diff --git a/src/sync/src/syncMain.c b/src/sync/src/syncMain.c
index 4281d85386323e5c581e2698b1875f3df826b855..843de9461fd956f0602a0d0dce9aca7fb219d42f 100644
--- a/src/sync/src/syncMain.c
+++ b/src/sync/src/syncMain.c
@@ -820,7 +820,7 @@ static void syncProcessSyncRequest(char *msg, SSyncPeer *pPeer) {
   pthread_attr_destroy(&thattr);
 
   if (ret != 0) {
-    sError("%s, failed to create sync thread(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to create sync thread since %s", pPeer->id, strerror(errno));
     syncDecPeerRef(pPeer);
   } else {
     pPeer->sstatus = TAOS_SYNC_STATUS_START;
@@ -1105,7 +1105,7 @@ static void syncProcessIncommingConnection(int32_t connFd, uint32_t sourceIp) {
 
   SFirstPkt firstPkt;
   if (taosReadMsg(connFd, &firstPkt, sizeof(firstPkt)) != sizeof(firstPkt)) {
-    sError("failed to read peer first pkt from ip:%s(%s)", ipstr, strerror(errno));
+    sError("failed to read peer first pkt from ip:%s since %s", ipstr, strerror(errno));
     taosCloseSocket(connFd);
     return;
   }
@@ -1159,7 +1159,7 @@ static void syncProcessBrokenLink(void *param) {
   if (taosAcquireRef(tsSyncRefId, pNode->rid) == NULL) return;
   pthread_mutex_lock(&(pNode->mutex));
 
-  sDebug("%s, TCP link is broken(%s)", pPeer->id, strerror(errno));
+  sDebug("%s, TCP link is broken since %s", pPeer->id, strerror(errno));
   pPeer->peerFd = -1;
 
   if (syncDecPeerRef(pPeer) != 0) {
@@ -1242,9 +1242,10 @@ static void syncMonitorNodeRole(void *param, void *tmrId) {
     if (index == pNode->selfIndex) continue;
 
     SSyncPeer *pPeer = pNode->peerInfo[index];
-    if (pPeer->role <= TAOS_SYNC_ROLE_UNSYNCED || nodeRole <= TAOS_SYNC_ROLE_UNSYNCED) {
-      syncSendPeersStatusMsgToPeer(pPeer, 1, SYNC_STATUS_CHECK_ROLE, syncGenTranId());
-    }
+    if (pPeer->role > TAOS_SYNC_ROLE_UNSYNCED && nodeRole > TAOS_SYNC_ROLE_UNSYNCED) continue;
+    if (pPeer->sstatus > TAOS_SYNC_STATUS_INIT || nodeSStatus > TAOS_SYNC_STATUS_INIT) continue;
+
+    syncSendPeersStatusMsgToPeer(pPeer, 1, SYNC_STATUS_CHECK_ROLE, syncGenTranId());
   }
 
   pNode->pRoleTimer = taosTmrStart(syncMonitorNodeRole, SYNC_ROLE_TIMER, (void *)pNode->rid, tsSyncTmrCtrl);
diff --git a/src/sync/src/syncRestore.c b/src/sync/src/syncRestore.c
index ebf1e91d90e0329f4db94f0fb724d70e79a77314..cc2315fb15c6845a763a95928f5e66b13bbbca40 100644
--- a/src/sync/src/syncRestore.c
+++ b/src/sync/src/syncRestore.c
@@ -15,6 +15,7 @@
 
 #define _DEFAULT_SOURCE
 #include "os.h"
+#include "taoserror.h"
 #include "tlog.h"
 #include "tutil.h"
 #include "ttimer.h"
@@ -127,7 +128,7 @@ static int32_t syncRestoreFile(SSyncPeer *pPeer, uint64_t *fversion) {
   }
 
   if (code < 0) {
-    sError("%s, failed to restore %s(%s)", pPeer->id, name, strerror(errno));
+    sError("%s, failed to restore %s since %s", pPeer->id, name, strerror(errno));
   }
 
   return code;
@@ -167,7 +168,7 @@ static int32_t syncRestoreWal(SSyncPeer *pPeer) {
   }
 
   if (code < 0) {
-    sError("%s, failed to restore wal(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to restore wal from syncFd:%d since %s", pPeer->id, pPeer->syncFd, strerror(errno));
   }
 
   free(buffer);
diff --git a/src/sync/src/syncRetrieve.c b/src/sync/src/syncRetrieve.c
index c02bcbe11da598efadb025958b08f6ceca58c168..82f40854e8fc85632274f4566450963c03e40680 100644
--- a/src/sync/src/syncRetrieve.c
+++ b/src/sync/src/syncRetrieve.c
@@ -32,7 +32,7 @@ static int32_t syncAddIntoWatchList(SSyncPeer *pPeer, char *name) {
     pPeer->watchNum = 0;
     pPeer->notifyFd = inotify_init1(IN_NONBLOCK);
     if (pPeer->notifyFd < 0) {
-      sError("%s, failed to init inotify(%s)", pPeer->id, strerror(errno));
+      sError("%s, failed to init inotify since %s", pPeer->id, strerror(errno));
       return -1;
     }
 
@@ -49,14 +49,14 @@ static int32_t syncAddIntoWatchList(SSyncPeer *pPeer, char *name) {
 
   if (*wd >= 0) {
     if (inotify_rm_watch(pPeer->notifyFd, *wd) < 0) {
-      sError("%s, failed to remove wd:%d(%s)", pPeer->id, *wd, strerror(errno));
+      sError("%s, failed to remove wd:%d since %s", pPeer->id, *wd, strerror(errno));
       return -1;
     }
   }
 
   *wd = inotify_add_watch(pPeer->notifyFd, name, IN_MODIFY | IN_DELETE);
   if (*wd == -1) {
-    sError("%s, failed to add %s(%s)", pPeer->id, name, strerror(errno));
+    sError("%s, failed to add %s since %s", pPeer->id, name, strerror(errno));
     return -1;
   } else {
     sDebug("%s, monitor %s, wd:%d watchNum:%d", pPeer->id, name, *wd, pPeer->watchNum);
@@ -73,7 +73,7 @@ static int32_t syncAreFilesModified(SSyncPeer *pPeer) {
   char    buf[2048];
   int32_t len = read(pPeer->notifyFd, buf, sizeof(buf));
   if (len < 0 && errno != EAGAIN) {
-    sError("%s, failed to read notify FD(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to read notify FD since %s", pPeer->id, strerror(errno));
     return -1;
   }
 
@@ -159,7 +159,7 @@ static int32_t syncRetrieveFile(SSyncPeer *pPeer) {
   }
 
   if (code < 0) {
-    sError("%s, failed to retrieve file(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to retrieve file since %s", pPeer->id, strerror(errno));
   }
 
   return code;
@@ -199,7 +199,7 @@ static int32_t syncMonitorLastWal(SSyncPeer *pPeer, char *name) {
   taosClose(pPeer->notifyFd);
   pPeer->notifyFd = inotify_init1(IN_NONBLOCK);
   if (pPeer->notifyFd < 0) {
-    sError("%s, failed to init inotify(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to init inotify since %s", pPeer->id, strerror(errno));
     return -1;
   }
 
@@ -214,7 +214,7 @@ static int32_t syncMonitorLastWal(SSyncPeer *pPeer, char *name) {
 
   *wd = inotify_add_watch(pPeer->notifyFd, name, IN_MODIFY | IN_CLOSE_WRITE);
   if (*wd == -1) {
-    sError("%s, failed to watch last wal(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to watch last wal since %s", pPeer->id, strerror(errno));
     return -1;
   }
 
@@ -225,7 +225,7 @@ static int32_t syncCheckLastWalChanges(SSyncPeer *pPeer, uint32_t *pEvent) {
   char    buf[2048];
   int32_t len = read(pPeer->notifyFd, buf, sizeof(buf));
   if (len < 0 && errno != EAGAIN) {
-    sError("%s, failed to read notify FD(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to read notify FD since %s", pPeer->id, strerror(errno));
     return -1;
   }
 
@@ -422,7 +422,7 @@ static int32_t syncRetrieveWal(SSyncPeer *pPeer) {
     memset(&walHead, 0, sizeof(walHead));
     code = taosWriteMsg(pPeer->syncFd, &walHead, sizeof(walHead));
   } else {
-    sError("%s, failed to send wal(%s)", pPeer->id, strerror(errno));
+    sError("%s, failed to send wal since %s", pPeer->id, strerror(errno));
   }
 
   return code;
diff --git a/src/sync/src/tarbitrator.c b/src/sync/src/tarbitrator.c
index b7f819a3cd8f890d3580352322d8313f7cb2828e..4016042de2135f732dfeb2bbc3b0fdc65b1b63f6 100644
--- a/src/sync/src/tarbitrator.c
+++ b/src/sync/src/tarbitrator.c
@@ -115,14 +115,14 @@ static void arbProcessIncommingConnection(int32_t connFd, uint32_t sourceIp) {
 
   SFirstPkt firstPkt;
   if (taosReadMsg(connFd, &firstPkt, sizeof(firstPkt)) != sizeof(firstPkt)) {
-    sError("failed to read peer first pkt from ip:%s(%s)", ipstr, strerror(errno));
+    sError("failed to read peer first pkt from ip:%s since %s", ipstr, strerror(errno));
     taosCloseSocket(connFd);
     return;
   }
 
-  SNodeConn *pNode = (SNodeConn *)calloc(sizeof(SNodeConn), 1);
+  SNodeConn *pNode = calloc(sizeof(SNodeConn), 1);
   if (pNode == NULL) {
-    sError("failed to allocate memory(%s)", strerror(errno));
+    sError("failed to allocate memory since %s", strerror(errno));
     taosCloseSocket(connFd);
     return;
   }
@@ -146,7 +146,7 @@ static void arbProcessIncommingConnection(int32_t connFd, uint32_t sourceIp) {
 static void arbProcessBrokenLink(void *param) {
   SNodeConn *pNode = param;
 
-  sDebug("%s, TCP link is broken(%s), close connection", pNode->id, strerror(errno));
+  sDebug("%s, TCP link is broken since %s, close connection", pNode->id, strerror(errno));
   tfree(pNode);
 }