refactor(sync): add log

source/libs/sync/src/syncMain.c

@@ -35,7 +35,7 @@
 #include "syncVoteMgr.h"
 #include "tref.h"
 
-bool gRaftDetailLog = false;
+bool gRaftDetailLog = true;
 
 static int32_t tsNodeRefId = -1;
 
@@ -1155,6 +1155,8 @@ void syncNodeUpdateTerm(SSyncNode* pSyncNode, SyncTerm term) {
 }
 
 void syncNodeBecomeFollower(SSyncNode* pSyncNode) {
+  sInfo("sync event become follower");
+
   // maybe clear leader cache
   if (pSyncNode->state == TAOS_SYNC_STATE_LEADER) {
     pSyncNode->leaderCache = EMPTY_RAFT_ID;
@@ -1187,6 +1189,8 @@ void syncNodeBecomeFollower(SSyncNode* pSyncNode) {
 //     /\ UNCHANGED <<messages, currentTerm, votedFor, candidateVars, logVars>>
 //
 void syncNodeBecomeLeader(SSyncNode* pSyncNode) {
+  sInfo("sync event become leader");
+
   // state change
   pSyncNode->state = TAOS_SYNC_STATE_LEADER;
 

source/libs/sync/src/syncRaftLog.c

@@ -14,6 +14,7 @@
  */
 
 #include "syncRaftLog.h"
+#include "syncRaftCfg.h"
 #include "wal.h"
 
 // refactor, log[0 .. n] ==> log[m .. n]
@@ -161,7 +162,9 @@ static int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncRaftEntr
 
   walFsync(pWal, true);
 
-  sTrace("sync event write index:%" PRId64, pEntry->index);
+  sTrace("sync event write index:%ld, %s, isStandBy:%d, msgType:%s, originalRpcType:%s", pEntry->index,
+         syncUtilState2String(pData->pSyncNode->state), pData->pSyncNode->pRaftCfg->isStandBy,
+         TMSG_INFO(pEntry->msgType), TMSG_INFO(pEntry->originalRpcType));
 
   return code;
 }