDiskFreeSpaceExA(tsTempDir, (PULARGE_INTEGER)&i64FreeBytesToCaller, (PULARGE_INTEGER)&i64TotalBytes,
+                                (PULARGE_INTEGER)&i64FreeBytes);
+  if (fResult) {
+    tsTotalTmpDirGB = (float)(i64TotalBytes / unit);
+    tsAvailTmpDirectorySpace = (float)(i64FreeBytes / unit);
+  }
+
+  return true;
+}
+
+bool taosGetBandSpeed(float *bandSpeedKb) {
+  *bandSpeedKb = 0;
   return true;
 }
 
@@ -144,48 +200,30 @@ bool taosGetProcIO(float *readKB, float *writeKB) {
   return true;
 }
 
-bool taosGetBandSpeed(float *bandSpeedKb) {
-  *bandSpeedKb = 0;
-  return true;
-}
-
-bool taosGetCpuUsage(float *sysCpuUsage, float *procCpuUsage) {
-  *sysCpuUsage = 0;
-  *procCpuUsage = 0;
-  return true;
-}
-
-bool taosGetProcMemory(float *memoryUsedMB) {
-  unsigned bytes_used = 0;
-#if 0
-#if defined(_WIN32) && defined(_MSC_VER)
-   PROCESS_MEMORY_COUNTERS pmc;
-   HANDLE                  cur_proc = GetCurrentProcess();
-
-   if (GetProcessMemoryInfo(cur_proc, &pmc, sizeof(pmc))) {
-     bytes_used = (unsigned)(pmc.WorkingSetSize + pmc.PagefileUsage);
-   }
-#endif
-#endif
+void taosGetSystemInfo() {
+  tsNumOfCores = taosGetCpuCores();
+  tsTotalMemoryMB = taosGetTotalMemory();
 
-  *memoryUsedMB = (float)bytes_used / 1024 / 1024;
+  float tmp1, tmp2;
+  taosGetDisk();
+  taosGetBandSpeed(&tmp1);
+  taosGetCpuUsage(&tmp1, &tmp2);
+  taosGetProcIO(&tmp1, &tmp2);
 
-  return true;
+  taosGetSystemTimezone();
+  taosGetSystemLocale();
 }
 
-bool taosGetSysMemory(float *memoryUsedMB) {
-  MEMORYSTATUSEX memsStat;
-  float          nMemFree;
-  float          nMemTotal;
+void taosPrintOsInfo() {
+  uInfo(" os numOfCores:          %d", tsNumOfCores);
+  uInfo(" os totalDisk:           %f(GB)", tsTotalDataDirGB);
+  uInfo(" os totalMemory:         %d(MB)", tsTotalMemoryMB);
+  uInfo("==================================");
+}
 
-  memsStat.dwLength = sizeof(memsStat);
-  if (!GlobalMemoryStatusEx(&memsStat)) {
-    return false;
-  }
-  nMemFree = memsStat.ullAvailPhys / (1024.0f * 1024.0f);
-  nMemTotal = memsStat.ullTotalPhys / (1024.0f * 1024.0f);
-  *memoryUsedMB = nMemTotal - nMemFree;
-  return true;
+void taosKillSystem() {
+  uError("function taosKillSystem, exit!");
+  exit(0);
 }
 
 int taosSystem(const char *cmd) {
@@ -240,4 +278,6 @@ void taosSetCoreDump() { SetUnhandledExceptionFilter(&FlCrashDump); }
 bool taosGetSystemUid(char *uid) {
   sprintf(uid, "uid_not_implemented_yet");
   return true;
-}
\ No newline at end of file
+}
+
+char *taosGetCmdlineByPID(int pid) { return ""; }
diff --git a/src/sync/src/syncArbitrator.c b/src/sync/src/syncArbitrator.c
index dbcc4b40a6efca3c9f66f6f2fcb512f150bfd2fd..06b4a61d6f9132f190af3c446bf1db72b4ca43cc 100644
--- a/src/sync/src/syncArbitrator.c
+++ b/src/sync/src/syncArbitrator.c
@@ -27,7 +27,7 @@
 #include "syncInt.h"
 #include "syncTcp.h"
 
-static void    arbSignalHandler(int32_t signum);
+static void    arbSignalHandler(int32_t signum, siginfo_t *sigInfo, void *context);
 static void    arbProcessIncommingConnection(SOCKET connFd, uint32_t sourceIp);
 static void    arbProcessBrokenLink(int64_t rid);
 static int32_t arbProcessPeerMsg(int64_t rid, void *buffer);
@@ -35,9 +35,9 @@ static tsem_t  tsArbSem;
 static void *  tsArbTcpPool;
 
 typedef struct {
-  char    id[TSDB_EP_LEN + 24];
-  SOCKET  nodeFd;
-  void *  pConn;
+  char   id[TSDB_EP_LEN + 24];
+  SOCKET nodeFd;
+  void * pConn;
 } SNodeConn;
 
 int32_t main(int32_t argc, char *argv[]) {
@@ -70,14 +70,13 @@ int32_t main(int32_t argc, char *argv[]) {
 
   /* Set termination handler. */
   struct sigaction act = {{0}};
-  memset(&act, 0, sizeof(struct sigaction));
+  act.sa_flags = SA_SIGINFO;
+  act.sa_sigaction = arbSignalHandler;
 
   act.sa_handler = arbSignalHandler;
   sigaction(SIGTERM, &act, NULL);
-  sigaction(SIGINT, &act, NULL);
-#ifndef WINDOWS
   sigaction(SIGHUP, &act, NULL);
-#endif
+  sigaction(SIGINT, &act, NULL);
 
   tsAsyncLog = 0;
   strcat(arbLogPath, "/arbitrator.log");
@@ -107,6 +106,7 @@ int32_t main(int32_t argc, char *argv[]) {
   syncCloseTcpThreadPool(tsArbTcpPool);
   sInfo("TAOS arbitrator is shut down");
 
+  closelog();
   return 0;
 }
 
@@ -174,16 +174,16 @@ static int32_t arbProcessPeerMsg(int64_t rid, void *buffer) {
   return 0;
 }
 
-static void arbSignalHandler(int32_t signum) {
+static void arbSignalHandler(int32_t signum, siginfo_t *sigInfo, void *context) {
   struct sigaction act = {{0}};
+#ifndef WINDOWS
   act.sa_handler = SIG_IGN;
+#endif
   sigaction(SIGTERM, &act, NULL);
-  sigaction(SIGINT, &act, NULL);
-#ifndef WINDOWS
   sigaction(SIGHUP, &act, NULL);
-#endif
+  sigaction(SIGINT, &act, NULL);
 
-  sInfo("shut down signal is %d", signum);
+  sInfo("shut down signal is %d, sender PID:%d", signum, sigInfo->si_pid);
 
   // inform main thread to exit
   tsem_post(&tsArbSem);