Merge pull request #4277 from taosdata/feature/wal

[TD-2083]<fix>: synchronization may fail when creating a table

src/sync/inc/syncInt.h

@@ -106,7 +106,7 @@ typedef struct {
   int8_t    nacks;
   int8_t    confirmed;
   int32_t   code;
-  uint64_t  time;
+  int64_t   time;
 } SFwdInfo;
 
 typedef struct {

src/sync/src/syncMain.c

@@ -1204,14 +1204,17 @@ static void syncMonitorFwdInfos(void *param, void *tmrId) {
 
   SSyncFwds *pSyncFwds = pNode->pSyncFwds;
 
-  if (pSyncFwds) {;
-    uint64_t   time = taosGetTimestampMs();
+  if (pSyncFwds) {
+    int64_t time = taosGetTimestampMs();
 
     if (pSyncFwds->fwds > 0) {
       pthread_mutex_lock(&(pNode->mutex));
       for (int32_t i = 0; i < pSyncFwds->fwds; ++i) {
         SFwdInfo *pFwdInfo = pSyncFwds->fwdInfo + (pSyncFwds->first + i) % tsMaxFwdInfo;
-        if (time - pFwdInfo->time < 2000) break;
+        if (ABS(time - pFwdInfo->time) < 2000) break;
+
+        sDebug("vgId:%d, forward info expired, hver:%" PRIu64 " curtime:%" PRIu64 " savetime:%" PRIu64, pNode->vgId,
+               pFwdInfo->version, time, pFwdInfo->time);
         syncProcessFwdAck(pNode, pFwdInfo, TSDB_CODE_RPC_NETWORK_UNAVAIL);
       }