diff --git a/source/libs/parser/src/parAstCreater.c b/source/libs/parser/src/parAstCreater.c
index eed6391d5c..1e51288e02 100644
--- a/source/libs/parser/src/parAstCreater.c
+++ b/source/libs/parser/src/parAstCreater.c
@@ -892,7 +892,7 @@ SDataType createDataType(uint8_t type) {
 }
 
 SDataType createVarLenDataType(uint8_t type, const SToken* pLen) {
-  SDataType dt = { .type = type, .precision = 0, .scale = 0, .bytes = tDataTypes[type].bytes };
+  SDataType dt = { .type = type, .precision = 0, .scale = 0, .bytes = strtol(pLen->z, NULL, 10) };
   return dt;
 }
 
diff --git a/source/libs/sync/inc/syncEnv.h b/source/libs/sync/inc/syncEnv.h
index 66c7c8620d..7940d7f436 100644
--- a/source/libs/sync/inc/syncEnv.h
+++ b/source/libs/sync/inc/syncEnv.h
@@ -31,10 +31,10 @@ extern "C" {
 #define TIMER_MAX_MS 0x7FFFFFFF
 #define ENV_TICK_TIMER_MS 1000
 #define PING_TIMER_MS 1000
-#define ELECT_TIMER_MS_MIN 1500
-#define ELECT_TIMER_MS_MAX 3000
+#define ELECT_TIMER_MS_MIN 150
+#define ELECT_TIMER_MS_MAX (ELECT_TIMER_MS_MIN * 2)
 #define ELECT_TIMER_MS_RANGE (ELECT_TIMER_MS_MAX - ELECT_TIMER_MS_MIN)
-#define HEARTBEAT_TIMER_MS 300
+#define HEARTBEAT_TIMER_MS 30
 
 #define EMPTY_RAFT_ID ((SRaftId){.addr = 0, .vgId = 0})
 
diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index eaf4d56f67..cfa87048a7 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -160,6 +160,11 @@ typedef struct SSyncNode {
   SSyncLogStore* pLogStore;
   SyncIndex      commitIndex;
 
+  // timer ms init
+  int32_t pingBaseLine;
+  int32_t electBaseLine;
+  int32_t hbBaseLine;
+
   // ping timer
   tmr_h             pPingTimer;
   int32_t           pingTimerMS;
diff --git a/source/libs/sync/inc/syncUtil.h b/source/libs/sync/inc/syncUtil.h
index 1b702c2528..a4bb11afc6 100644
--- a/source/libs/sync/inc/syncUtil.h
+++ b/source/libs/sync/inc/syncUtil.h
@@ -44,7 +44,7 @@ void syncUtilbufCopyDeep(const SSyncBuffer* src, SSyncBuffer* dest);
 
 // ---- misc ----
 int32_t     syncUtilRand(int32_t max);
-int32_t     syncUtilElectRandomMS();
+int32_t     syncUtilElectRandomMS(int32_t min, int32_t max);
 int32_t     syncUtilQuorum(int32_t replicaNum);
 cJSON*      syncUtilNodeInfo2Json(const SNodeInfo* p);
 cJSON*      syncUtilRaftId2Json(const SRaftId* p);
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index facb0180f9..b92317ef3f 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -242,9 +242,14 @@ SSyncNode* syncNodeOpen(const SSyncInfo* pSyncInfo) {
   assert(pSyncNode->pLogStore != NULL);
   pSyncNode->commitIndex = SYNC_INDEX_INVALID;
 
+  // timer ms init
+  pSyncNode->pingBaseLine = PING_TIMER_MS;
+  pSyncNode->electBaseLine = ELECT_TIMER_MS_MIN;
+  pSyncNode->hbBaseLine = HEARTBEAT_TIMER_MS;
+
   // init ping timer
   pSyncNode->pPingTimer = NULL;
-  pSyncNode->pingTimerMS = PING_TIMER_MS;
+  pSyncNode->pingTimerMS = pSyncNode->pingBaseLine;
   atomic_store_64(&pSyncNode->pingTimerLogicClock, 0);
   atomic_store_64(&pSyncNode->pingTimerLogicClockUser, 0);
   pSyncNode->FpPingTimerCB = syncNodeEqPingTimer;
@@ -252,7 +257,7 @@ SSyncNode* syncNodeOpen(const SSyncInfo* pSyncInfo) {
 
   // init elect timer
   pSyncNode->pElectTimer = NULL;
-  pSyncNode->electTimerMS = syncUtilElectRandomMS();
+  pSyncNode->electTimerMS = syncUtilElectRandomMS(pSyncNode->electBaseLine, 2 * pSyncNode->electBaseLine);
   atomic_store_64(&pSyncNode->electTimerLogicClock, 0);
   atomic_store_64(&pSyncNode->electTimerLogicClockUser, 0);
   pSyncNode->FpElectTimerCB = syncNodeEqElectTimer;
@@ -260,7 +265,7 @@ SSyncNode* syncNodeOpen(const SSyncInfo* pSyncInfo) {
 
   // init heartbeat timer
   pSyncNode->pHeartbeatTimer = NULL;
-  pSyncNode->heartbeatTimerMS = HEARTBEAT_TIMER_MS;
+  pSyncNode->heartbeatTimerMS = pSyncNode->hbBaseLine;
   atomic_store_64(&pSyncNode->heartbeatTimerLogicClock, 0);
   atomic_store_64(&pSyncNode->heartbeatTimerLogicClockUser, 0);
   pSyncNode->FpHeartbeatTimerCB = syncNodeEqHeartbeatTimer;
@@ -394,7 +399,7 @@ int32_t syncNodeRestartElectTimer(SSyncNode* pSyncNode, int32_t ms) {
 
 int32_t syncNodeResetElectTimer(SSyncNode* pSyncNode) {
   int32_t ret = 0;
-  int32_t electMS = syncUtilElectRandomMS();
+  int32_t electMS = syncUtilElectRandomMS(pSyncNode->electBaseLine, 2 * pSyncNode->electBaseLine);
   ret = syncNodeRestartElectTimer(pSyncNode, electMS);
   return ret;
 }
@@ -763,7 +768,7 @@ static void syncNodeEqElectTimer(void* param, void* tmrId) {
     syncTimeoutDestroy(pSyncMsg);
 
     // reset timer ms
-    pSyncNode->electTimerMS = syncUtilElectRandomMS();
+    pSyncNode->electTimerMS = syncUtilElectRandomMS(pSyncNode->electBaseLine, 2 * pSyncNode->electBaseLine);
     taosTmrReset(syncNodeEqPingTimer, pSyncNode->pingTimerMS, pSyncNode, gSyncEnv->pTimerManager,
                  &pSyncNode->pPingTimer);
   } else {
diff --git a/source/libs/sync/src/syncUtil.c b/source/libs/sync/src/syncUtil.c
index 9486405331..8fc17ccb51 100644
--- a/source/libs/sync/src/syncUtil.c
+++ b/source/libs/sync/src/syncUtil.c
@@ -96,7 +96,10 @@ void syncUtilbufCopyDeep(const SSyncBuffer* src, SSyncBuffer* dest) {
 
 int32_t syncUtilRand(int32_t max) { return taosRand() % max; }
 
-int32_t syncUtilElectRandomMS() { return ELECT_TIMER_MS_MIN + syncUtilRand(ELECT_TIMER_MS_RANGE); }
+int32_t syncUtilElectRandomMS(int32_t min, int32_t max) {
+  assert(min > 0 && max > 0 && max >= min);
+  return min + syncUtilRand(max - min);
+}
 
 int32_t syncUtilQuorum(int32_t replicaNum) { return replicaNum / 2 + 1; }
 
diff --git a/source/libs/sync/test/syncUtilTest.cpp b/source/libs/sync/test/syncUtilTest.cpp
index 663db3a7b3..ae2afd2f53 100644
--- a/source/libs/sync/test/syncUtilTest.cpp
+++ b/source/libs/sync/test/syncUtilTest.cpp
@@ -16,7 +16,7 @@ void logTest() {
 
 void electRandomMSTest() {
   for (int i = 0; i < 10; ++i) {
-    int32_t ms = syncUtilElectRandomMS();
+    int32_t ms = syncUtilElectRandomMS(150, 300);
     printf("syncUtilElectRandomMS: %d \n", ms);
   }
 }