fix mem problem

source/libs/stream/src/streamBackendRocksdb.c

@@ -576,6 +576,7 @@ int32_t decodeValueFunc(void* value, int32_t vlen, int64_t* ttl, char** dest) {
   p = taosDecodeFixedI32(p, &key.len);
   if (vlen != sizeof(int64_t) + sizeof(int32_t) + key.len) {
     if (dest != NULL) *dest = NULL;
+    qError("vlen: %d, read len: %d", vlen, key.len);
     return -1;
   }
 
@@ -1034,7 +1035,7 @@ rocksdb_iterator_t* streamStateIterCreate(SStreamState* pState, const char* cfNa
       qError("streamState str: %s failed to write to %s, err: %s", toString, funcname, err);                           \
       code = -1;                                                                                                       \
     } else {                                                                                                           \
-      qTrace("streamState str:%s succ to write to %s, valLen:%d", toString, funcname, vLen);             \
+      qTrace("streamState str:%s succ to write to %s, rowValLen:%d, ttlValLen:%d", toString, funcname, vLen, ttlVLen); \
     }                                                                                                                  \
     taosMemoryFree(ttlV);                                                                                              \
   } while (0);
@@ -1071,17 +1072,17 @@ rocksdb_iterator_t* streamStateIterCreate(SStreamState* pState, const char* cfNa
       code = -1;                                                                                                       \
     } else {                                                                                                           \
       char*   p = NULL;                                                                                                \
-      int32_t len = ginitDict[i].deValueFunc(val, len, NULL, (char**)pVal);                                            \
-      if (len <= 0) {                                                                                                  \
+      int32_t tlen = ginitDict[i].deValueFunc(val, len, NULL, (char**)pVal);                                           \
+      if (tlen <= 0) {                                                                                                 \
         qError("streamState str: %s failed to read from %s_%s, err: already ttl ", toString, pState->pTdbState->idstr, \
                funcname);                                                                                              \
         code = -1;                                                                                                     \
       } else {                                                                                                         \
         qTrace("streamState str: %s succ to read from %s_%s, valLen:%d", toString, pState->pTdbState->idstr, funcname, \
-               len);                                                                                                   \
+               tlen);                                                                                                  \
       }                                                                                                                \
       taosMemoryFree(val);                                                                                             \
-      if (vLen != NULL) *vLen = len;                                                                                   \
+      if (vLen != NULL) *vLen = tlen;                                                                                  \
     }                                                                                                                  \
     if (code == 0)                                                                                                     \
       qDebug("streamState str: %s succ to read from %s_%s", toString, pState->pTdbState->idstr, funcname);             \