diff --git a/source/util/src/tarray.c b/source/util/src/tarray.c
index 4bd8294423..237edfdeb2 100644
--- a/source/util/src/tarray.c
+++ b/source/util/src/tarray.c
@@ -20,7 +20,10 @@
 // todo refactor API
 
 SArray* taosArrayInit(size_t size, size_t elemSize) {
-  assert(elemSize > 0);
+  if (elemSize == 0) {
+    terrno = TSDB_CODE_INVALID_PARA;
+    return NULL;
+  }
 
   if (size < TARRAY_MIN_SIZE) {
     size = TARRAY_MIN_SIZE;
@@ -96,8 +99,6 @@ void* taosArrayAddBatch(SArray* pArray, const void* pData, int32_t nEles) {
 }
 
 void taosArrayRemoveDuplicate(SArray* pArray, __compar_fn_t comparFn, void (*fp)(void*)) {
-  assert(pArray);
-
   size_t size = pArray->size;
   if (size <= 1) {
     return;
@@ -136,8 +137,6 @@ void taosArrayRemoveDuplicate(SArray* pArray, __compar_fn_t comparFn, void (*fp)
 }
 
 void taosArrayRemoveDuplicateP(SArray* pArray, __compar_fn_t comparFn, void (*fp)(void*)) {
-  assert(pArray);
-
   size_t size = pArray->size;
   if (size <= 1) {
     return;
@@ -195,11 +194,10 @@ void* taosArrayReserve(SArray* pArray, int32_t num) {
 }
 
 void* taosArrayPop(SArray* pArray) {
-  assert(pArray != NULL);
-
   if (pArray->size == 0) {
     return NULL;
   }
+
   pArray->size -= 1;
   return TARRAY_GET_ELEM(pArray, pArray->size);
 }
@@ -208,16 +206,21 @@ void* taosArrayGet(const SArray* pArray, size_t index) {
   if (NULL == pArray) {
     return NULL;
   }
-  assert(index < pArray->size);
+
+  if (index >= pArray->size) {
+    uError("index is out of range, current:%"PRIzu" max:%d", index, pArray->capacity);
+    return NULL;
+  }
+
   return TARRAY_GET_ELEM(pArray, index);
 }
 
 void* taosArrayGetP(const SArray* pArray, size_t index) {
-  assert(index < pArray->size);
-
-  void* d = TARRAY_GET_ELEM(pArray, index);
-
-  return *(void**)d;
+  void** p = taosArrayGet(pArray, index);
+  if (p == NULL) {
+    return NULL;
+  }
+  return *p;
 }
 
 void* taosArrayGetLast(const SArray* pArray) { return TARRAY_GET_ELEM(pArray, pArray->size - 1); }
@@ -296,9 +299,12 @@ void taosArrayRemove(SArray* pArray, size_t index) {
 }
 
 SArray* taosArrayFromList(const void* src, size_t size, size_t elemSize) {
-  assert(src != NULL && elemSize > 0);
-  SArray* pDst = taosArrayInit(size, elemSize);
+  if (elemSize <= 0) {
+    terrno = TSDB_CODE_INVALID_PARA;
+    return NULL;
+  }
 
+  SArray* pDst = taosArrayInit(size, elemSize);
   memcpy(pDst->pData, src, elemSize * size);
   pDst->size = size;
 
@@ -306,8 +312,6 @@ SArray* taosArrayFromList(const void* src, size_t size, size_t elemSize) {
 }
 
 SArray* taosArrayDup(const SArray* pSrc, __array_item_dup_fn_t fn) {
-  assert(pSrc != NULL);
-
   if (pSrc->size == 0) {  // empty array list
     return taosArrayInit(8, pSrc->elemSize);
   }
@@ -399,14 +403,10 @@ void taosArrayDestroyEx(SArray* pArray, FDelete fp) {
 }
 
 void taosArraySort(SArray* pArray, __compar_fn_t compar) {
-  ASSERT(pArray != NULL && compar != NULL);
   taosSort(pArray->pData, pArray->size, pArray->elemSize, compar);
 }
 
 void* taosArraySearch(const SArray* pArray, const void* key, __compar_fn_t comparFn, int32_t flags) {
-  assert(pArray != NULL && comparFn != NULL);
-  assert(key != NULL);
-
   return taosbsearch(key, pArray->pData, pArray->size, pArray->elemSize, comparFn, flags);
 }
 
diff --git a/source/util/src/tpagedbuf.c b/source/util/src/tpagedbuf.c
index 99f555e20d..d4103ab578 100644
--- a/source/util/src/tpagedbuf.c
+++ b/source/util/src/tpagedbuf.c
@@ -126,7 +126,11 @@ static void setPageNotInBuf(SPageInfo* pPageInfo) { pPageInfo->pData = NULL; }
 static FORCE_INLINE size_t getAllocPageSize(int32_t pageSize) { return pageSize + POINTER_BYTES + sizeof(SFilePage); }
 
 static char* doFlushBufPage(SDiskbasedBuf* pBuf, SPageInfo* pg) {
-  ASSERT(!pg->used && pg->pData != NULL);
+  if (pg->pData == NULL || pg->used) {
+    uError("invalid params in paged buffer process when flushing buf to disk, %s", pBuf->id);
+    terrno = TSDB_CODE_INVALID_PARA;
+    return NULL;
+  }
 
   int32_t size = pBuf->pageSize;
   char*   t = NULL;
@@ -333,7 +337,6 @@ int32_t createDiskbasedBuf(SDiskbasedBuf** pBuf, int32_t pagesize, int32_t inMem
   pPBuf->pageSize = pagesize;
   pPBuf->numOfPages = 0;  // all pages are in buffer in the first place
   pPBuf->totalBufSize = 0;
-  pPBuf->inMemPages = inMemBufSize / pagesize;  // maximum allowed pages, it is a soft limit.
   pPBuf->allocateId = -1;
   pPBuf->pFile = NULL;
   pPBuf->id = strdup(id);
@@ -342,13 +345,22 @@ int32_t createDiskbasedBuf(SDiskbasedBuf** pBuf, int32_t pagesize, int32_t inMem
   pPBuf->freePgList = tdListNew(POINTER_BYTES);
 
   // at least more than 2 pages must be in memory
-  ASSERT(inMemBufSize >= pagesize * 2);
+  if (inMemBufSize < pagesize * 2) {
+    inMemBufSize = pagesize * 2;
+  }
 
+  pPBuf->inMemPages = inMemBufSize / pagesize;  // maximum allowed pages, it is a soft limit.
   pPBuf->lruList = tdListNew(POINTER_BYTES);
+  if (pPBuf->lruList == NULL) {
+    goto _error;
+  }
 
   // init id hash table
   _hash_fn_t fn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT);
   pPBuf->pIdList = taosArrayInit(4, POINTER_BYTES);
+  if (pPBuf->pIdList == NULL) {
+    goto _error;
+  }
 
   pPBuf->assistBuf = taosMemoryMalloc(pPBuf->pageSize + 2);  // EXTRA BYTES
   if (pPBuf->assistBuf == NULL) {
@@ -503,7 +515,12 @@ void releaseBufPageInfo(SDiskbasedBuf* pBuf, SPageInfo* pi) {
   uDebug("page_releaseBufPageInfo pageId:%d, used:%d, offset:%" PRId64, pi->pageId, pi->used, pi->offset);
 #endif
 
-  if (ASSERTS(pi->pData != NULL, "pi->pData is NULL")) {
+  if (pi == NULL) {
+    return;
+  }
+
+  if (pi->pData == NULL) {
+    uError("pi->pData (page data) is null");
     return;
   }
 
@@ -514,7 +531,6 @@ void releaseBufPageInfo(SDiskbasedBuf* pBuf, SPageInfo* pi) {
 size_t getTotalBufSize(const SDiskbasedBuf* pBuf) { return (size_t)pBuf->totalBufSize; }
 
 SArray* getDataBufPagesIdList(SDiskbasedBuf* pBuf) {
-  ASSERT(pBuf != NULL);
   return pBuf->pIdList;
 }
 
@@ -592,7 +608,6 @@ SPageInfo* getLastPageInfo(SArray* pList) {
 }
 
 int32_t getPageId(const SPageInfo* pPgInfo) {
-  ASSERT(pPgInfo != NULL);
   return pPgInfo->pageId;
 }