diff --git a/src/common/inc/tglobal.h b/src/common/inc/tglobal.h
index 88240f85edf8478e63168d0c2ad25fc5f98ee3ca..47460a5fab34289e5534fc753ff4b4bd86452d65 100644
--- a/src/common/inc/tglobal.h
+++ b/src/common/inc/tglobal.h
@@ -39,6 +39,7 @@ extern int8_t   tsEnableTelemetryReporting;
 extern char     tsEmail[];
 extern char     tsArbitrator[];
 extern int8_t   tsArbOnline;
+extern int64_t  tsArbOnlineTimestamp;
 extern int32_t  tsDnodeId;
 
 // common
diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index f8127b24b9c5d41a62242faf843d117b1a054a20..eae2fab32b892bdc9ede258467217df0d82eccea 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -42,6 +42,7 @@ int32_t  tsNumOfMnodes = 3;
 int8_t   tsEnableVnodeBak = 1;
 int8_t   tsEnableTelemetryReporting = 1;
 int8_t   tsArbOnline = 0;
+int64_t  tsArbOnlineTimestamp = TSDB_ARB_DUMMY_TIME;
 char     tsEmail[TSDB_FQDN_LEN] = {0};
 int32_t  tsDnodeId = 0;
 
diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 5bdd197aa9a76a72e5194f2c1591e52f47706dfb..e6eec73681dbde6c4c5b18f7b7c0351d40f7d134 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -375,6 +375,8 @@ do { \
 
 #define TSDB_MAX_WAL_SIZE    (1024*1024*3)
 
+#define TSDB_ARB_DUMMY_TIME                    4765104000000 // 2121-01-01 00:00:00.000, :P
+
 typedef enum {
   TAOS_QTYPE_RPC   = 0,
   TAOS_QTYPE_FWD   = 1,
diff --git a/src/mnode/src/mnodeDnode.c b/src/mnode/src/mnodeDnode.c
index 51f16e4bc63e8b12ac31c3e1ad9ac605b72c56ca..7702978af19f192ec9ec1ee4a7cda6df24db1f20 100644
--- a/src/mnode/src/mnodeDnode.c
+++ b/src/mnode/src/mnodeDnode.c
@@ -941,7 +941,7 @@ static int32_t mnodeRetrieveDnodes(SShowObj *pShow, char *data, int32_t rows, vo
     cols++;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    *(int64_t *)pWrite = 0;
+    *(int64_t *)pWrite = tsArbOnlineTimestamp;
     cols++;
 
     pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
diff --git a/src/sync/src/syncMain.c b/src/sync/src/syncMain.c
index 493d5f117ac4d213da2703ed60825209f19f46b4..d34536543c32dd8129375cc93902648e9566239a 100644
--- a/src/sync/src/syncMain.c
+++ b/src/sync/src/syncMain.c
@@ -1150,7 +1150,12 @@ static void syncSetupPeerConnection(SSyncPeer *pPeer) {
     pPeer->peerFd = connFd;
     pPeer->role = TAOS_SYNC_ROLE_UNSYNCED;
     pPeer->pConn = syncAllocateTcpConn(tsTcpPool, pPeer->rid, connFd);
-    if (pPeer->isArb) tsArbOnline = 1;
+    if (pPeer->isArb) {
+      tsArbOnline = 1;
+      if (tsArbOnlineTimestamp == TSDB_ARB_DUMMY_TIME) {
+        tsArbOnlineTimestamp = taosGetTimestampMs();
+      }
+    }
   } else {
     sDebug("%s, failed to setup peer connection to server since %s, try later", pPeer->id, strerror(errno));
     taosCloseSocket(connFd);