diff --git a/source/libs/function/src/tudf.c b/source/libs/function/src/tudf.c
index 4322705c130ef2bb3fd803247f032d4a71810d12..5c6209dc4d554b808b9b3afc25669028991a058b 100644
--- a/source/libs/function/src/tudf.c
+++ b/source/libs/function/src/tudf.c
@@ -1386,7 +1386,7 @@ int32_t cleanUpUdfs() {
       if (handle != NULL && ((SUdfcUvSession*)handle)->udfUvPipe != NULL) {
         taosArrayPush(udfStubs, stub);
       } else {
-        fnInfo("invalid handle for %s, refCount: %d, last ref time: %"PRId64". remove it from cache",
+        fnInfo("udf invalid handle for %s, refCount: %d, last ref time: %"PRId64". remove it from cache",
                stub->udfName, stub->refCount, stub->lastRefTime);
       }
     }
@@ -1602,6 +1602,7 @@ bool udfAggInit(struct SqlFunctionCtx *pCtx, struct SResultRowEntryInfo* pResult
   SUdfInterBuf buf = {0};
   if ((udfCode = doCallUdfAggInit(handle, &buf)) != 0) {
     fnError("udfAggInit error. step doCallUdfAggInit. udf code: %d", udfCode);
+    releaseUdfFuncHandle(pCtx->udfName);
     return false;
   }
   udfRes->interResNum = buf.numOfResult;
@@ -1609,6 +1610,7 @@ bool udfAggInit(struct SqlFunctionCtx *pCtx, struct SResultRowEntryInfo* pResult
     memcpy(udfRes->interResBuf, buf.buf, buf.bufLen);
   } else {
     fnError("udfc inter buf size %d is greater than function bufSize %d", buf.bufLen, session->bufSize);
+    releaseUdfFuncHandle(pCtx->udfName);
     return false;
   }
   freeUdfInterBuf(&buf);
@@ -1674,6 +1676,9 @@ int32_t udfAggProcess(struct SqlFunctionCtx *pCtx) {
   blockDataDestroy(inputBlock);
   taosArrayDestroy(tempBlock.pDataBlock);
 
+  if (udfCode != 0) {
+    releaseUdfFuncHandle(pCtx->udfName);
+  }
   freeUdfInterBuf(&newState);
   return udfCode;
 }