sync: fix some issues

chain/sync.go

@@ -429,6 +429,10 @@ func (syncer *Syncer) Sync(ctx context.Context, maybeHead *types.TipSet) error {
 		)
 	}
 
+	if syncer.store.GetHeaviestTipSet().ParentWeight().GreaterThan(maybeHead.ParentWeight()) {
+		return nil
+	}
+
 	if syncer.Genesis.Equals(maybeHead) || syncer.store.GetHeaviestTipSet().Equals(maybeHead) {
 		return nil
 	}

cli/sync.go

@@ -41,14 +41,20 @@ var syncStatusCmd = &cli.Command{
 		for i, ss := range state.ActiveSyncs {
 			fmt.Printf("worker %d:\n", i)
 			var base, target []cid.Cid
+			var heightDiff int64
 			if ss.Base != nil {
 				base = ss.Base.Cids()
+				heightDiff = int64(ss.Base.Height())
 			}
 			if ss.Target != nil {
 				target = ss.Target.Cids()
+				heightDiff = int64(ss.Target.Height()) - heightDiff
+			} else {
+				heightDiff = 0
 			}
 			fmt.Printf("\tBase:\t%s\n", base)
 			fmt.Printf("\tTarget:\t%s\n", target)
+			fmt.Printf("\tHeight diff:\t%d\n", heightDiff)
 			fmt.Printf("\tStage: %s\n", chain.SyncStageString(ss.Stage))
 			fmt.Printf("\tHeight: %d\n", ss.Height)
 		}

cmd/lotus-storage-miner/run.go

@@ -56,6 +56,10 @@ var runCmd = &cli.Command{
 			return err
 		}
 
+		if v.APIVersion != build.APIVersion {
+			return xerrors.Errorf("lotus-daemon API version doesn't match: local: ", api.Version{APIVersion: build.APIVersion})
+		}
+
 		storageRepoPath := cctx.String(FlagStorageRepo)
 		r, err := repo.NewFS(storageRepoPath)
 		if err != nil {