diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index 5250d2947e..3888ec07a4 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -1013,18 +1013,18 @@ static void doInitGlobalConfig(void) {
   cfg.ptr = &tsNumOfLogLines;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_LOG | TSDB_CFG_CTYPE_B_CLIENT;
-  cfg.minValue = 10000;
+  cfg.minValue = 1000;
   cfg.maxValue = 2000000000;
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
   cfg.option = "logKeepDays";
-  cfg.ptr = &tsNumOfLogLines;
+  cfg.ptr = &tsLogKeepDays;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_LOG | TSDB_CFG_CTYPE_B_CLIENT;
   cfg.minValue = 0;
-  cfg.maxValue = 3650;
+  cfg.maxValue = 36500;
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
diff --git a/src/os/src/detail/osDir.c b/src/os/src/detail/osDir.c
index 2daee85762..ba0507f387 100644
--- a/src/os/src/detail/osDir.c
+++ b/src/os/src/detail/osDir.c
@@ -54,9 +54,9 @@ void taosRename(char* oldName, char *newName) {
   // if newName in not empty, rename return fail. 
   // the newName must be empty or does not exist
   if (rename(oldName, newName)) {
-    uError("%s is modify to %s fail, reason:%s", oldName, newName, strerror(errno));
+    uError("failed to rename file %s to %s, reason:%s", oldName, newName, strerror(errno));
   } else {
-    uInfo("%s is modify to %s success!", oldName, newName);
+    uInfo("successfully to rename file %s to %s", oldName, newName);
   }
 }
 
@@ -64,7 +64,7 @@ void taosRemoveOldLogFiles(char *rootDir, int32_t keepDays) {
   DIR *dir = opendir(rootDir);
   if (dir == NULL) return;
 
-  int64_t ms = taosGetTimestampMs();
+  int64_t sec = taosGetTimestampSec();
   struct dirent *de = NULL;
 
   while ((de = readdir(dir)) != NULL) {
@@ -80,20 +80,19 @@ void taosRemoveOldLogFiles(char *rootDir, int32_t keepDays) {
       //   continue;
       // }
       int32_t len = strlen(filename);
-      int64_t fileMs = 0;
-      for (int i = len - 1; i >= 0; ++i) {
+      int64_t fileSec = 0;
+      for (int i = len - 1; i >= 0; i--) {
         if (filename[i] == '.') {
-          fileMs = atoll(filename + i + 1);
+          fileSec = atoll(filename + i + 1);
           break;
         }
       }
 
-      if (fileMs <= 0) continue;
-      int32_t days = (fileMs - ms) / 86400 + 1;
+      if (fileSec <= 100) continue;
+      int32_t days = ABS(sec - fileSec) / 86400 + 1;
       if (days > keepDays) {
         (void)remove(filename);
         uInfo("file:%s is removed, days:%d keepDays:%d", filename, days, keepDays);
-
       } else {
         uTrace("file:%s won't be removed, days:%d keepDays:%d", filename, days, keepDays);
       }
diff --git a/src/util/src/tlog.c b/src/util/src/tlog.c
index b027304437..a8587de767 100644
--- a/src/util/src/tlog.c
+++ b/src/util/src/tlog.c
@@ -79,6 +79,7 @@ static int32_t   taosPushLogBuffer(SLogBuff *tLogBuff, char *msg, int32_t msgLen
 static SLogBuff *taosLogBuffNew(int32_t bufSize);
 static void      taosCloseLogByFd(int32_t oldFd);
 static int32_t   taosOpenLogFile(char *fn, int32_t maxLines, int32_t maxFileNum);
+extern void      taosPrintGlobalCfg();
 
 static int32_t taosStartLog() {
   pthread_attr_t threadAttr;
@@ -140,11 +141,10 @@ static void taosUnLockFile(int32_t fd) {
 static void taosKeepOldLog(char *oldName) {
   if (tsLogKeepDays <= 0) return;
 
-  int64_t ms = taosGetTimestampMs();
+  int64_t fileSec = taosGetTimestampSec();
   char    fileName[LOG_FILE_NAME_LEN + 20];
-  snprintf(fileName, LOG_FILE_NAME_LEN + 20, "%s.%" PRId64, tsLogObj.logName, ms);
+  snprintf(fileName, LOG_FILE_NAME_LEN + 20, "%s.%" PRId64, tsLogObj.logName, fileSec);
 
-  uInfo("rename log file %s to %s", oldName, fileName);
   taosRename(oldName, fileName);
   taosRemoveOldLogFiles(tsLogDir, tsLogKeepDays);
 }
@@ -174,8 +174,10 @@ static void *taosThreadToOpenNewFile(void *param) {
   tsLogObj.lines = 0;
   tsLogObj.openInProgress = 0;
   taosCloseLogByFd(oldFd);
-  uInfo("new log file is opened!!!");
-
+  
+  uInfo("   new log file:%d is opened", tsLogObj.flag);
+  uInfo("==================================");
+  taosPrintGlobalCfg();
   taosKeepOldLog(keepName);
 
   return NULL;
@@ -282,20 +284,23 @@ static int32_t taosOpenLogFile(char *fn, int32_t maxLines, int32_t maxFileNum) {
     strcat(name, ".0");
   }
 
+  if (strlen(fn) < LOG_FILE_NAME_LEN + 50 - 2) {
+    strcpy(name, fn);
+    strcat(name, ".1");
+  }
+
+  bool log0Exist = stat(name, &logstat0) >= 0;
+  bool log1Exist = stat(name, &logstat1) >= 0;
+  
   // if none of the log files exist, open 0, if both exists, open the old one
-  if (stat(name, &logstat0) < 0) {
+  if (!log0Exist && !log1Exist) {
     tsLogObj.flag = 0;
+  } else if (!log1Exist) {
+    tsLogObj.flag = 0;
+  } else if (!log0Exist) {
+    tsLogObj.flag = 1;
   } else {
-    if (strlen(fn) < LOG_FILE_NAME_LEN + 50 - 2) {
-      strcpy(name, fn);
-      strcat(name, ".1");
-    }
-    
-    if (stat(name, &logstat1) < 0) {
-      tsLogObj.flag = 1;
-    } else {
-      tsLogObj.flag = (logstat0.st_mtime > logstat1.st_mtime) ? 0 : 1;
-    }
+    tsLogObj.flag = (logstat0.st_mtime > logstat1.st_mtime) ? 0 : 1;
   }
 
   char fileName[LOG_FILE_NAME_LEN + 50] = "\0";