diff --git a/weed/mq/client/sub_client/connect_to_sub_coordinator.go b/weed/mq/client/sub_client/connect_to_sub_coordinator.go
index e7749f94b..fa75f87fe 100644
--- a/weed/mq/client/sub_client/connect_to_sub_coordinator.go
+++ b/weed/mq/client/sub_client/connect_to_sub_coordinator.go
@@ -108,15 +108,15 @@ func (sub *TopicSubscriber) onEachPartition(partition *mq_pb.Partition, broker s
 						Namespace: sub.ContentConfig.Namespace,
 						Name:      sub.ContentConfig.Topic,
 					},
-					Partition: &mq_pb.Partition{
-						RingSize:   partition.RingSize,
-						RangeStart: partition.RangeStart,
-						RangeStop:  partition.RangeStop,
+					PartitionOffset: &mq_pb.PartitionOffset{
+						Partition: &mq_pb.Partition{
+							RingSize:   partition.RingSize,
+							RangeStart: partition.RangeStart,
+							RangeStop:  partition.RangeStop,
+						},
+						TsNs: sub.alreadyProcessedTsNs,
 					},
 					Filter: sub.ContentConfig.Filter,
-					Offset: &mq_pb.SubscribeMessageRequest_InitMessage_StartTimestampNs{
-						StartTimestampNs: sub.alreadyProcessedTsNs,
-					},
 				},
 			},
 		})
@@ -148,6 +148,7 @@ func (sub *TopicSubscriber) onEachPartition(partition *mq_pb.Partition, broker s
 				return fmt.Errorf("subscribe recv: %v", err)
 			}
 			if resp.Message == nil {
+				glog.V(0).Infof("subscriber %s/%s/%s received nil message", sub.ContentConfig.Namespace, sub.ContentConfig.Topic, sub.SubscriberConfig.ConsumerGroup)
 				continue
 			}
 			switch m := resp.Message.(type) {