diff --git a/source/dnode/mgmt/snode/src/smWorker.c b/source/dnode/mgmt/snode/src/smWorker.c
index 35bc79da3d..67476efd46 100644
--- a/source/dnode/mgmt/snode/src/smWorker.c
+++ b/source/dnode/mgmt/snode/src/smWorker.c
@@ -14,157 +14,13 @@
  */
 
 #define _DEFAULT_SOURCE
-// #include "dndSnode.h"
-// #include "dm.h"
-// #include "dndTransport.h"
-// #include "dndWorker.h"
+#include "smInt.h"
 
-#if 0
-
-typedef struct {
-  int32_t     vgId;
-  int32_t     refCount;
-  int32_t     snVersion;
-  int8_t      dropped;
-  char       *path;
-  SSnode     *pImpl;
-  STaosQueue *pSharedQ;
-  STaosQueue *pUniqueQ;
-} SSnodeObj;
 
 static void dndProcessSnodeSharedQueue(SDnode *pDnode, SRpcMsg *pMsg);
 
 static void dndProcessSnodeUniqueQueue(SDnode *pDnode, STaosQall *qall, int32_t numOfMsgs);
 
-static SSnode *dndAcquireSnode(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-  SSnode     *pSnode = NULL;
-  int32_t     refCount = 0;
-
-  taosRLockLatch(&pMgmt->latch);
-  if (pMgmt->deployed && !pMgmt->dropped && pMgmt->pSnode != NULL) {
-    refCount = atomic_add_fetch_32(&pMgmt->refCount, 1);
-    pSnode = pMgmt->pSnode;
-  } else {
-    terrno = TSDB_CODE_NODE_NOT_DEPLOYED;
-  }
-  taosRUnLockLatch(&pMgmt->latch);
-
-  if (pSnode != NULL) {
-    dTrace("acquire snode, refCount:%d", refCount);
-  }
-  return pSnode;
-}
-
-static void dndReleaseSnode(SDnode *pDnode, SSnode *pSnode) {
-  if (pSnode == NULL) return;
-
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-  taosRLockLatch(&pMgmt->latch);
-  int32_t refCount = atomic_sub_fetch_32(&pMgmt->refCount, 1);
-  taosRUnLockLatch(&pMgmt->latch);
-  dTrace("release snode, refCount:%d", refCount);
-}
-
-static int32_t dndReadSnodeFile(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-  int32_t     code = TSDB_CODE_NODE_PARSE_FILE_ERROR;
-  int32_t     len = 0;
-  int32_t     maxLen = 1024;
-  char       *content = calloc(1, maxLen + 1);
-  cJSON      *root = NULL;
-
-  char file[PATH_MAX + 20];
-  snprintf(file, PATH_MAX + 20, "%s/snode.json", pDnode->dir.dnode);
-
-  // FILE *fp = fopen(file, "r");
-  TdFilePtr pFile = taosOpenFile(file, TD_FILE_READ);
-  if (pFile == NULL) {
-    dDebug("file %s not exist", file);
-    code = 0;
-    goto PRASE_SNODE_OVER;
-  }
-
-  len = (int32_t)taosReadFile(pFile, content, maxLen);
-  if (len <= 0) {
-    dError("failed to read %s since content is null", file);
-    goto PRASE_SNODE_OVER;
-  }
-
-  content[len] = 0;
-  root = cJSON_Parse(content);
-  if (root == NULL) {
-    dError("failed to read %s since invalid json format", file);
-    goto PRASE_SNODE_OVER;
-  }
-
-  cJSON *deployed = cJSON_GetObjectItem(root, "deployed");
-  if (!deployed || deployed->type != cJSON_Number) {
-    dError("failed to read %s since deployed not found", file);
-    goto PRASE_SNODE_OVER;
-  }
-  pMgmt->deployed = deployed->valueint;
-
-  cJSON *dropped = cJSON_GetObjectItem(root, "dropped");
-  if (!dropped || dropped->type != cJSON_Number) {
-    dError("failed to read %s since dropped not found", file);
-    goto PRASE_SNODE_OVER;
-  }
-  pMgmt->dropped = dropped->valueint;
-
-  code = 0;
-  dDebug("succcessed to read file %s, deployed:%d dropped:%d", file, pMgmt->deployed, pMgmt->dropped);
-
-PRASE_SNODE_OVER:
-  if (content != NULL) free(content);
-  if (root != NULL) cJSON_Delete(root);
-  if (pFile != NULL) taosCloseFile(&pFile);
-
-  terrno = code;
-  return code;
-}
-
-static int32_t dndWriteSnodeFile(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-
-  char file[PATH_MAX + 20];
-  snprintf(file, PATH_MAX + 20, "%s/snode.json", pDnode->dir.dnode);
-
-  // FILE *fp = fopen(file, "w");
-  TdFilePtr pFile = taosOpenFile(file, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
-  if (pFile == NULL) {
-    terrno = TSDB_CODE_NODE_WRITE_FILE_ERROR;
-    dError("failed to write %s since %s", file, terrstr());
-    return -1;
-  }
-
-  int32_t len = 0;
-  int32_t maxLen = 1024;
-  char   *content = calloc(1, maxLen + 1);
-
-  len += snprintf(content + len, maxLen - len, "{\n");
-  len += snprintf(content + len, maxLen - len, "  \"deployed\": %d,\n", pMgmt->deployed);
-  len += snprintf(content + len, maxLen - len, "  \"dropped\": %d\n", pMgmt->dropped);
-  len += snprintf(content + len, maxLen - len, "}\n");
-
-  taosWriteFile(pFile, content, len);
-  taosFsyncFile(pFile);
-  taosCloseFile(&pFile);
-  free(content);
-
-  char realfile[PATH_MAX + 20];
-  snprintf(realfile, PATH_MAX + 20, "%s/snode.json", pDnode->dir.dnode);
-
-  if (taosRenameFile(file, realfile) != 0) {
-    terrno = TSDB_CODE_NODE_WRITE_FILE_ERROR;
-    dError("failed to rename %s since %s", file, terrstr());
-    return -1;
-  }
-
-  dInfo("successed to write %s, deployed:%d dropped:%d", realfile, pMgmt->deployed, pMgmt->dropped);
-  return 0;
-}
-
 static int32_t dndStartSnodeWorker(SDnode *pDnode) {
   SSnodeMgmt *pMgmt = &pDnode->smgmt;
   pMgmt->uniqueWorkers = taosArrayInit(0, sizeof(void *));
@@ -206,124 +62,6 @@ static void dndStopSnodeWorker(SDnode *pDnode) {
   taosArrayDestroy(pMgmt->uniqueWorkers);
 }
 
-static void dndBuildSnodeOption(SDnode *pDnode, SSnodeOpt *pOption) {
-  pOption->pDnode = pDnode;
-  pOption->sendReqFp = dndSendReqToDnode;
-  pOption->sendMnodeReqFp = dndSendReqToMnode;
-  pOption->sendRedirectRspFp = dndSendRedirectRsp;
-  pOption->dnodeId = pDnode->dnodeId;
-  pOption->clusterId = pDnode->clusterId;
-  pOption->sver = tsVersion;
-}
-
-static int32_t dndOpenSnode(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-  SSnode     *pSnode = dndAcquireSnode(pDnode);
-  if (pSnode != NULL) {
-    dndReleaseSnode(pDnode, pSnode);
-    terrno = TSDB_CODE_NODE_ALREADY_DEPLOYED;
-    dError("failed to create snode since %s", terrstr());
-    return -1;
-  }
-
-  SSnodeOpt option = {0};
-  dndBuildSnodeOption(pDnode, &option);
-
-  pSnode = sndOpen(pDnode->dir.snode, &option);
-  if (pSnode == NULL) {
-    dError("failed to open snode since %s", terrstr());
-    return -1;
-  }
-
-  if (dndStartSnodeWorker(pDnode) != 0) {
-    dError("failed to start snode worker since %s", terrstr());
-    sndClose(pSnode);
-    return -1;
-  }
-
-  pMgmt->deployed = 1;
-  if (dndWriteSnodeFile(pDnode) != 0) {
-    pMgmt->deployed = 0;
-    dError("failed to write snode file since %s", terrstr());
-    dndStopSnodeWorker(pDnode);
-    sndClose(pSnode);
-    return -1;
-  }
-
-  taosWLockLatch(&pMgmt->latch);
-  pMgmt->pSnode = pSnode;
-  taosWUnLockLatch(&pMgmt->latch);
-
-  dInfo("snode open successfully");
-  return 0;
-}
-
-static int32_t dndDropSnode(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-
-  SSnode *pSnode = dndAcquireSnode(pDnode);
-  if (pSnode == NULL) {
-    dError("failed to drop snode since %s", terrstr());
-    return -1;
-  }
-
-  taosRLockLatch(&pMgmt->latch);
-  pMgmt->dropped = 1;
-  taosRUnLockLatch(&pMgmt->latch);
-
-  if (dndWriteSnodeFile(pDnode) != 0) {
-    taosRLockLatch(&pMgmt->latch);
-    pMgmt->dropped = 0;
-    taosRUnLockLatch(&pMgmt->latch);
-
-    dndReleaseSnode(pDnode, pSnode);
-    dError("failed to drop snode since %s", terrstr());
-    return -1;
-  }
-
-  dndReleaseSnode(pDnode, pSnode);
-  dndStopSnodeWorker(pDnode);
-  pMgmt->deployed = 0;
-  dndWriteSnodeFile(pDnode);
-  sndClose(pSnode);
-  pMgmt->pSnode = NULL;
-  sndDestroy(pDnode->dir.snode);
-
-  return 0;
-}
-
-int32_t smProcessCreateReq(SDnode *pDnode, SRpcMsg *pReq) {
-  SDCreateSnodeReq createReq = {0};
-  if (tDeserializeSMCreateDropQSBNodeReq(pReq->pCont, pReq->contLen, &createReq) != 0) {
-    terrno = TSDB_CODE_INVALID_MSG;
-    return -1;
-  }
-
-  if (createReq.dnodeId != pDnode->dnodeId) {
-    terrno = TSDB_CODE_NODE_INVALID_OPTION;
-    dError("failed to create snode since %s", terrstr());
-    return -1;
-  } else {
-    return dndOpenSnode(pDnode);
-  }
-}
-
-int32_t smProcessDropReq(SDnode *pDnode, SRpcMsg *pReq) {
-  SDDropSnodeReq dropReq = {0};
-  if (tDeserializeSMCreateDropQSBNodeReq(pReq->pCont, pReq->contLen, &dropReq) != 0) {
-    terrno = TSDB_CODE_INVALID_MSG;
-    return -1;
-  }
-
-  if (dropReq.dnodeId != pDnode->dnodeId) {
-    terrno = TSDB_CODE_NODE_INVALID_OPTION;
-    dError("failed to drop snode since %s", terrstr());
-    return -1;
-  } else {
-    return dndDropSnode(pDnode);
-  }
-}
-
 static void dndProcessSnodeUniqueQueue(SDnode *pDnode, STaosQall *qall, int32_t numOfMsgs) {
   /*SSnodeMgmt *pMgmt = &pDnode->smgmt;*/
   int32_t code = TSDB_CODE_NODE_NOT_DEPLOYED;
@@ -459,33 +197,3 @@ void dndProcessSnodeUniqueMsg(SDnode *pDnode, SRpcMsg *pMsg, SEpSet *pEpSet) {
 void dndProcessSnodeSharedMsg(SDnode *pDnode, SRpcMsg *pMsg, SEpSet *pEpSet) {
   dndWriteSnodeMsgToWorker(pDnode, &pDnode->smgmt.sharedWorker, pMsg);
 }
-
-int32_t dndInitSnode(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-  taosInitRWLatch(&pMgmt->latch);
-
-  if (dndReadSnodeFile(pDnode) != 0) {
-    return -1;
-  }
-
-  if (pMgmt->dropped) {
-    dInfo("snode has been deployed and needs to be deleted");
-    sndDestroy(pDnode->dir.snode);
-    return 0;
-  }
-
-  if (!pMgmt->deployed) return 0;
-
-  return dndOpenSnode(pDnode);
-}
-
-void dndCleanupSnode(SDnode *pDnode) {
-  SSnodeMgmt *pMgmt = &pDnode->smgmt;
-  if (pMgmt->pSnode) {
-    dndStopSnodeWorker(pDnode);
-    sndClose(pMgmt->pSnode);
-    pMgmt->pSnode = NULL;
-  }
-}
-
-#endif
\ No newline at end of file