diff --git a/src/util/inc/tcoding.h b/src/util/inc/tcoding.h
index 907c69bf016f863e0e1a785209b30ce32c9c89b6..9300094e353b2010ff047eff2c55bdac5597d293 100644
--- a/src/util/inc/tcoding.h
+++ b/src/util/inc/tcoding.h
@@ -196,14 +196,14 @@ static FORCE_INLINE void *taosDecodeFixedI64(void *buf, int64_t *value) {
 static FORCE_INLINE int taosEncodeVariantU16(void **buf, uint16_t value) {
   int i = 0;
   while (value >= ENCODE_LIMIT) {
-    if (buf != NULL) ((uint8_t *)(*buf))[i] = (value | ENCODE_LIMIT);
+    if (buf != NULL) ((uint8_t *)(*buf))[i] = (uint8_t)(value | ENCODE_LIMIT);
     value >>= 7;
     i++;
     ASSERT(i < 3);
   }
 
   if (buf != NULL) {
-    ((uint8_t *)(*buf))[i] = value;
+    ((uint8_t *)(*buf))[i] = (uint8_t)value;
     *buf = POINTER_SHIFT(*buf, i + 1);
   }
 
@@ -292,14 +292,14 @@ static FORCE_INLINE void *taosDecodeVariantI32(void *buf, int32_t *value) {
 static FORCE_INLINE int taosEncodeVariantU64(void **buf, uint64_t value) {
   int i = 0;
   while (value >= ENCODE_LIMIT) {
-    if (buf != NULL) ((uint8_t *)(*buf))[i] = (value | ENCODE_LIMIT);
+    if (buf != NULL) ((uint8_t *)(*buf))[i] = (uint8_t)(value | ENCODE_LIMIT);
     value >>= 7;
     i++;
     ASSERT(i < 10);
   }
 
   if (buf != NULL) {
-    ((uint8_t *)(*buf))[i] = value;
+    ((uint8_t *)(*buf))[i] = (uint8_t)value;
     *buf = POINTER_SHIFT(*buf, i + 1);
   }
 
@@ -346,7 +346,7 @@ static FORCE_INLINE int taosEncodeString(void **buf, char *value) {
     memcpy(*buf, value, size);
     *buf = POINTER_SHIFT(*buf, size);
   }
-  tlen += size;
+  tlen += (int)size;
 
   return tlen;
 }
diff --git a/src/util/src/tkvstore.c b/src/util/src/tkvstore.c
index edcf9d45f2045bfe7fe8a745b405463cfd4416dc..3090b7e30bcc145c7f004f05db4be61059590edc 100644
--- a/src/util/src/tkvstore.c
+++ b/src/util/src/tkvstore.c
@@ -286,7 +286,7 @@ int tdDropKVStoreRecord(SKVStore *pStore, uint64_t uid) {
     return -1;
   }
 
-  pStore->info.magic = taosCalcChecksum(pStore->info.magic, (uint8_t *)buf, POINTER_DISTANCE(pBuf, buf));
+  pStore->info.magic = taosCalcChecksum(pStore->info.magic, (uint8_t *)buf, (uint32_t)POINTER_DISTANCE(pBuf, buf));
   pStore->info.size += POINTER_DISTANCE(pBuf, buf);
   pStore->info.nDels++;
   pStore->info.nRecords--;
@@ -485,7 +485,7 @@ static void *tdDecodeKVRecord(void *buf, SKVRecord *pRecord) {
 static int tdRestoreKVStore(SKVStore *pStore) {
   char                  tbuf[128] = "\0";
   void *                buf = NULL;
-  int                   maxBufSize = 0;
+  int64_t               maxBufSize = 0;
   SKVRecord             rInfo = {0};
   SHashMutableIterator *pIter = NULL;
 
@@ -564,7 +564,7 @@ static int tdRestoreKVStore(SKVStore *pStore) {
     }
 
     if (pStore->iFunc) {
-      if ((*pStore->iFunc)(pStore->appH, buf, pRecord->size) < 0) {
+      if ((*pStore->iFunc)(pStore->appH, buf, (int)pRecord->size) < 0) {
         uError("failed to restore record uid %" PRIu64 " in kv store %s at offset %" PRId64 " size %" PRId64
                " since %s",
                pRecord->uid, pStore->fname, pRecord->offset, pRecord->size, tstrerror(terrno));