diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index ab940b2107fc1ddd197d4b6ac4d3a40fe217b4eb..180be0ff6e56b392f1fc7531627b0e33c68336dd 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -322,6 +322,7 @@ int32_t tsdbCacheLastArray2Row(SArray *pLastArray, STSRow **ppRow, STSchema *pSc
 
 // structs =======================
 struct STsdbFS {
+  int64_t   version;
   SDelFile *pDelFile;
   SArray   *aDFileSet;  // SArray<SDFileSet>
 };
@@ -575,9 +576,6 @@ struct SDFileSet {
   SSttFile  *aSttF[TSDB_MAX_STT_TRIGGER];
 };
 
-#define SET_DFSET_EXPIRED(d) ((d)->diskId.id = -1)
-#define IS_DFSET_EXPIRED(d)  ((d)->diskId.id == -1)
-
 struct SRowIter {
   TSDBROW  *pRow;
   STSchema *pTSchema;
diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index 6fa8d503b73933202d2452efe4acde6127ca6ae3..447efcebf9e9e276ce52edb7662d292da6ff438d 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -988,21 +988,33 @@ static int32_t tsdbEndCommit(SCommitter *pCommitter, int32_t eno) {
   int32_t    code = 0;
   STsdb     *pTsdb = pCommitter->pTsdb;
   SMemTable *pMemTable = pTsdb->imem;
-  bool       inTrim = atomic_load_8(&pTsdb->pVnode->trimDbH.state);
+  STsdbFS    fsLatest = {0};
 
   ASSERT(eno == 0);
 
-  if (inTrim) taosThreadRwlockWrlock(&pTsdb->rwLock);
+  // lock
+  taosThreadRwlockWrlock(&pTsdb->rwLock);
+  
+  ASSERT(pCommitter->fs.version <= pTsdb->fs.version);
+
+  if (pCommitter->fs.version < pTsdb->fs.version) {
+    if ((code = tsdbFSCopy(pTsdb, &fsLatest))) {
+      taosThreadRwlockUnlock(&pTsdb->rwLock);
+      goto _err;
+    }
+
+    if ((code = tsdbFSUpdDel(pTsdb, &pCommitter->fs, &fsLatest, pTsdb->trimHdl.minCommitFid - 1))) {
+      taosThreadRwlockUnlock(&pTsdb->rwLock);
+      goto _err;
+    }
+  }
 
   code = tsdbFSCommit1(pTsdb, &pCommitter->fs);
   if (code) {
-    if (inTrim) taosThreadRwlockUnlock(&pTsdb->rwLock);
+    taosThreadRwlockUnlock(&pTsdb->rwLock);
     goto _err;
   }
 
-  // lock
-  if (!inTrim) taosThreadRwlockWrlock(&pTsdb->rwLock);
-
   // commit or rollback
   code = tsdbFSCommit2(pTsdb, &pCommitter->fs);
   if (code) {
diff --git a/source/dnode/vnode/src/tsdb/tsdbFS.c b/source/dnode/vnode/src/tsdb/tsdbFS.c
index d02cbdc089321f730f6e4c2f9384ba44b9056c2d..ef4f6930beba13375ca1e53787ab215a6094ae78 100644
--- a/source/dnode/vnode/src/tsdb/tsdbFS.c
+++ b/source/dnode/vnode/src/tsdb/tsdbFS.c
@@ -419,6 +419,7 @@ int32_t tsdbFSOpen(STsdb *pTsdb) {
   int32_t code = 0;
 
   // open handle
+  pTsdb->fs.version = 0;
   pTsdb->fs.pDelFile = NULL;
   pTsdb->fs.aDFileSet = taosArrayInit(0, sizeof(SDFileSet));
   if (pTsdb->fs.aDFileSet == NULL) {
@@ -534,6 +535,7 @@ int32_t tsdbFSClose(STsdb *pTsdb) {
 int32_t tsdbFSCopy(STsdb *pTsdb, STsdbFS *pFS) {
   int32_t code = 0;
 
+  pFS->version = pTsdb->fs.version;
   pFS->pDelFile = NULL;
   pFS->aDFileSet = taosArrayInit(taosArrayGetSize(pTsdb->fs.aDFileSet), sizeof(SDFileSet));
   if (pFS->aDFileSet == NULL) {
@@ -746,12 +748,12 @@ int32_t tsdbFSUpdDel(STsdb *pTsdb, STsdbFS *pFS, STsdbFS *pFSNew, int32_t maxFid
 
     if (pSetOld && pSetNew) {
       if (pSetOld->fid == pSetNew->fid) {
-        if (IS_DFSET_EXPIRED(pSetNew)) goto _remove_old;
         goto _merge_migrate;
-      } else if (pSetOld->fid < pSetNew->fid) {
-        ++iOld;
+      } else if (pSetOld->fid > pSetNew->fid) {
+        goto _remove_old;
       } else {
-        ++iNew;
+        ++iOld;
+        ASSERT(0);
       }
       continue;
     } else {
@@ -794,8 +796,8 @@ int32_t tsdbFSUpdDel(STsdb *pTsdb, STsdbFS *pFS, STsdbFS *pFSNew, int32_t maxFid
       pSetOld->diskId = pSetNew->diskId;
     }
 
-    iOld++;
-    iNew++;
+    ++iOld;
+    ++iNew;
     continue;
 
   _remove_old:
@@ -806,7 +808,7 @@ int32_t tsdbFSUpdDel(STsdb *pTsdb, STsdbFS *pFS, STsdbFS *pFSNew, int32_t maxFid
     }
     taosMemoryFree(pSetOld->pSmaF);
     taosArrayRemove(pFS->aDFileSet, iOld);
-    iNew++;
+    ++iNew;
     continue;
   }
 
@@ -850,6 +852,8 @@ int32_t tsdbFSCommit2(STsdb *pTsdb, STsdbFS *pFSNew) {
   int32_t nRef;
   char    fname[TSDB_FILENAME_LEN];
 
+  ++pTsdb->fs.version;
+  
   // del
   if (pFSNew->pDelFile) {
     SDelFile *pDelFile = pTsdb->fs.pDelFile;
diff --git a/source/dnode/vnode/src/tsdb/tsdbRetention.c b/source/dnode/vnode/src/tsdb/tsdbRetention.c
index 971b950975e3a5db997eb116d48e7889b7ad696d..fbe16b6a4255a8378f88efe7839d9eedfcf68aa0 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRetention.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRetention.c
@@ -17,7 +17,7 @@
 
 enum { RETENTION_NO = 0, RETENTION_EXPIRED = 1, RETENTION_MIGRATE = 2 };
 
-#define MIGRATE_MAX_SPEED (1048576 << 5)  // 32 MB
+#define MIGRATE_MAX_SPEED (1048576 << 4)  // 16 MB, vnode level
 #define MIGRATE_MIN_COST  (5)             // second
 
 static bool    tsdbShouldDoMigrate(STsdb *pTsdb);
@@ -105,8 +105,8 @@ _retention_loop:
   code = tsdbFSCopy(pTsdb, &fs);
   if (code) goto _exit;
 
-  int32_t fsSize = taosArrayGetSize(fs.aDFileSet);
   if (type == RETENTION_MIGRATE) {
+    int32_t fsSize = taosArrayGetSize(fs.aDFileSet);
     for (int32_t iSet = 0; iSet < fsSize; ++iSet) {
       SDFileSet *pSet = (SDFileSet *)taosArrayGet(fs.aDFileSet, iSet);
       int32_t    expLevel = tsdbFidLevel(pSet->fid, &pTsdb->keepCfg, now);
@@ -119,26 +119,35 @@ _retention_loop:
         maxFid = pSet->fid;
         fSize += (pSet->pDataF->size + pSet->pHeadF->size + pSet->pSmaF->size);
         if (fSize / speed > MIGRATE_MIN_COST) {
+          tsdbDebug("vgId:%d migrate loop %d with maxFid:%d", TD_VID(pTsdb->pVnode), nBatch, maxFid);
           break;
         }
         for (int32_t iStt = 0; iStt < pSet->nSttF; ++iStt) {
           fSize += pSet->aSttF[iStt]->size;
         }
         if (fSize / speed > MIGRATE_MIN_COST) {
-          tsdbDebug("vgId:%d migrate loop[%d] with maxFid:%d", TD_VID(pTsdb->pVnode), nBatch, maxFid);
+          tsdbDebug("vgId:%d migrate loop %d with maxFid:%d", TD_VID(pTsdb->pVnode), nBatch, maxFid);
           break;
         }
       }
     }
   } else if (type == RETENTION_EXPIRED) {
-    for (int32_t iSet = 0; iSet < fsSize; ++iSet) {
+    for (int32_t iSet = 0; iSet < taosArrayGetSize(fs.aDFileSet); ++iSet) {
       SDFileSet *pSet = (SDFileSet *)taosArrayGet(fs.aDFileSet, iSet);
       int32_t    expLevel = tsdbFidLevel(pSet->fid, &pTsdb->keepCfg, now);
       SDiskID    did;
 
       if (expLevel < 0) {
-        SET_DFSET_EXPIRED(pSet);
+        ASSERT(pSet->fid > maxFid);
         if (pSet->fid > maxFid) maxFid = pSet->fid;
+        taosMemoryFree(pSet->pHeadF);
+        taosMemoryFree(pSet->pDataF);
+        taosMemoryFree(pSet->pSmaF);
+        for (int32_t iStt = 0; iStt < pSet->nSttF; ++iStt) {
+          taosMemoryFree(pSet->aSttF[iStt]);
+        }
+        taosArrayRemove(fs.aDFileSet, iSet);
+        --iSet;
       } else {
         break;
       }
@@ -167,18 +176,25 @@ _commit_conflict_check:
 
   // migrate
   if (type == RETENTION_MIGRATE) {
-    for (int32_t iSet = 0; iSet < fsSize; ++iSet) {
+    for (int32_t iSet = 0; iSet < taosArrayGetSize(fs.aDFileSet); ++iSet) {
       SDFileSet *pSet = (SDFileSet *)taosArrayGet(fs.aDFileSet, iSet);
       int32_t    expLevel = tsdbFidLevel(pSet->fid, &pTsdb->keepCfg, now);
       SDiskID    did;
 
       if (pSet->fid > maxFid) break;
 
-      tsdbDebug("vgId:%d migrate loop[%d] with maxFid:%d, fid:%d, did:%d, level:%d, expLevel:%d", TD_VID(pTsdb->pVnode),
+      tsdbDebug("vgId:%d migrate loop %d with maxFid:%d, fid:%d, did:%d, level:%d, expLevel:%d", TD_VID(pTsdb->pVnode),
                 nBatch, maxFid, pSet->fid, pSet->diskId.id, pSet->diskId.level, expLevel);
 
       if (expLevel < 0) {
-        SET_DFSET_EXPIRED(pSet);
+        taosMemoryFree(pSet->pHeadF);
+        taosMemoryFree(pSet->pDataF);
+        taosMemoryFree(pSet->pSmaF);
+        for (int32_t iStt = 0; iStt < pSet->nSttF; ++iStt) {
+          taosMemoryFree(pSet->aSttF[iStt]);
+        }
+        taosArrayRemove(fs.aDFileSet, iSet);
+        --iSet;
       } else {
         if (expLevel == pSet->diskId.level) continue;