diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable.c b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
index d40a73eb67af9efaa482fcdb799796adfb3c0f5c..1e8fbb48c79b6b55e72831c9245f3a419363f934 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMemTable.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
@@ -62,6 +62,16 @@ int tsdbMemTableCreate(STsdb *pTsdb, STsdbMemTable **ppMemTable) {
 void tsdbMemTableDestroy(STsdb *pTsdb, STsdbMemTable *pMemTable) {
   if (pMemTable) {
     taosHashCleanup(pMemTable->pHashIdx);
+    SSkipListIterator *pIter = tSkipListCreateIter(pMemTable->pSlIdx);
+    SSkipListNode     *pNode = NULL;
+    STbData           *pTbData = NULL;
+    for (;;) {
+      if (!tSkipListIterNext(pIter)) break;
+      pNode = tSkipListIterGet(pIter);
+      pTbData = (STbData *)pNode->pData;
+      tsdbFreeTbData(pTbData);
+    }
+    tSkipListDestroyIter(pIter);
     tSkipListDestroy(pMemTable->pSlIdx);
     taosMemoryFree(pMemTable);
   }
diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index cf7dd5010343fa86a3c322492771ce20083e226f..fffda68731cb15da91669c72913f776cb67496ca 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -114,6 +114,7 @@ int tdbBtreeOpen(int keyLen, int valLen, SPager *pPager, tdb_cmpr_fn_t kcmpr, SB
 
 int tdbBtreeClose(SBTree *pBt) {
   if (pBt) {
+    tdbFree(pBt->pBuf);
     tdbOsFree(pBt);
   }
   return 0;
diff --git a/source/libs/wal/src/walRead.c b/source/libs/wal/src/walRead.c
index 0cfe75bf333a0abaf0684fd05ce8a20adf811170..7dfe1b8989ba5886ed59452a32bf21ec36a12ac1 100644
--- a/source/libs/wal/src/walRead.c
+++ b/source/libs/wal/src/walRead.c
@@ -130,6 +130,7 @@ static int32_t walReadSeekVer(SWalReadHandle *pRead, int64_t ver) {
     }
   }
 
+  // code set inner
   if (walReadSeekFilePos(pRead, pRet->firstVer, ver) < 0) {
     return -1;
   }
@@ -249,16 +250,22 @@ int32_t walReadWithHandle(SWalReadHandle *pRead, int64_t ver) {
   // TODO: check wal life
   if (pRead->curVersion != ver) {
     if (walReadSeekVer(pRead, ver) < 0) {
+      terrno = TSDB_CODE_WAL_INVALID_VER;
+      wError("unexpected wal log version: % " PRId64 ", since seek error", ver);
       return -1;
     }
   }
 
-  if (!taosValidFile(pRead->pReadLogTFile)) {
-    return -1;
-  }
+  /*if (!taosValidFile(pRead->pReadLogTFile)) {*/
+  /*return -1;*/
+  /*}*/
 
   code = taosReadFile(pRead->pReadLogTFile, pRead->pHead, sizeof(SWalHead));
   if (code != sizeof(SWalHead)) {
+    if (code < 0)
+      terrno = TAOS_SYSTEM_ERROR(errno);
+    else
+      terrno = TSDB_CODE_WAL_FILE_CORRUPTED;
     return -1;
   }
 
diff --git a/source/libs/wal/src/walWrite.c b/source/libs/wal/src/walWrite.c
index da1c36dcc42ed3d1d3d454856cf4e5d3c1b2e8bc..2e439975849fd38adc7e77ed061af4219bc1fd73 100644
--- a/source/libs/wal/src/walWrite.c
+++ b/source/libs/wal/src/walWrite.c
@@ -225,6 +225,7 @@ int walRoll(SWal *pWal) {
     terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
   }
+  // terrno set inner
   code = walRollFileInfo(pWal);
   if (code != 0) {
     return -1;