diff --git a/source/dnode/vnode/src/sma/smaFS.c b/source/dnode/vnode/src/sma/smaFS.c
index 3c60a24d3d..a315e1ccb3 100644
--- a/source/dnode/vnode/src/sma/smaFS.c
+++ b/source/dnode/vnode/src/sma/smaFS.c
@@ -243,7 +243,7 @@ static int32_t tdQTaskInfCmprFn1(const void *p1, const void *p2) {
   }
 
   if (q1->version < q2->version) {
-    return -1;
+    return -2;
   } else if (q1->version > q2->version) {
     return 1;
   }
@@ -254,6 +254,7 @@ static int32_t tdQTaskInfCmprFn1(const void *p1, const void *p2) {
 static int32_t tdRSmaFSApplyChange(SSma *pSma, SRSmaFS *pFSNew) {
   int32_t    code = 0;
   int32_t    lino = 0;
+  int32_t    nRef = 0;
   SVnode    *pVnode = pSma->pVnode;
   SSmaEnv   *pEnv = SMA_RSMA_ENV(pSma);
   SRSmaStat *pStat = (SRSmaStat *)SMA_ENV_STAT(pEnv);
@@ -273,22 +274,42 @@ static int32_t tdRSmaFSApplyChange(SSma *pSma, SRSmaFS *pFSNew) {
       idx = taosArrayGetSize(pFSOld->aQTaskInf);
       pQTaskFNew->nRef = 1;
     } else {
-      SQTaskFile *pTaskF = (SQTaskFile *)taosArrayGet(pFSOld->aQTaskInf, idx);
-      int32_t     c = tdQTaskInfCmprFn1(pQTaskFNew, pTaskF);
-      if (c == 0) {
+      SQTaskFile *pTaskF = TARRAY_GET_ELEM(pFSOld->aQTaskInf, idx);
+      int32_t     c1 = tdQTaskInfCmprFn1(pQTaskFNew, pTaskF);
+      if (c1 == 0) {
         // utilize the item in pFSOld->qQTaskInf, instead of pFSNew
         continue;
-      } else if (c < 0) {
+      } else if (c1 < 0) {
         // NOTHING TODO
       } else {
-        ASSERT(0);
-        continue;
+        code = TSDB_CODE_RSMA_FS_UPDATE;
+        TSDB_CHECK_CODE(code, lino, _exit);
       }
     }
 
     if (taosArrayInsert(pFSOld->aQTaskInf, idx, pQTaskFNew) == NULL) {
       code = TSDB_CODE_OUT_OF_MEMORY;
-      goto _exit;
+      TSDB_CHECK_CODE(code, lino, _exit);
+    }
+
+    // remove previous version
+    while (--idx >= 0) {
+      SQTaskFile *preTaskF = TARRAY_GET_ELEM(pFSOld->aQTaskInf, idx);
+      int32_t     c2 = tdQTaskInfCmprFn1(preTaskF, pQTaskFNew);
+      if (c2 == 0) {
+        code = TSDB_CODE_RSMA_FS_UPDATE;
+        TSDB_CHECK_CODE(code, lino, _exit);
+      } else if (c2 != -2) {
+        break;
+      }
+
+      nRef = atomic_sub_fetch_32(&preTaskF->nRef, 1);
+      if (nRef <= 0) {
+        tdRSmaQTaskInfoGetFullName(TD_VID(pVnode), preTaskF->suid, preTaskF->level, preTaskF->version,
+                                   tfsGetPrimaryPath(pVnode->pTfs), fname);
+        (void)taosRemoveFile(fname);
+        taosArrayRemove(pFSOld->aQTaskInf, idx);
+      }
     }
   }
 
@@ -532,7 +553,7 @@ int32_t tdRSmaFSCommit(SSma *pSma) {
     TSDB_CHECK_CODE(code, lino, _exit);
   }
 
-  // Load the new FS
+  // load the new FS
   code = tdRSmaFSCreate(&fs, 1);
   TSDB_CHECK_CODE(code, lino, _exit);
 
@@ -558,13 +579,11 @@ int32_t tdRSmaFSFinishCommit(SSma *pSma) {
   SRSmaStat *pStat = (SRSmaStat *)SMA_ENV_STAT(pSmaEnv);
 
   taosWLockLatch(RSMA_FS_LOCK(pStat));
-  if ((code = tdRSmaFSCommit(pSma)) < 0) {
-    taosWUnLockLatch(RSMA_FS_LOCK(pStat));
-    TSDB_CHECK_CODE(code, lino, _exit);
-  }
-  taosWUnLockLatch(RSMA_FS_LOCK(pStat));
+  code = tdRSmaFSCommit(pSma);
+  TSDB_CHECK_CODE(code, lino, _exit);
 
 _exit:
+  taosWUnLockLatch(RSMA_FS_LOCK(pStat));
   if (code) {
     smaError("vgId:%d, %s failed at line %d since %s", SMA_VID(pSma), __func__, lino, tstrerror(code));
   } else {
@@ -723,7 +742,7 @@ int32_t tdRSmaFSRef(SSma *pSma, SRSmaFS *pFS) {
   for (int32_t i = 0; i < size; ++i) {
     SQTaskFile *qTaskF = (SQTaskFile *)taosArrayGet(qFS->aQTaskInf, i);
     nRef = atomic_fetch_add_32(&qTaskF->nRef, 1);
-    if(nRef <= 0) {
+    if (nRef <= 0) {
       code = TSDB_CODE_RSMA_FS_REF;
       TSDB_CHECK_CODE(code, lino, _exit);
     }