sending keyed offset

weed/mq/client/sub_client/connect_to_sub_coordinator.go

@@ -125,7 +125,12 @@ func (sub *TopicSubscriber) onEachPartition(assigned *mq_pb.BrokerPartitionAssig
 			defer sub.OnCompletionFunc()
 		}
 
-		partitionOffsetChan := make(chan int64, 1024)
+		type KeyedOffset struct {
+			Key    []byte
+			Offset int64
+		}
+
+		partitionOffsetChan := make(chan KeyedOffset, 1024)
 		defer func() {
 			close(partitionOffsetChan)
 		}()
@@ -136,7 +141,8 @@ func (sub *TopicSubscriber) onEachPartition(assigned *mq_pb.BrokerPartitionAssig
 				subscribeClient.SendMsg(&mq_pb.SubscribeMessageRequest{
 					Message: &mq_pb.SubscribeMessageRequest_Ack{
 						Ack: &mq_pb.SubscribeMessageRequest_AckMessage{
-							Sequence: ack,
+							Key:      ack.Key,
+							Sequence: ack.Offset,
 						},
 					},
 				})
@@ -161,7 +167,10 @@ func (sub *TopicSubscriber) onEachPartition(assigned *mq_pb.BrokerPartitionAssig
 				executors.Execute(func() {
 					processErr := sub.OnEachMessageFunc(m.Data.Key, m.Data.Value)
 					if processErr == nil {
-						partitionOffsetChan <- m.Data.TsNs
+						partitionOffsetChan <- KeyedOffset{
+							Key:    m.Data.Key,
+							Offset: m.Data.TsNs,
+						}
 					} else {
 						lastErr = processErr
 					}