migrate volume sync status to grpc API on volume server

weed/server/volume_grpc_sync.go

@@ -0,0 +1,25 @@
+package weed_server
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
+	"github.com/chrislusf/seaweedfs/weed/storage"
+)
+
+func (vs *VolumeServer) VolumeSyncStatus(ctx context.Context, req *volume_server_pb.VolumeSyncStatusRequest) (*volume_server_pb.VolumeSyncStatusResponse, error) {
+
+	v := vs.store.GetVolume(storage.VolumeId(req.VolumdId))
+	if v == nil {
+		return nil, fmt.Errorf("Not Found Volume Id %d", req.VolumdId)
+	}
+
+	resp := v.GetVolumeSyncStatus()
+
+	glog.V(2).Infof("volume sync status %d", req.VolumdId)
+
+	return resp, nil
+
+}