diff --git a/include/server/mnode/mnode.h b/include/server/mnode/mnode.h
index e78994fc9cc2f8aa18250c737f5993c4736cf91d..7ea50a92cefe8869c00c84a85fe7b9c90347c168 100644
--- a/include/server/mnode/mnode.h
+++ b/include/server/mnode/mnode.h
@@ -118,7 +118,7 @@ typedef struct {
 int32_t mnodeGetStatistics(SMnodeStat *stat);
 
 /**
- * Get the statistical information of Mnode.
+ * Get the auth information.
  *
  * @param user, username.
  * @param spi,  security parameter index.
diff --git a/source/server/dnode/inc/dnodeCfg.h b/source/server/dnode/inc/dnodeCfg.h
index 7a0d830a4b30b3a8e75e7de585e38dbc87b1fcf3..1565e7649ac6b1c5be7fc52719323a048293e217 100644
--- a/source/server/dnode/inc/dnodeCfg.h
+++ b/source/server/dnode/inc/dnodeCfg.h
@@ -21,21 +21,21 @@ extern "C" {
 #endif
 #include "dnodeInt.h"
 
-typedef struct DnCfg {
+typedef struct SDnCfg {
   int32_t         dnodeId;
   int32_t         dropped;
   char            clusterId[TSDB_CLUSTER_ID_LEN];
   char            file[PATH_MAX + 20];
   pthread_mutex_t mutex;
-} DnCfg;
+} SDnCfg;
 
-int32_t dnodeInitCfg(DnCfg **cfg);
-void    dnodeCleanupCfg(DnCfg **cfg);
-void    dnodeUpdateCfg(DnCfg *cfg, SDnodeCfg *data);
-int32_t dnodeGetDnodeId(DnCfg *cfg);
-void    dnodeGetClusterId(DnCfg *cfg, char *clusterId);
-void    dnodeGetCfg(DnCfg *cfg, int32_t *dnodeId, char *clusterId);
-void    dnodeSetDropped(DnCfg *cfg);
+int32_t dnodeInitCfg(SDnCfg **cfg);
+void    dnodeCleanupCfg(SDnCfg **cfg);
+void    dnodeUpdateCfg(SDnCfg *cfg, SDnodeCfg *data);
+int32_t dnodeGetDnodeId(SDnCfg *cfg);
+void    dnodeGetClusterId(SDnCfg *cfg, char *clusterId);
+void    dnodeGetCfg(SDnCfg *cfg, int32_t *dnodeId, char *clusterId);
+void    dnodeSetDropped(SDnCfg *cfg);
 
 #ifdef __cplusplus
 }
diff --git a/source/server/dnode/inc/dnodeCheck.h b/source/server/dnode/inc/dnodeCheck.h
index db275259f54e15b6f881e6fbaac6b6be22c3a2f5..29172ba4dfc7a19eded484e8cfc45982f562d172 100644
--- a/source/server/dnode/inc/dnodeCheck.h
+++ b/source/server/dnode/inc/dnodeCheck.h
@@ -21,11 +21,11 @@ extern "C" {
 #endif
 #include "dnodeInt.h"
 
-typedef struct DnCheck {
-} DnCheck;
+typedef struct SDnCheck {
+} SDnCheck;
 
-int32_t dnodeInitCheck(DnCheck **check);
-void    dnodeCleanupCheck(DnCheck **check);
+int32_t dnodeInitCheck(SDnCheck **check);
+void    dnodeCleanupCheck(SDnCheck **check);
 
 #ifdef __cplusplus
 }
diff --git a/source/server/dnode/inc/dnodeEps.h b/source/server/dnode/inc/dnodeEps.h
index 79c49bde40747930c20769538ac790847a2578e6..80e2a2f488c7f5206b87f047f836bc767be2c20e 100644
--- a/source/server/dnode/inc/dnodeEps.h
+++ b/source/server/dnode/inc/dnodeEps.h
@@ -22,19 +22,19 @@ extern "C" {
 #include "hash.h"
 #include "dnodeInt.h"
 
-typedef struct DnEps {
+typedef struct SDnEps {
   int32_t         dnodeId;
   int32_t         dnodeNum;
   SDnodeEp *      dnodeList;
   SHashObj *      dnodeHash;
   char            file[PATH_MAX + 20];
   pthread_mutex_t mutex;
-} DnEps;
+} SDnEps;
 
-int32_t dnodeInitEps(DnEps **eps);
-void    dnodeCleanupEps(DnEps **eps);
-void    dnodeUpdateEps(DnEps *eps, SDnodeEps *data);
-bool    dnodeIsDnodeEpChanged(DnEps *eps, int32_t dnodeId, char *epstr);
+int32_t dnodeInitEps(SDnEps **eps);
+void    dnodeCleanupEps(SDnEps **eps);
+void    dnodeUpdateEps(SDnEps *eps, SDnodeEps *data);
+bool    dnodeIsDnodeEpChanged(SDnEps *eps, int32_t dnodeId, char *epstr);
 void    dnodeGetDnodeEp(int32_t dnodeId, char *epstr, char *fqdn, uint16_t *port);
 
 #ifdef __cplusplus
diff --git a/source/server/dnode/inc/dnodeInt.h b/source/server/dnode/inc/dnodeInt.h
index b32e23db14b34e21496c915c2df9c63f31955501..9b56147ca0d94bbeca0c93b3b593e479ee50b6c4 100644
--- a/source/server/dnode/inc/dnodeInt.h
+++ b/source/server/dnode/inc/dnodeInt.h
@@ -27,32 +27,28 @@ extern "C" {
 #include "tstep.h"
 #include "dnode.h"
 
-struct DnCfg;
-struct DnCheck;
-struct DnEps;
-struct DnMnEps;
-struct DnStatus;
-struct DnTelem;
-struct DnTrans;
-struct DnMain;
-struct Mnode;
-struct Vnode;
+struct SDnCfg;
+struct SDnCheck;
+struct SDnEps;
+struct SDnMnEps;
+struct SDnStatus;
+struct SDnTelem;
+struct SDnTrans;
+struct SDnMain;
 
-typedef struct Dnode {
-  struct SSteps *  steps;
-  struct DnCfg *   cfg;
-  struct DnCheck * check;
-  struct DnEps *   eps;
-  struct DnMnEps * meps;
-  struct DnStatus *status;
-  struct DnTelem * telem;
-  struct DnTrans * trans;
-  struct DnMain *  main;
-  struct Mnode *   mnode;
-  struct Vnode *   vnode;
-} Dnode;
+typedef struct SDnode {
+  struct SSteps*    steps;
+  struct SDnCfg*    cfg;
+  struct SDnCheck*  check;
+  struct SDnEps*    eps;
+  struct SDnMnEps*  meps;
+  struct SDnStatus* status;
+  struct SDnTelem*  telem;
+  struct SDnTrans*  trans;
+  struct SDnMain*   main;
+} SDnode;
 
-Dnode* dnodeInst();
+SDnode* dnodeInst();
 
 #define dFatal(...) { if (dDebugFlag & DEBUG_FATAL) { taosPrintLog("DND FATAL ", 255, __VA_ARGS__); }}
 #define dError(...) { if (dDebugFlag & DEBUG_ERROR) { taosPrintLog("DND ERROR ", 255, __VA_ARGS__); }}
diff --git a/source/server/dnode/inc/dnodeMain.h b/source/server/dnode/inc/dnodeMain.h
index 9fe5d64800997bf9b5fb898fc0b53c3b90f57675..08f6e108307306b6473548c22ceb8c74e576f896 100644
--- a/source/server/dnode/inc/dnodeMain.h
+++ b/source/server/dnode/inc/dnodeMain.h
@@ -27,14 +27,14 @@ typedef enum {
   TD_RUN_STAT_STOPPED
 } RunStat;
 
-typedef struct DnMain {
+typedef struct SDnMain {
   RunStat      runStatus;
   void *       dnodeTimer;
   SStartupStep startup;
-} DnMain;
+} SDnMain;
 
-int32_t dnodeInitMain(DnMain **main);
-void    dnodeCleanupMain(DnMain **main);
+int32_t dnodeInitMain(SDnMain **main);
+void    dnodeCleanupMain(SDnMain **main);
 int32_t dnodeInitStorage();
 void    dnodeCleanupStorage();
 void    dnodeReportStartup(char *name, char *desc);
diff --git a/source/server/dnode/inc/dnodeMnodeEps.h b/source/server/dnode/inc/dnodeMnodeEps.h
index b94b08c3046398cce34b7d08f536e0de1652ce0c..a70c621046ce2e4c34032fa6a1a21455a6d25539 100644
--- a/source/server/dnode/inc/dnodeMnodeEps.h
+++ b/source/server/dnode/inc/dnodeMnodeEps.h
@@ -21,19 +21,19 @@ extern "C" {
 #endif
 #include "dnodeInt.h"
 
-typedef struct DnMnEps {
+typedef struct SDnMnEps {
   SRpcEpSet       mnodeEpSet;
   SMInfos         mnodeInfos;
   char            file[PATH_MAX + 20];
   pthread_mutex_t mutex;
-} DnMnEps;
+} SDnMnEps;
 
-int32_t dnodeInitMnodeEps(DnMnEps **meps);
-void    dnodeCleanupMnodeEps(DnMnEps **meps);
-void    dnodeUpdateMnodeFromStatus(DnMnEps *meps, SMInfos *pMinfos);
-void    dnodeUpdateMnodeFromPeer(DnMnEps *meps, SRpcEpSet *pEpSet);
-void    dnodeGetEpSetForPeer(DnMnEps *meps, SRpcEpSet *epSet);
-void    dnodeGetEpSetForShell(DnMnEps *meps, SRpcEpSet *epSet);
+int32_t dnodeInitMnodeEps(SDnMnEps **meps);
+void    dnodeCleanupMnodeEps(SDnMnEps **meps);
+void    dnodeUpdateMnodeFromStatus(SDnMnEps *meps, SMInfos *pMinfos);
+void    dnodeUpdateMnodeFromPeer(SDnMnEps *meps, SRpcEpSet *pEpSet);
+void    dnodeGetEpSetForPeer(SDnMnEps *meps, SRpcEpSet *epSet);
+void    dnodeGetEpSetForShell(SDnMnEps *meps, SRpcEpSet *epSet);
 void    dnodeSendRedirectMsg(SRpcMsg *rpcMsg, bool forShell);
 
 #ifdef __cplusplus
diff --git a/source/server/dnode/inc/dnodeStatus.h b/source/server/dnode/inc/dnodeStatus.h
index cfd58578c0d9b1171abc06777d9b1fbc9050a710..65a349ba6d03e83f49d8cd5b225477a1124c996e 100644
--- a/source/server/dnode/inc/dnodeStatus.h
+++ b/source/server/dnode/inc/dnodeStatus.h
@@ -21,14 +21,14 @@ extern "C" {
 #endif
 #include "dnodeInt.h"
 
-typedef struct DnStatus {
+typedef struct SDnStatus {
   void *   dnodeTimer;
   void *   statusTimer;
   uint32_t rebootTime;
-} DnStatus;
+} SDnStatus;
 
-int32_t dnodeInitStatus(DnStatus **status);
-void    dnodeCleanupStatus(DnStatus **status);
+int32_t dnodeInitStatus(SDnStatus **status);
+void    dnodeCleanupStatus(SDnStatus **status);
 void    dnodeProcessStatusRsp(SRpcMsg *pMsg);
 
 #ifdef __cplusplus
diff --git a/source/server/dnode/inc/dnodeTelem.h b/source/server/dnode/inc/dnodeTelem.h
index 48b10399bdb28f08490782700f4addd0721b0e69..94356fffba9319c1df8cf22dc545d4ecee2e7626 100644
--- a/source/server/dnode/inc/dnodeTelem.h
+++ b/source/server/dnode/inc/dnodeTelem.h
@@ -25,17 +25,17 @@ extern "C" {
  * sem_timedwait is NOT implemented on MacOSX
  * thus we use pthread_mutex_t/pthread_cond_t to simulate
  */
-typedef struct DnTelem {
+typedef struct SDnTelem {
   bool             enable;
   pthread_mutex_t  lock;
   pthread_cond_t   cond;
   volatile int32_t exit;
   pthread_t        thread;
   char             email[TSDB_FQDN_LEN];
-} DnTelem;
+} SDnTelem;
 
-int32_t dnodeInitTelem(DnTelem **telem);
-void    dnodeCleanupTelem(DnTelem **telem);
+int32_t dnodeInitTelem(SDnTelem **telem);
+void    dnodeCleanupTelem(SDnTelem **telem);
 
 #ifdef __cplusplus
 }
diff --git a/source/server/dnode/inc/dnodeTrans.h b/source/server/dnode/inc/dnodeTrans.h
index 306624428b9578ca2488e3ac0f5c79b577e90d11..d9016f0c7bc689262de8d83644044a27b4f4cc98 100644
--- a/source/server/dnode/inc/dnodeTrans.h
+++ b/source/server/dnode/inc/dnodeTrans.h
@@ -23,7 +23,7 @@ extern "C" {
 
 typedef void (*RpcMsgFp)( SRpcMsg *pMsg);
 
-typedef struct DnTrans {
+typedef struct SDnTrans {
   void *   serverRpc;
   void *   clientRpc;
   void *   shellRpc;
@@ -31,11 +31,10 @@ typedef struct DnTrans {
   int32_t  submitReqNum;
   RpcMsgFp peerMsgFp[TSDB_MSG_TYPE_MAX];
   RpcMsgFp shellMsgFp[TSDB_MSG_TYPE_MAX];
+} SDnTrans;
 
-} DnTrans;
-
-int32_t dnodeInitTrans(DnTrans **rans);
-void    dnodeCleanupTrans(DnTrans **trans);
+int32_t dnodeInitTrans(SDnTrans **rans);
+void    dnodeCleanupTrans(SDnTrans **trans);
 void    dnodeSendMsgToMnode(SRpcMsg *rpcMsg);
 void    dnodeSendMsgToDnode(SRpcEpSet *epSet, SRpcMsg *rpcMsg);
 void    dnodeSendMsgToDnodeRecv(SRpcMsg *rpcMsg, SRpcMsg *rpcRsp, SRpcEpSet *epSet);
diff --git a/source/server/dnode/src/dnodeCfg.c b/source/server/dnode/src/dnodeCfg.c
index 77329e2ad17af8fbb80b10db46327695eb5091fc..ee8a17db082de9ada1da9028feb562dc0ebb32c1 100644
--- a/source/server/dnode/src/dnodeCfg.c
+++ b/source/server/dnode/src/dnodeCfg.c
@@ -18,7 +18,7 @@
 #include "cJSON.h"
 #include "dnodeCfg.h"
 
-static int32_t dnodeReadCfg(DnCfg *cfg) {
+static int32_t dnodeReadCfg(SDnCfg *cfg) {
   int32_t len = 0;
   int32_t maxLen = 200;
   char *  content = calloc(1, maxLen + 1);
@@ -76,7 +76,7 @@ PARSE_CFG_OVER:
   return 0;
 }
 
-static int32_t dnodeWriteCfg(DnCfg *cfg) {
+static int32_t dnodeWriteCfg(SDnCfg *cfg) {
   FILE *fp = fopen(cfg->file, "w");
   if (!fp) {
     dError("failed to write %s since %s", cfg->file, strerror(errno));
@@ -103,8 +103,8 @@ static int32_t dnodeWriteCfg(DnCfg *cfg) {
   return 0;
 }
 
-int32_t dnodeInitCfg(DnCfg **out) {
-  DnCfg* cfg = calloc(1, sizeof(DnCfg));
+int32_t dnodeInitCfg(SDnCfg **out) {
+  SDnCfg* cfg = calloc(1, sizeof(SDnCfg));
   if (cfg == NULL) return -1;
 
   cfg->dnodeId = 0;
@@ -127,15 +127,15 @@ int32_t dnodeInitCfg(DnCfg **out) {
   return ret;
 }
 
-void dnodeCleanupCfg(DnCfg **out) {
-  DnCfg* cfg = *out;
+void dnodeCleanupCfg(SDnCfg **out) {
+  SDnCfg* cfg = *out;
   *out = NULL;
 
   pthread_mutex_destroy(&cfg->mutex);
   free(cfg);
 }
 
-void dnodeUpdateCfg(DnCfg *cfg, SDnodeCfg *data) {
+void dnodeUpdateCfg(SDnCfg *cfg, SDnodeCfg *data) {
   if (cfg == NULL || cfg->dnodeId == 0) return;
 
   pthread_mutex_lock(&cfg->mutex);
@@ -148,14 +148,14 @@ void dnodeUpdateCfg(DnCfg *cfg, SDnodeCfg *data) {
   pthread_mutex_unlock(&cfg->mutex);
 }
 
-void dnodeSetDropped(DnCfg *cfg) {
+void dnodeSetDropped(SDnCfg *cfg) {
   pthread_mutex_lock(&cfg->mutex);
   cfg->dropped = 1;
   dnodeWriteCfg(cfg);
   pthread_mutex_unlock(&cfg->mutex);
 }
 
-int32_t dnodeGetDnodeId(DnCfg *cfg) {
+int32_t dnodeGetDnodeId(SDnCfg *cfg) {
   int32_t dnodeId = 0;
   pthread_mutex_lock(&cfg->mutex);
   dnodeId = cfg->dnodeId;
@@ -163,13 +163,13 @@ int32_t dnodeGetDnodeId(DnCfg *cfg) {
   return dnodeId;
 }
 
-void dnodeGetClusterId(DnCfg *cfg, char *clusterId) {
+void dnodeGetClusterId(SDnCfg *cfg, char *clusterId) {
   pthread_mutex_lock(&cfg->mutex);
   tstrncpy(clusterId, cfg->clusterId, TSDB_CLUSTER_ID_LEN);
   pthread_mutex_unlock(&cfg->mutex);
 }
 
-void dnodeGetCfg(DnCfg *cfg, int32_t *dnodeId, char *clusterId) {
+void dnodeGetCfg(SDnCfg *cfg, int32_t *dnodeId, char *clusterId) {
   pthread_mutex_lock(&cfg->mutex);
   *dnodeId = cfg->dnodeId;
   tstrncpy(clusterId, cfg->clusterId, TSDB_CLUSTER_ID_LEN);
diff --git a/source/server/dnode/src/dnodeCheck.c b/source/server/dnode/src/dnodeCheck.c
index 9175b4e51999309def88d8ef270230323c159fd4..8f561b1ea05174c11d3ba79970b098cf36325a22 100644
--- a/source/server/dnode/src/dnodeCheck.c
+++ b/source/server/dnode/src/dnodeCheck.c
@@ -145,8 +145,8 @@ static int32_t dnodeCheckAccess() { return 0; }
 static int32_t dnodeCheckVersion() { return 0; }
 static int32_t dnodeCheckDatafile() { return 0; }
 
-int32_t dnodeInitCheck(DnCheck **out) {
-  DnCheck *check = calloc(1, sizeof(DnCheck));
+int32_t dnodeInitCheck(SDnCheck **out) {
+  SDnCheck *check = calloc(1, sizeof(SDnCheck));
   if (check == NULL) return -1;
 
   *out = check;
@@ -195,8 +195,8 @@ int32_t dnodeInitCheck(DnCheck **out) {
   return 0;
 }
 
-void dnodeCleanupCheck(DnCheck **out) {
-  DnCheck *check = *out;
+void dnodeCleanupCheck(SDnCheck **out) {
+  SDnCheck *check = *out;
   *out = NULL;
 
   free(check);
diff --git a/source/server/dnode/src/dnodeEps.c b/source/server/dnode/src/dnodeEps.c
index e633da9fc969a221b5cc2048d9ac69304207918f..317a9968fa4155cea5aa821a7b459e3621543d54 100644
--- a/source/server/dnode/src/dnodeEps.c
+++ b/source/server/dnode/src/dnodeEps.c
@@ -20,7 +20,7 @@
 #include "dnodeEps.h"
 #include "dnodeCfg.h"
 
-static void dnodePrintEps(DnEps *eps) {
+static void dnodePrintEps(SDnEps *eps) {
   dDebug("print dnodeEp, dnodeNum:%d", eps->dnodeNum);
   for (int32_t i = 0; i < eps->dnodeNum; i++) {
     SDnodeEp *ep = &eps->dnodeList[i];
@@ -28,7 +28,7 @@ static void dnodePrintEps(DnEps *eps) {
   }
 }
 
-static void dnodeResetEps(DnEps *eps, SDnodeEps *data) {
+static void dnodeResetEps(SDnEps *eps, SDnodeEps *data) {
   assert(data != NULL);
 
   if (data->dnodeNum > eps->dnodeNum) {
@@ -48,7 +48,7 @@ static void dnodeResetEps(DnEps *eps, SDnodeEps *data) {
   }
 }
 
-static int32_t dnodeReadEps(DnEps *eps) {
+static int32_t dnodeReadEps(SDnEps *eps) {
   int32_t len = 0;
   int32_t maxLen = 30000;
   char *  content = calloc(1, maxLen + 1);
@@ -145,7 +145,7 @@ PRASE_EPS_OVER:
   return 0;
 }
 
-static int32_t dnodeWriteEps(DnEps *eps) {
+static int32_t dnodeWriteEps(SDnEps *eps) {
   FILE *fp = fopen(eps->file, "w");
   if (!fp) {
     dError("failed to write %s since %s", eps->file, strerror(errno));
@@ -182,8 +182,8 @@ static int32_t dnodeWriteEps(DnEps *eps) {
   return 0;
 }
 
-int32_t dnodeInitEps(DnEps **out) {
-  DnEps *eps = calloc(1, sizeof(DnEps));
+int32_t dnodeInitEps(SDnEps **out) {
+  SDnEps *eps = calloc(1, sizeof(SDnEps));
   if (eps == NULL) return -1;
 
   eps->dnodeHash = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
@@ -203,8 +203,8 @@ int32_t dnodeInitEps(DnEps **out) {
   return ret;
 }
 
-void dnodeCleanupEps(DnEps **out) {
-  DnEps *eps = *out;
+void dnodeCleanupEps(SDnEps **out) {
+  SDnEps *eps = *out;
   *out = NULL;
 
   pthread_mutex_lock(&eps->mutex);
@@ -225,7 +225,7 @@ void dnodeCleanupEps(DnEps **out) {
   free(eps);
 }
 
-void dnodeUpdateEps(DnEps *eps, SDnodeEps *data) {
+void dnodeUpdateEps(SDnEps *eps, SDnodeEps *data) {
   if (data == NULL || data->dnodeNum <= 0) return;
 
   data->dnodeNum = htonl(data->dnodeNum);
@@ -250,7 +250,7 @@ void dnodeUpdateEps(DnEps *eps, SDnodeEps *data) {
   pthread_mutex_unlock(&eps->mutex);
 }
 
-bool dnodeIsDnodeEpChanged(DnEps *eps, int32_t dnodeId, char *epstr) {
+bool dnodeIsDnodeEpChanged(SDnEps *eps, int32_t dnodeId, char *epstr) {
   bool changed = false;
 
   pthread_mutex_lock(&eps->mutex);
@@ -269,7 +269,7 @@ bool dnodeIsDnodeEpChanged(DnEps *eps, int32_t dnodeId, char *epstr) {
 }
 
 void dnodeGetDnodeEp(int32_t dnodeId, char *epstr, char *fqdn, uint16_t *port) {
-  DnEps *eps = dnodeInst()->eps;
+  SDnEps *eps = dnodeInst()->eps;
   pthread_mutex_lock(&eps->mutex);
 
   SDnodeEp *ep = taosHashGet(eps->dnodeHash, &dnodeId, sizeof(int32_t));
diff --git a/source/server/dnode/src/dnodeInt.c b/source/server/dnode/src/dnodeInt.c
index 0da28343375d736c1f2d55f0a6dc230629897691..abb552cb02b9d629de5a14647165eedf6c5b7605 100644
--- a/source/server/dnode/src/dnodeInt.c
+++ b/source/server/dnode/src/dnodeInt.c
@@ -33,9 +33,10 @@
 #include "mnode.h"
 #include "vnode.h"
 
-static Dnode tsDnode = {0};
-
-Dnode *dnodeInst() { return &tsDnode; }
+SDnode *dnodeInst() {
+  static SDnode inst = {0};
+  return &inst;
+}
 
 static int32_t dnodeInitVnodeModule(void **unused) {
   SVnodePara para;
@@ -47,7 +48,7 @@ static int32_t dnodeInitVnodeModule(void **unused) {
 }
 
 static int32_t dnodeInitMnodeModule(void **unused) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
 
   SMnodePara para;
   para.fp.GetDnodeEp = dnodeGetDnodeEp;
@@ -64,7 +65,7 @@ int32_t dnodeInit() {
   struct SSteps *steps = taosStepInit(24, dnodeReportStartup);
   if (steps == NULL) return -1;
 
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
 
   taosStepAdd(steps, "dnode-main", (void **)&dnode->main, (InitFp)dnodeInitMain, (CleanupFp)dnodeCleanupMain);
   taosStepAdd(steps, "dnode-storage", NULL, (InitFp)dnodeInitStorage, (CleanupFp)dnodeCleanupStorage);
@@ -96,7 +97,7 @@ int32_t dnodeInit() {
 }
 
 void dnodeCleanup() {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   if (dnode->main->runStatus != TD_RUN_STAT_STOPPED) {
     dnode->main->runStatus = TD_RUN_STAT_STOPPED;
     taosStepCleanup(dnode->steps);
diff --git a/source/server/dnode/src/dnodeMain.c b/source/server/dnode/src/dnodeMain.c
index 73179d48b7fa7ac60537faca98af9ebcc3f258cf..943ff61c135d1559ad54f276e28942e20baccde8 100644
--- a/source/server/dnode/src/dnodeMain.c
+++ b/source/server/dnode/src/dnodeMain.c
@@ -55,8 +55,8 @@ void dnodePrintDiskInfo() {
   dInfo("==================================");
 }
 
-int32_t dnodeInitMain(DnMain **out) {
-  DnMain* main = calloc(1, sizeof(DnMain));
+int32_t dnodeInitMain(SDnMain **out) {
+  SDnMain* main = calloc(1, sizeof(SDnMain));
   if (main == NULL) return -1;
 
   main->runStatus = TD_RUN_STAT_STOPPED;
@@ -101,8 +101,8 @@ int32_t dnodeInitMain(DnMain **out) {
   return taosCheckGlobalCfg();
 }
 
-void dnodeCleanupMain(DnMain **out) {
-  DnMain *main = *out;
+void dnodeCleanupMain(SDnMain **out) {
+  SDnMain *main = *out;
   *out = NULL;
 
   if (main->dnodeTimer != NULL) {
@@ -202,7 +202,7 @@ void dnodeCleanupStorage() {
 }
 
 void dnodeReportStartup(char *name, char *desc) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   if (dnode->main != NULL) {
     SStartupStep *startup = &dnode->main->startup;
     tstrncpy(startup->name, name, strlen(startup->name));
@@ -212,7 +212,7 @@ void dnodeReportStartup(char *name, char *desc) {
 }
 
 void dnodeReportStartupFinished(char *name, char *desc) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   SStartupStep *startup = &dnode->main->startup;
   tstrncpy(startup->name, name, strlen(startup->name));
   tstrncpy(startup->desc, desc, strlen(startup->desc));
@@ -222,7 +222,7 @@ void dnodeReportStartupFinished(char *name, char *desc) {
 void dnodeProcessStartupReq(SRpcMsg *pMsg) {
   dInfo("startup msg is received, cont:%s", (char *)pMsg->pCont);
 
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   SStartupStep *pStep = rpcMallocCont(sizeof(SStartupStep));
   memcpy(pStep, &dnode->main->startup, sizeof(SStartupStep));
 
@@ -234,7 +234,7 @@ void dnodeProcessStartupReq(SRpcMsg *pMsg) {
 }
 
 static int32_t dnodeStartMnode(SRpcMsg *pMsg) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   SCreateMnodeMsg *pCfg = pMsg->pCont;
   pCfg->dnodeId = htonl(pCfg->dnodeId);
   if (pCfg->dnodeId != dnode->cfg->dnodeId) {
@@ -254,7 +254,7 @@ static int32_t dnodeStartMnode(SRpcMsg *pMsg) {
     dDebug("meps index:%d, meps:%d:%s", i, pCfg->mnodes.mnodeInfos[i].mnodeId, pCfg->mnodes.mnodeInfos[i].mnodeEp);
   }
 
-  if (mnodeIsServing(dnode->mnode)) return 0;
+  if (mnodeIsServing()) return 0;
 
   return mnodeDeploy(&pCfg->mnodes);
 }
diff --git a/source/server/dnode/src/dnodeMnodeEps.c b/source/server/dnode/src/dnodeMnodeEps.c
index e072bb5bfdc59ee8184ce9731ff6519feb521f7a..ab5c76b5806ecc3cb75d15a2cdb22755d5ee0e1a 100644
--- a/source/server/dnode/src/dnodeMnodeEps.c
+++ b/source/server/dnode/src/dnodeMnodeEps.c
@@ -22,7 +22,7 @@
 #include "dnodeMnodeEps.h"
 #include "mnode.h"
 
-static void dnodePrintMnodeEps(DnMnEps *meps) {
+static void dnodePrintMnodeEps(SDnMnEps *meps) {
   SRpcEpSet *epset = &meps->mnodeEpSet;
   dInfo("print mnode eps, num:%d inuse:%d", epset->numOfEps, epset->inUse);
   for (int32_t i = 0; i < epset->numOfEps; i++) {
@@ -30,7 +30,7 @@ static void dnodePrintMnodeEps(DnMnEps *meps) {
   }
 }
 
-static void dnodeResetMnodeEps(DnMnEps *meps, SMInfos *mInfos) {
+static void dnodeResetMnodeEps(SDnMnEps *meps, SMInfos *mInfos) {
   if (mInfos == NULL || mInfos->mnodeNum == 0) {
     meps->mnodeEpSet.numOfEps = 1;
     taosGetFqdnPortFromEp(tsFirst, meps->mnodeEpSet.fqdn[0], &meps->mnodeEpSet.port[0]);
@@ -55,7 +55,7 @@ static void dnodeResetMnodeEps(DnMnEps *meps, SMInfos *mInfos) {
   dnodePrintMnodeEps(meps);
 }
 
-static int32_t dnodeWriteMnodeEps(DnMnEps *meps) {
+static int32_t dnodeWriteMnodeEps(SDnMnEps *meps) {
   FILE *fp = fopen(meps->file, "w");
   if (!fp) {
     dError("failed to write %s since %s", meps->file, strerror(errno));
@@ -91,7 +91,7 @@ static int32_t dnodeWriteMnodeEps(DnMnEps *meps) {
   return 0;
 }
 
-static int32_t dnodeReadMnodeEps(DnMnEps *meps, DnEps *deps) {
+static int32_t dnodeReadMnodeEps(SDnMnEps *meps, SDnEps *deps) {
   int32_t len = 0;
   int32_t maxLen = 2000;
   char *  content = calloc(1, maxLen + 1);
@@ -192,7 +192,7 @@ PARSE_MINFOS_OVER:
 }
 
 void dnodeSendRedirectMsg(SRpcMsg *rpcMsg, bool forShell) {
-  DnMnEps *meps = dnodeInst()->meps;
+  SDnMnEps *meps = dnodeInst()->meps;
   SRpcConnInfo connInfo = {0};
   rpcGetConnInfo(rpcMsg->handle, &connInfo);
 
@@ -222,8 +222,8 @@ void dnodeSendRedirectMsg(SRpcMsg *rpcMsg, bool forShell) {
   rpcSendRedirectRsp(rpcMsg->handle, &epSet);
 }
 
-int32_t dnodeInitMnodeEps(DnMnEps **out) {
-  DnMnEps *meps = calloc(1, sizeof(DnMnEps));
+int32_t dnodeInitMnodeEps(SDnMnEps **out) {
+  SDnMnEps *meps = calloc(1, sizeof(SDnMnEps));
   if (meps == NULL) return -1;
 
   snprintf(meps->file, sizeof(meps->file), "%s/mnodeEpSet.json", tsDnodeDir);
@@ -239,8 +239,8 @@ int32_t dnodeInitMnodeEps(DnMnEps **out) {
   return ret;
 }
 
-void dnodeCleanupMnodeEps(DnMnEps **out) {
-  DnMnEps *meps = *out;
+void dnodeCleanupMnodeEps(SDnMnEps **out) {
+  SDnMnEps *meps = *out;
   *out = NULL;
 
   if (meps != NULL) {
@@ -249,7 +249,7 @@ void dnodeCleanupMnodeEps(DnMnEps **out) {
   }
 }
 
-void dnodeUpdateMnodeFromStatus(DnMnEps *meps, SMInfos *mInfos) {
+void dnodeUpdateMnodeFromStatus(SDnMnEps *meps, SMInfos *mInfos) {
   if (mInfos->mnodeNum <= 0 || mInfos->mnodeNum > TSDB_MAX_REPLICA) {
     dError("invalid mInfos since num:%d invalid", mInfos->mnodeNum);
     return;
@@ -278,7 +278,7 @@ void dnodeUpdateMnodeFromStatus(DnMnEps *meps, SMInfos *mInfos) {
   pthread_mutex_unlock(&meps->mutex);
 }
 
-void dnodeUpdateMnodeFromPeer(DnMnEps *meps, SRpcEpSet *ep) {
+void dnodeUpdateMnodeFromPeer(SDnMnEps *meps, SRpcEpSet *ep) {
   if (ep->numOfEps <= 0) {
     dError("mInfos is changed, but content is invalid, discard it");
     return;
@@ -296,7 +296,7 @@ void dnodeUpdateMnodeFromPeer(DnMnEps *meps, SRpcEpSet *ep) {
   pthread_mutex_unlock(&meps->mutex);
 }
 
-void dnodeGetEpSetForPeer(DnMnEps *meps, SRpcEpSet *epSet) {
+void dnodeGetEpSetForPeer(SDnMnEps *meps, SRpcEpSet *epSet) {
   pthread_mutex_lock(&meps->mutex);
 
   *epSet = meps->mnodeEpSet;
@@ -307,7 +307,7 @@ void dnodeGetEpSetForPeer(DnMnEps *meps, SRpcEpSet *epSet) {
   pthread_mutex_unlock(&meps->mutex);
 }
 
-void dnodeGetEpSetForShell(DnMnEps *meps, SRpcEpSet *epSet) {
+void dnodeGetEpSetForShell(SDnMnEps *meps, SRpcEpSet *epSet) {
   pthread_mutex_lock(&meps->mutex);
 
   *epSet = meps->mnodeEpSet;
diff --git a/source/server/dnode/src/dnodeStatus.c b/source/server/dnode/src/dnodeStatus.c
index 308be7d1b67b498fbca241e48b8e65308a213d46..6abc886147ae4d98455e5dbe1305182703f9cf56 100644
--- a/source/server/dnode/src/dnodeStatus.c
+++ b/source/server/dnode/src/dnodeStatus.c
@@ -26,7 +26,7 @@
 #include "vnode.h"
 
 static void dnodeSendStatusMsg(void *handle, void *tmrId) {
-  DnStatus *status = handle;
+  SDnStatus *status = handle;
   if (status->dnodeTimer == NULL) {
     dError("dnode timer is already released");
     return;
@@ -46,7 +46,7 @@ static void dnodeSendStatusMsg(void *handle, void *tmrId) {
     return;
   }
 
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   dnodeGetCfg(dnode->cfg, &pStatus->dnodeId, pStatus->clusterId);
   pStatus->dnodeId = htonl(dnodeGetDnodeId(dnode->cfg));
   pStatus->version = htonl(tsVersion);
@@ -86,8 +86,8 @@ static void dnodeSendStatusMsg(void *handle, void *tmrId) {
 }
 
 void dnodeProcessStatusRsp(SRpcMsg *pMsg) {
-  Dnode *dnode = dnodeInst();
-  DnStatus *status = pMsg->ahandle;
+  SDnode *dnode = dnodeInst();
+  SDnStatus *status = pMsg->ahandle;
 
   if (pMsg->code != TSDB_CODE_SUCCESS) {
     dError("status rsp is received, error:%s", tstrerror(pMsg->code));
@@ -123,8 +123,8 @@ void dnodeProcessStatusRsp(SRpcMsg *pMsg) {
   taosTmrReset(dnodeSendStatusMsg, tsStatusInterval * 1000, status, status->dnodeTimer, &status->statusTimer);
 }
 
-int32_t dnodeInitStatus(DnStatus **out) {
-  DnStatus *status = calloc(1, sizeof(DnStatus));
+int32_t dnodeInitStatus(SDnStatus **out) {
+  SDnStatus *status = calloc(1, sizeof(SDnStatus));
   if (status == NULL) return -1;
   status->statusTimer = NULL;
   status->dnodeTimer = dnodeInst()->main->dnodeTimer;
@@ -135,8 +135,8 @@ int32_t dnodeInitStatus(DnStatus **out) {
   return TSDB_CODE_SUCCESS;
 }
 
-void dnodeCleanupStatus(DnStatus **out) {
-  DnStatus *status = *out;
+void dnodeCleanupStatus(SDnStatus **out) {
+  SDnStatus *status = *out;
   *out = NULL;
 
   if (status->statusTimer != NULL) {
diff --git a/source/server/dnode/src/dnodeTelem.c b/source/server/dnode/src/dnodeTelem.c
index 6b0bbfa6a0be4e2ad892aa6227c18a32fc9fa350..b221746c833b4f79401275745e1ae2c2b867a361 100644
--- a/source/server/dnode/src/dnodeTelem.c
+++ b/source/server/dnode/src/dnodeTelem.c
@@ -154,14 +154,14 @@ static void dnodeAddMemoryInfo(SBufferWriter* bw) {
   fclose(fp);
 }
 
-static void dnodeAddVersionInfo(DnTelem* telem, SBufferWriter* bw) {
+static void dnodeAddVersionInfo(SDnTelem* telem, SBufferWriter* bw) {
   dnodeAddStringField(bw, "version", version);
   dnodeAddStringField(bw, "buildInfo", buildinfo);
   dnodeAddStringField(bw, "gitInfo", gitinfo);
   dnodeAddStringField(bw, "email", telem->email);
 }
 
-static void dnodeAddRuntimeInfo(DnTelem* telem, SBufferWriter* bw) {
+static void dnodeAddRuntimeInfo(SDnTelem* telem, SBufferWriter* bw) {
   SMnodeStat stat = {0};
   if (mnodeGetStatistics(&stat) != 0) {
     return;
@@ -179,7 +179,7 @@ static void dnodeAddRuntimeInfo(DnTelem* telem, SBufferWriter* bw) {
   dnodeAddIntField(bw, "compStorage", stat.compStorage);
 }
 
-static void dnodeSendTelemetryReport(DnTelem* telem) {
+static void dnodeSendTelemetryReport(SDnTelem* telem) {
   char     buf[128] = {0};
   uint32_t ip = taosGetIpv4FromFqdn(TELEMETRY_SERVER);
   if (ip == 0xffffffff) {
@@ -192,7 +192,7 @@ static void dnodeSendTelemetryReport(DnTelem* telem) {
     return;
   }
 
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   SBufferWriter bw = tbufInitWriter(NULL, false);
   dnodeBeginObject(&bw);
   dnodeAddStringField(&bw, "instanceId", dnode->cfg->clusterId);
@@ -227,7 +227,7 @@ static void dnodeSendTelemetryReport(DnTelem* telem) {
 }
 
 static void* dnodeTelemThreadFp(void* param) {
-  DnTelem* telem = param;
+  SDnTelem* telem = param;
 
   struct timespec end = {0};
   clock_gettime(CLOCK_REALTIME, &end);
@@ -253,7 +253,7 @@ static void* dnodeTelemThreadFp(void* param) {
   return NULL;
 }
 
-static void dnodeGetEmail(DnTelem* telem, char* filepath) {
+static void dnodeGetEmail(SDnTelem* telem, char* filepath) {
   int32_t fd = taosOpenFileRead(filepath);
   if (fd < 0) {
     return;
@@ -266,8 +266,8 @@ static void dnodeGetEmail(DnTelem* telem, char* filepath) {
   taosCloseFile(fd);
 }
 
-int32_t dnodeInitTelem(DnTelem** out) {
-  DnTelem* telem = calloc(1, sizeof(DnTelem));
+int32_t dnodeInitTelem(SDnTelem** out) {
+  SDnTelem* telem = calloc(1, sizeof(SDnTelem));
   if (telem == NULL) return -1;
 
   telem->enable = tsEnableTelemetryReporting;
@@ -296,8 +296,8 @@ int32_t dnodeInitTelem(DnTelem** out) {
   return 0;
 }
 
-void dnodeCleanupTelem(DnTelem** out) {
-  DnTelem* telem = *out;
+void dnodeCleanupTelem(SDnTelem** out) {
+  SDnTelem* telem = *out;
   *out = NULL;
 
   if (!telem->enable) {
diff --git a/source/server/dnode/src/dnodeTrans.c b/source/server/dnode/src/dnodeTrans.c
index c6139101bb0d74da1c70628fa881c490a85be43c..7a870f22c85ed59c10401e98d57e9324d81f0193 100644
--- a/source/server/dnode/src/dnodeTrans.c
+++ b/source/server/dnode/src/dnodeTrans.c
@@ -14,7 +14,7 @@
  */
 
 /* this file is mainly responsible for the communication between DNODEs. Each 
- * dnode works as both server and client. Dnode may send status, grant, config
+ * dnode works as both server and client. SDnode may send status, grant, config
  * messages to mnode, mnode may send create/alter/drop table/vnode messages 
  * to dnode. All theses messages are handled from here
  */
@@ -30,7 +30,7 @@
 #include "mnode.h"
 
 static void dnodeProcessPeerReq(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
-  Dnode * dnode = dnodeInst();
+  SDnode * dnode = dnodeInst();
   SRpcMsg rspMsg = {.handle = pMsg->handle, .pCont = NULL, .contLen = 0};
 
   if (pMsg->pCont == NULL) return;
@@ -64,7 +64,7 @@ static void dnodeProcessPeerReq(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
   }
 }
 
-int32_t dnodeInitServer(DnTrans *trans) {
+int32_t dnodeInitServer(SDnTrans *trans) {
   trans->peerMsgFp[TSDB_MSG_TYPE_MD_CREATE_TABLE]  = vnodeProcessMsg;
   trans->peerMsgFp[TSDB_MSG_TYPE_MD_DROP_TABLE]    = vnodeProcessMsg;
   trans->peerMsgFp[TSDB_MSG_TYPE_MD_ALTER_TABLE]   = vnodeProcessMsg;
@@ -106,7 +106,7 @@ int32_t dnodeInitServer(DnTrans *trans) {
   return 0;
 }
 
-void dnodeCleanupServer(DnTrans *trans) {
+void dnodeCleanupServer(SDnTrans *trans) {
   if (trans->serverRpc) {
     rpcClose(trans->serverRpc);
     trans->serverRpc = NULL;
@@ -115,7 +115,7 @@ void dnodeCleanupServer(DnTrans *trans) {
 }
 
 static void dnodeProcessRspFromPeer(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   if (dnode->main->runStatus == TD_RUN_STAT_STOPPED) {
     if (pMsg == NULL || pMsg->pCont == NULL) return;
     dTrace("msg:%p is ignored since dnode is stopping", pMsg);
@@ -141,7 +141,7 @@ static void dnodeProcessRspFromPeer(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
   rpcFreeCont(pMsg->pCont);
 }
 
-int32_t dnodeInitClient(DnTrans *trans) {
+int32_t dnodeInitClient(SDnTrans *trans) {
   trans->peerMsgFp[TSDB_MSG_TYPE_MD_CREATE_TABLE_RSP]  = mnodeProcessMsg;
   trans->peerMsgFp[TSDB_MSG_TYPE_MD_DROP_TABLE_RSP]    = mnodeProcessMsg;
   trans->peerMsgFp[TSDB_MSG_TYPE_MD_ALTER_TABLE_RSP]   = mnodeProcessMsg;
@@ -186,7 +186,7 @@ int32_t dnodeInitClient(DnTrans *trans) {
   return 0;
 }
 
-void dnodeCleanupClient(DnTrans *trans) {
+void dnodeCleanupClient(SDnTrans *trans) {
   if (trans->clientRpc) {
     rpcClose(trans->clientRpc);
     trans->clientRpc = NULL;
@@ -195,7 +195,7 @@ void dnodeCleanupClient(DnTrans *trans) {
 }
 
 static void dnodeProcessMsgFromShell(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
-  Dnode * dnode = dnodeInst();
+  SDnode * dnode = dnodeInst();
   SRpcMsg rpcMsg = {.handle = pMsg->handle, .pCont = NULL, .contLen = 0};
 
   if (pMsg->pCont == NULL) return;
@@ -213,7 +213,7 @@ static void dnodeProcessMsgFromShell(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
     return;
   }
 
-  DnTrans *trans = dnode->trans;
+  SDnTrans *trans = dnode->trans;
   if (pMsg->msgType == TSDB_MSG_TYPE_QUERY) {
     atomic_fetch_add_32(&trans->queryReqNum, 1);
   } else if (pMsg->msgType == TSDB_MSG_TYPE_SUBMIT) {
@@ -247,26 +247,26 @@ static int32_t dnodeAuthNetTest(char *user, char *spi, char *encrypt, char *secr
 }
 
 void dnodeSendMsgToDnode(SRpcEpSet *epSet, SRpcMsg *rpcMsg) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   rpcSendRequest(dnode->trans->clientRpc, epSet, rpcMsg, NULL);
 }
 
 void dnodeSendMsgToMnode(SRpcMsg *rpcMsg) {
-  Dnode *   dnode = dnodeInst();
+  SDnode *   dnode = dnodeInst();
   SRpcEpSet epSet = {0};
   dnodeGetEpSetForPeer(dnode->meps, &epSet);
   dnodeSendMsgToDnode(&epSet, rpcMsg);
 }
 
 void dnodeSendMsgToMnodeRecv(SRpcMsg *rpcMsg, SRpcMsg *rpcRsp) {
-  Dnode *   dnode = dnodeInst();
+  SDnode *   dnode = dnodeInst();
   SRpcEpSet epSet = {0};
   dnodeGetEpSetForPeer(dnode->meps, &epSet);
   rpcSendRecv(dnode->trans->clientRpc, &epSet, rpcMsg, rpcRsp);
 }
 
 void dnodeSendMsgToDnodeRecv(SRpcMsg *rpcMsg, SRpcMsg *rpcRsp, SRpcEpSet *epSet) {
-  Dnode *dnode = dnodeInst();
+  SDnode *dnode = dnodeInst();
   rpcSendRecv(dnode->trans->clientRpc, epSet, rpcMsg, rpcRsp);
 }
 
@@ -303,7 +303,7 @@ static int32_t dnodeRetrieveUserAuthInfo(char *user, char *spi, char *encrypt, c
   return rpcRsp.code;
 }
 
-int32_t dnodeInitShell(DnTrans *trans) {
+int32_t dnodeInitShell(SDnTrans *trans) {
   trans->shellMsgFp[TSDB_MSG_TYPE_SUBMIT] = vnodeProcessMsg;
   trans->shellMsgFp[TSDB_MSG_TYPE_QUERY]  = vnodeProcessMsg;
   trans->shellMsgFp[TSDB_MSG_TYPE_FETCH]  = vnodeProcessMsg;
@@ -376,15 +376,15 @@ int32_t dnodeInitShell(DnTrans *trans) {
   return 0;
 }
 
-void dnodeCleanupShell(DnTrans *trans) {
+void dnodeCleanupShell(SDnTrans *trans) {
   if (trans->shellRpc) {
     rpcClose(trans->shellRpc);
     trans->shellRpc = NULL;
   }
 }
 
-int32_t dnodeInitTrans(DnTrans **out) {
-  DnTrans *trans = calloc(1, sizeof(DnTrans));
+int32_t dnodeInitTrans(SDnTrans **out) {
+  SDnTrans *trans = calloc(1, sizeof(SDnTrans));
   if (trans == NULL) return -1;
 
   *out = trans;
@@ -404,8 +404,8 @@ int32_t dnodeInitTrans(DnTrans **out) {
   return 0;
 }
 
-void dnodeCleanupTrans(DnTrans **out) {
-  DnTrans* trans = *out;
+void dnodeCleanupTrans(SDnTrans **out) {
+  SDnTrans* trans = *out;
   *out = NULL;
 
   dnodeCleanupShell(trans);