diff --git a/source/dnode/vnode/src/inc/vnodeInt.h b/source/dnode/vnode/src/inc/vnodeInt.h
index 0c386babde..57595a37d1 100644
--- a/source/dnode/vnode/src/inc/vnodeInt.h
+++ b/source/dnode/vnode/src/inc/vnodeInt.h
@@ -122,6 +122,7 @@ int         tsdbOpen(SVnode* pVnode, STsdb** ppTsdb, const char* dir, STsdbKeepC
 int         tsdbClose(STsdb** pTsdb);
 int32_t     tsdbBegin(STsdb* pTsdb);
 int32_t     tsdbCommit(STsdb* pTsdb);
+int32_t     tsdbDoRetention(STsdb* pTsdb, int64_t now);
 int         tsdbScanAndConvertSubmitMsg(STsdb* pTsdb, SSubmitReq* pMsg);
 int         tsdbInsertData(STsdb* pTsdb, int64_t version, SSubmitReq* pMsg, SSubmitRsp* pRsp);
 int32_t     tsdbInsertTableData(STsdb* pTsdb, int64_t version, SSubmitMsgIter* pMsgIter, SSubmitBlk* pBlock,
diff --git a/source/dnode/vnode/src/tsdb/tsdbRetention.c b/source/dnode/vnode/src/tsdb/tsdbRetention.c
index 1b6839459f..44a06e76f7 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRetention.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRetention.c
@@ -15,49 +15,81 @@
 
 #include "tsdb.h"
 
-int32_t tsdbDoRetention(STsdb *pTsdb, int64_t now) {
-  int32_t code = 0;
+static int32_t tsdbDoRetentionImpl(STsdb *pTsdb, int64_t now, int8_t try, int8_t *canDo) {
+  int32_t       code = 0;
+  STsdbFSState *pState;
 
-  // begin
-  code = tsdbFSBegin(pTsdb->fs);
-  if (code) goto _err;
+  if (try) {
+    pState = pTsdb->fs->cState;
+    *canDo = 0;
+  } else {
+    pState = pTsdb->fs->nState;
+  }
 
-  // do retention
-  for (int32_t iSet = 0; iSet < taosArrayGetSize(pTsdb->fs->nState->aDFileSet); iSet++) {
-    SDFileSet *pDFileSet = (SDFileSet *)taosArrayGet(pTsdb->fs->nState->aDFileSet, iSet);
+  for (int32_t iSet = 0; iSet < taosArrayGetSize(pState->aDFileSet); iSet++) {
+    SDFileSet *pDFileSet = (SDFileSet *)taosArrayGet(pState->aDFileSet, iSet);
     int32_t    expLevel = tsdbFidLevel(pDFileSet->fid, &pTsdb->keepCfg, now);
     SDiskID    did;
 
     // check
     if (expLevel == pDFileSet->fid) continue;
 
+    // delete or move
     if (expLevel < 0) {
-      tsdbFSStateDeleteDFileSet(pTsdb->fs->nState, pDFileSet->fid);
-      iSet--;
-      // tsdbInfo("vgId:%d file is out of data, remove it", td);
+      if (try) {
+        *canDo = 1;
+      } else {
+        tsdbFSStateDeleteDFileSet(pState, pDFileSet->fid);
+        iSet--;
+      }
     } else {
       // alloc
       if (tfsAllocDisk(pTsdb->pVnode->pTfs, expLevel, &did) < 0) {
         code = terrno;
-        goto _err;
+        goto _exit;
       }
 
       if (did.level == pDFileSet->diskId.level) continue;
 
-      ASSERT(did.level > pDFileSet->diskId.level);
+      if (try) {
+        *canDo = 1;
+      } else {
+        // copy the file to new disk
 
-      // copy the file to new disk
-      SDFileSet nDFileSet = *pDFileSet;
-      nDFileSet.diskId = did;
+        SDFileSet nDFileSet = *pDFileSet;
+        nDFileSet.diskId = did;
 
-      code = tsdbDFileSetCopy(pTsdb, pDFileSet, &nDFileSet);
-      if (code) goto _err;
+        tfsMkdirRecurAt(pTsdb->pVnode->pTfs, pTsdb->path, did);
 
-      code = tsdbFSStateUpsertDFileSet(pTsdb->fs->nState, &nDFileSet);
-      if (code) goto _err;
+        code = tsdbDFileSetCopy(pTsdb, pDFileSet, &nDFileSet);
+        if (code) goto _exit;
+
+        code = tsdbFSStateUpsertDFileSet(pState, &nDFileSet);
+        if (code) goto _exit;
+      }
     }
   }
 
+_exit:
+  return code;
+}
+
+int32_t tsdbDoRetention(STsdb *pTsdb, int64_t now) {
+  int32_t code = 0;
+  int8_t  canDo;
+
+  // try
+  tsdbDoRetentionImpl(pTsdb, now, 1, &canDo);
+  if (!canDo) goto _exit;
+
+  // begin
+  code = tsdbFSBegin(pTsdb->fs);
+  if (code) goto _err;
+
+  // do retention
+  code = tsdbDoRetentionImpl(pTsdb, now, 0, NULL);
+  if (code) goto _err;
+
   // commit
   code = tsdbFSCommit(pTsdb->fs);
   if (code) goto _err;
diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index 385a6b9d89..65cbfb00da 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -469,6 +469,16 @@ int32_t tsdbFidLevel(int32_t fid, STsdbKeepCfg *pKeepCfg, int64_t now) {
   int32_t aFid[3];
   TSKEY   key;
 
+  if (pKeepCfg->precision == TSDB_TIME_PRECISION_MILLI) {
+    now = now * 1000;
+  } else if (pKeepCfg->precision == TSDB_TIME_PRECISION_MICRO) {
+    now = now * 1000000l;
+  } else if (pKeepCfg->precision == TSDB_TIME_PRECISION_NANO) {
+    now = now * 1000000000l;
+  } else {
+    ASSERT(0);
+  }
+
   key = now - pKeepCfg->keep0 * tsTickPerMin[pKeepCfg->precision];
   aFid[0] = tsdbKeyFid(key, pKeepCfg->days, pKeepCfg->keep0);
   key = now - pKeepCfg->keep1 * tsTickPerMin[pKeepCfg->precision];
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index 12a4063631..a5a055827e 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -350,20 +350,23 @@ void vnodeUpdateMetaRsp(SVnode *pVnode, STableMetaRsp *pMetaRsp) {
 }
 
 static int32_t vnodeProcessTrimReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
+  int32_t     code = 0;
   SVTrimDbReq trimReq = {0};
-  if (tDeserializeSVTrimDbReq(pReq, len, &trimReq) != 0) {
-    terrno = TSDB_CODE_INVALID_MSG;
-    goto end;
-  }
 
   vInfo("vgId:%d, trim vnode request will be processed, time:%d", pVnode->config.vgId, trimReq.timestamp);
-  int32_t ret = 0;
-  if (ret != 0) {
-    goto end;
+
+  // decode
+  if (tDeserializeSVTrimDbReq(pReq, len, &trimReq) != 0) {
+    code = TSDB_CODE_INVALID_MSG;
+    goto _exit;
   }
 
-end:
-  return ret;
+  // process
+  code = tsdbDoRetention(pVnode->pTsdb, trimReq.timestamp);
+  if (code) goto _exit;
+
+_exit:
+  return code;
 }
 
 static int32_t vnodeProcessDropTtlTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {