diff --git a/source/common/src/cos.c b/source/common/src/cos.c
index a7e69ddc4c..3c72e21a4f 100644
--- a/source/common/src/cos.c
+++ b/source/common/src/cos.c
@@ -261,7 +261,7 @@ static void responseCompleteCallback(S3Status status, const S3ErrorDetails *erro
       for (int i = 0; i < error->extraDetailsCount; i++) {
         if (elen - len > 0) {
           len += tsnprintf(&(cbd->err_msg[len]), elen - len, "    %s: %s\n", error->extraDetails[i].name,
-                          error->extraDetails[i].value);
+                           error->extraDetails[i].value);
         }
       }
     }
@@ -742,9 +742,9 @@ upload:
       TAOS_CHECK_GOTO(TAOS_SYSTEM_ERROR(EIO), &lino, _exit);
     }
     n = tsnprintf(buf, sizeof(buf),
-                 "<Part><PartNumber>%d</PartNumber>"
-                 "<ETag>%s</ETag></Part>",
-                 i + 1, manager.etags[i]);
+                  "<Part><PartNumber>%d</PartNumber>"
+                  "<ETag>%s</ETag></Part>",
+                  i + 1, manager.etags[i]);
     size += growbuffer_append(&(manager.gb), buf, n);
   }
   size += growbuffer_append(&(manager.gb), "</CompleteMultipartUpload>", strlen("</CompleteMultipartUpload>"));
@@ -908,10 +908,10 @@ upload:
   int  n;
   for (int i = 0; i < cp.part_num; ++i) {
     n = tsnprintf(buf, sizeof(buf),
-                 "<Part><PartNumber>%d</PartNumber>"
-                 "<ETag>%s</ETag></Part>",
-                 // i + 1, manager.etags[i]);
-                 cp.parts[i].index + 1, cp.parts[i].etag);
+                  "<Part><PartNumber>%d</PartNumber>"
+                  "<ETag>%s</ETag></Part>",
+                  // i + 1, manager.etags[i]);
+                  cp.parts[i].index + 1, cp.parts[i].etag);
     size += growbuffer_append(&(manager.gb), buf, n);
   }
   size += growbuffer_append(&(manager.gb), "</CompleteMultipartUpload>", strlen("</CompleteMultipartUpload>"));
@@ -1916,7 +1916,8 @@ void s3EvictCache(const char *path, long object_size) {
 }
 
 long s3Size(const char *object_name) {
-  long size = 0;
+  int32_t code = 0;
+  long    size = 0;
 
   cos_pool_t            *p = NULL;
   int                    is_cname = 0;
@@ -1941,7 +1942,10 @@ long s3Size(const char *object_name) {
   if (cos_status_is_ok(s)) {
     char *content_length_str = (char *)apr_table_get(resp_headers, COS_CONTENT_LENGTH);
     if (content_length_str != NULL) {
-      size = atol(content_length_str);
+      code = taosStr2Int64(content_length_str, &size);
+      if (code != 0) {
+        cos_warn_log("parse content length failed since %s\n", tstrerror(code));
+      }
     }
     cos_warn_log("head object succeeded: %ld\n", size);
   } else {
diff --git a/source/libs/monitorfw/src/taos_monitor_util.c b/source/libs/monitorfw/src/taos_monitor_util.c
index b0eff27507..1240526d48 100644
--- a/source/libs/monitorfw/src/taos_monitor_util.c
+++ b/source/libs/monitorfw/src/taos_monitor_util.c
@@ -41,10 +41,11 @@ void taos_monitor_split_str_metric(char** arr, taos_metric_t* metric, const char
   memset(name, 0, size + 1);
   memcpy(name, metric->name, size);
 
-  char* s = strtok(name, del);
+  char* saveptr;
+  char* s = strtok_r(name, del, &saveptr);
   while (s != NULL) {
     *arr++ = s;
-    s = strtok(NULL, del);
+    s = strtok_r(NULL, del, &saveptr);
   }
 
   *buf = name;