fix the issue #404

src/client/src/tscSystem.c

@@ -47,12 +47,18 @@ int     slaveIndex;
 void *  tscTmr;
 void *  tscQhandle;
 void *  tscConnCache;
+void *  tscCheckDiskUsageTmr;
 int     tsInsertHeadSize;
 
 extern int            tscEmbedded;
 int                   tscNumOfThreads;
 static pthread_once_t tscinit = PTHREAD_ONCE_INIT;
 
+void tscCheckDiskUsage(void *para, void *unused) {
+  taosGetDisk();
+  taosTmrReset(tscCheckDiskUsage, 1000, NULL, tscTmr, &tscCheckDiskUsageTmr);
+}
+
 void taos_init_imp() {
   char        temp[128];
   struct stat dirstat;
@@ -81,6 +87,7 @@ void taos_init_imp() {
 
     tsReadGlobalConfig();
     tsPrintGlobalConfig();
+    taosTmrReset(tscCheckDiskUsage, 10, NULL, tscTmr, &tscCheckDiskUsageTmr);
 
     tscTrace("starting to initialize TAOS client ...");
     tscTrace("Local IP address is:%s", tsLocalIp);

src/util/src/tsystem.c

@@ -326,13 +326,15 @@ bool taosGetDisk() {
   struct statvfs info;
   const double   unit = 1024 * 1024 * 1024;
 
-  if (statvfs(dataDir, &info)) {
-    tsTotalDataDirGB = 0;
-    tsAvailDataDirGB = 0;
-    return false;
-  } else {
-    tsTotalDataDirGB = (float)((double)info.f_blocks * (double)info.f_frsize / unit);
-    tsAvailDataDirGB = (float)((double)info.f_bavail * (double)info.f_frsize / unit);
+  if (tscEmbedded) {
+    if (statvfs(tsDirectory, &info)) {
+      tsTotalDataDirGB = 0;
+      tsAvailDataDirGB = 0;
+      return false;
+    } else {
+      tsTotalDataDirGB = (float)((double)info.f_blocks * (double)info.f_frsize / unit);
+      tsAvailDataDirGB = (float)((double)info.f_bavail * (double)info.f_frsize / unit);
+    }
   }
 
   if (statvfs(logDir, &info)) {