diff --git a/src/inc/tstatus.h b/src/inc/tstatus.h
index 0f9bea5ae5b57f4f007c18af43b6599702edf98b..18900d3b29f9825d10d8f02b643b9d484ab9ef87 100644
--- a/src/inc/tstatus.h
+++ b/src/inc/tstatus.h
@@ -73,23 +73,11 @@ enum _TSDB_VG_LB_STATUS {
   TSDB_VG_LB_STATUS_UPDATE
 };
 
-enum _TSDB_LB_TYPE {
-  TSDB_LB_TYPE_SCHEDULE,
-  TSDB_LB_TYPE_SOON,
-};
-
-enum _TSDB_LB_REASON {
-  TSDB_LB_REASON_PERIOD,
-  TSDB_LB_REASON_EVENT,
-};
-
 const char* taosGetVnodeStatusStr(int vnodeStatus);
 const char* taosGetVnodeSyncStatusStr(int vnodeSyncStatus);
 const char* taosGetVnodeDropStatusStr(int dropping);
 const char* taosGetDnodeStatusStr(int dnodeStatus);
 const char* taosGetDnodeLbStatusStr(int dnodeBalanceStatus);
-const char* taosGetBalanceTypeStr(int type);
-const char* taosBalanceReasonStr(int reason);
 const char* taosGetVgroupLbStatusStr(int vglbStatus);
 
 #ifdef __cplusplus
diff --git a/src/os/linux/src/tlinux.c b/src/os/linux/src/tlinux.c
index 6a7225b47693f9c76c25fcdd3149d28381df77cf..c4d9425b4087fc3b78ef5b9d8fc3896653083e34 100644
--- a/src/os/linux/src/tlinux.c
+++ b/src/os/linux/src/tlinux.c
@@ -287,8 +287,10 @@ ssize_t tsendfile(int dfd, int sfd, off_t *offset, size_t size) {
   ssize_t sentbytes;
 
   while (leftbytes > 0) {
-    // TODO : Think to check if file is larger than 1GB
-    if (leftbytes > 1000000000) leftbytes = 1000000000;
+    /*
+     * TODO : Think to check if file is larger than 1GB
+     */
+    //if (leftbytes > 1000000000) leftbytes = 1000000000;
     sentbytes = sendfile(dfd, sfd, offset, leftbytes);
     if (sentbytes == -1) {
       if (errno == EINTR) {
diff --git a/src/util/src/tstatus.c b/src/util/src/tstatus.c
index 4e3141b13bd60c86f60cba3e6632f534f50cdeee..f38655ac454848c498d942b8744abd3002b9a08f 100644
--- a/src/util/src/tstatus.c
+++ b/src/util/src/tstatus.c
@@ -73,20 +73,3 @@ const char* taosGetVgroupLbStatusStr(int vglbStatus) {
     default:                        return "undefined";
   }
 }
-
-const char* taosGetBalanceTypeStr(int type) {
-  switch (type) {
-    case TSDB_LB_TYPE_SCHEDULE: return "schedule";
-    case TSDB_LB_TYPE_SOON:     return "soon";
-    default:                    return "undefined";
-  }
-}
-
-const char* taosBalanceReasonStr(int reason) {
-  switch (reason) {
-    case TSDB_LB_REASON_PERIOD: return "period";
-    case TSDB_LB_REASON_EVENT:  return "event";
-    default:                    return "undefined";
-  }
-}
-
diff --git a/src/util/src/tutil.c b/src/util/src/tutil.c
index 8413294bcceee6690204422c8d8cd8e0316ef65b..e0dcb0aa3f22c8eadd4f30c75c9fa6e7bced1727 100644
--- a/src/util/src/tutil.c
+++ b/src/util/src/tutil.c
@@ -490,7 +490,7 @@ char *taosIpStr(uint32_t ipInt) {
   static int ipStrIndex = 0;
 
   char *ipStr = ipStrArray[(ipStrIndex++) % 3];
-  sprintf(ipStr, "0x%x:%d.%d.%d.%d", ipInt, ipInt & 0xFF, (ipInt >> 8) & 0xFF, (ipInt >> 16) & 0xFF, ipInt >> 24);
+  sprintf(ipStr, "0x%x:%u.%u.%u.%u", ipInt, ipInt & 0xFF, (ipInt >> 8) & 0xFF, (ipInt >> 16) & 0xFF, (uint8_t)(ipInt >> 24));
   return ipStr;
 }