diff --git a/source/dnode/mnode/impl/src/mndSubscribe.c b/source/dnode/mnode/impl/src/mndSubscribe.c
index 739b8bbf01..eea79c5335 100644
--- a/source/dnode/mnode/impl/src/mndSubscribe.c
+++ b/source/dnode/mnode/impl/src/mndSubscribe.c
@@ -550,7 +550,7 @@ static int32_t mndPersistRebResult(SMnode *pMnode, SRpcMsg *pMsg, const SMqRebOu
 
   // 6. execution
   if (mndTransPrepare(pMnode, pTrans) != 0) {
-    ASSERT(0);
+    mError("failed to prepare trans rebalance since %s", terrstr());
     goto REB_FAIL;
   }
 
diff --git a/source/dnode/vnode/src/tq/tqStreamStateSnap.c b/source/dnode/vnode/src/tq/tqStreamStateSnap.c
index b4a7ce7737..92e5f8df7a 100644
--- a/source/dnode/vnode/src/tq/tqStreamStateSnap.c
+++ b/source/dnode/vnode/src/tq/tqStreamStateSnap.c
@@ -167,7 +167,7 @@ int32_t tqSnapWriterClose(STqSnapWriter** ppWriter, int8_t rollback) {
   if (rollback) {
     ASSERT(0);
   } else {
-    code = tdbCommit(pWriter->pTq->pMetaStore, &pWriter->txn);
+    code = tdbCommit(pWriter->pTq->pMetaDB, &pWriter->txn);
     if (code) goto _err;
   }
 
diff --git a/source/libs/stream/src/streamUpdate.c b/source/libs/stream/src/streamUpdate.c
index 80410568e5..199892c241 100644
--- a/source/libs/stream/src/streamUpdate.c
+++ b/source/libs/stream/src/streamUpdate.c
@@ -175,11 +175,15 @@ void updateInfoFillBlockData(SUpdateInfo *pInfo, SSDataBlock *pBlock, int32_t pr
     maxTs = TMAX(maxTs, ts);
     SScalableBf *pSBf = getSBf(pInfo, ts);
     if (pSBf) {
-      tScalableBfPut(pSBf, &ts, sizeof(TSKEY));
+      SUpdateKey updateKey = {
+          .tbUid = tbUid,
+          .ts = ts,
+      };
+      tScalableBfPut(pSBf, &updateKey, sizeof(SUpdateKey));
     }
   }
   TSKEY *pMaxTs = taosHashGet(pInfo->pMap, &tbUid, sizeof(int64_t));
-  if (pMaxTs == NULL || *pMaxTs > tbUid) {
+  if (pMaxTs == NULL || *pMaxTs > maxTs) {
     taosHashPut(pInfo->pMap, &tbUid, sizeof(int64_t), &maxTs, sizeof(TSKEY));
   }
 }
diff --git a/source/libs/wal/src/walRef.c b/source/libs/wal/src/walRef.c
index 2c45fbbdaf..119d0575d8 100644
--- a/source/libs/wal/src/walRef.c
+++ b/source/libs/wal/src/walRef.c
@@ -42,6 +42,7 @@ void walCloseRef(SWal *pWal, int64_t refId) {
 
 int32_t walRefVer(SWalRef *pRef, int64_t ver) {
   SWal *pWal = pRef->pWal;
+  wDebug("vgId:%d, wal ref version %" PRId64 ", refId %" PRId64, pWal->cfg.vgId, ver, pRef->refId);
   if (pRef->refVer != ver) {
     taosThreadMutexLock(&pWal->mutex);
     if (ver < pWal->vers.firstVer || ver > pWal->vers.lastVer) {
diff --git a/source/libs/wal/src/walWrite.c b/source/libs/wal/src/walWrite.c
index d9aedff577..527ffa0056 100644
--- a/source/libs/wal/src/walWrite.c
+++ b/source/libs/wal/src/walWrite.c
@@ -257,6 +257,8 @@ static FORCE_INLINE int32_t walCheckAndRoll(SWal *pWal) {
 
 int32_t walBeginSnapshot(SWal *pWal, int64_t ver) {
   pWal->vers.verInSnapshotting = ver;
+  wDebug("vgId:%d, wal begin snapshot for version %" PRId64 ", first ver %" PRId64 ", last ver %" PRId64,
+         pWal->cfg.vgId, ver, pWal->vers.firstVer, pWal->vers.lastVer);
   // check file rolling
   if (pWal->cfg.retentionPeriod == 0) {
     taosThreadMutexLock(&pWal->mutex);
@@ -273,6 +275,10 @@ int32_t walEndSnapshot(SWal *pWal) {
   int32_t code = 0;
   taosThreadMutexLock(&pWal->mutex);
   int64_t ver = pWal->vers.verInSnapshotting;
+
+  wDebug("vgId:%d, wal end snapshot for version %" PRId64 ", first ver %" PRId64 ", last ver %" PRId64, pWal->cfg.vgId,
+         ver, pWal->vers.firstVer, pWal->vers.lastVer);
+
   if (ver == -1) {
     code = -1;
     goto END;
@@ -287,7 +293,8 @@ int32_t walEndSnapshot(SWal *pWal) {
     if (pIter == NULL) break;
     SWalRef *pRef = *(SWalRef **)pIter;
     if (pRef->refVer == -1) continue;
-    ver = TMIN(ver, pRef->refVer);
+    ver = TMIN(ver, pRef->refVer - 1);
+    wDebug("vgId:%d, wal found ref %" PRId64 ", refId %" PRId64, pWal->cfg.vgId, pRef->refVer, pRef->refId);
   }
 
   int          deleteCnt = 0;
@@ -298,7 +305,12 @@ int32_t walEndSnapshot(SWal *pWal) {
   SWalFileInfo *pInfo = taosArraySearch(pWal->fileInfoSet, &tmp, compareWalFileInfo, TD_LE);
   if (pInfo) {
     if (ver >= pInfo->lastVer) {
-      pInfo++;
+      pInfo--;
+    }
+    if (POINTER_DISTANCE(pInfo, pWal->fileInfoSet->pData) > 0) {
+      wDebug("vgId:%d, begin remove from %" PRId64, pWal->cfg.vgId, pInfo->firstVer);
+    } else {
+      wDebug("vgId:%d, no remove", pWal->cfg.vgId);
     }
     // iterate files, until the searched result
     for (SWalFileInfo *iter = pWal->fileInfoSet->pData; iter < pInfo; iter++) {
@@ -315,10 +327,12 @@ int32_t walEndSnapshot(SWal *pWal) {
     for (int i = 0; i < deleteCnt; i++) {
       pInfo = taosArrayGet(pWal->fileInfoSet, i);
       walBuildLogName(pWal, pInfo->firstVer, fnameStr);
+      wDebug("vgId:%d, remove file %s", pWal->cfg.vgId, fnameStr);
       if (taosRemoveFile(fnameStr) < 0) {
         goto UPDATE_META;
       }
       walBuildIdxName(pWal, pInfo->firstVer, fnameStr);
+      wDebug("vgId:%d, remove file %s", pWal->cfg.vgId, fnameStr);
       if (taosRemoveFile(fnameStr) < 0) {
         ASSERT(0);
       }
@@ -409,7 +423,7 @@ END:
 }
 
 static int32_t walWriteIndex(SWal *pWal, int64_t ver, int64_t offset) {
-  SWalIdxEntry entry = {.ver = ver, .offset = offset};
+  SWalIdxEntry  entry = {.ver = ver, .offset = offset};
   SWalFileInfo *pFileInfo = walGetCurFileInfo(pWal);
   ASSERT(pFileInfo != NULL);
   ASSERT(pFileInfo->firstVer >= 0);
@@ -429,7 +443,7 @@ static int32_t walWriteIndex(SWal *pWal, int64_t ver, int64_t offset) {
   if (endOffset < 0) {
     wFatal("vgId:%d, failed to seek end of idxfile due to %s. ver:%" PRId64 "", pWal->cfg.vgId, strerror(errno), ver);
   }
-  ASSERT(endOffset  == idxOffset + sizeof(SWalIdxEntry) && "Offset of idx entries misaligned");
+  ASSERT(endOffset == idxOffset + sizeof(SWalIdxEntry) && "Offset of idx entries misaligned");
   return 0;
 }
 
@@ -437,7 +451,7 @@ static FORCE_INLINE int32_t walWriteImpl(SWal *pWal, int64_t index, tmsg_t msgTy
                                          const void *body, int32_t bodyLen) {
   int64_t code = 0;
 
-  int64_t offset = walGetCurFileOffset(pWal);
+  int64_t       offset = walGetCurFileOffset(pWal);
   SWalFileInfo *pFileInfo = walGetCurFileInfo(pWal);
   ASSERT(pFileInfo != NULL);
 
diff --git a/source/util/src/tbloomfilter.c b/source/util/src/tbloomfilter.c
index b9c96dd606..84a78f3477 100644
--- a/source/util/src/tbloomfilter.c
+++ b/source/util/src/tbloomfilter.c
@@ -137,8 +137,10 @@ SBloomFilter *tBloomFilterDecode(SDecoder *pDecoder) {
     if (tDecodeU64(pDecoder, pUnits + i) < 0) goto _error;
   }
   if (tDecodeDouble(pDecoder, &pBF->errorRate) < 0) goto _error;
-  pBF->hashFn1 = taosGetDefaultHashFunction(TSDB_DATA_TYPE_TIMESTAMP);
-  pBF->hashFn2 = taosGetDefaultHashFunction(TSDB_DATA_TYPE_NCHAR);
+  /*pBF->hashFn1 = taosGetDefaultHashFunction(TSDB_DATA_TYPE_TIMESTAMP);*/
+  /*pBF->hashFn2 = taosGetDefaultHashFunction(TSDB_DATA_TYPE_NCHAR);*/
+  pBF->hashFn1 = taosFastHash;
+  pBF->hashFn2 = taosDJB2Hash;
   return pBF;
 
 _error: