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 b0b533e42..ef7841725 100644
--- a/weed/mq/client/sub_client/connect_to_sub_coordinator.go
+++ b/weed/mq/client/sub_client/connect_to_sub_coordinator.go
@@ -51,6 +51,7 @@ func (sub *TopicSubscriber) doKeepConnectedToSubCoordinator() {
 							ConsumerGroup:           sub.SubscriberConfig.ConsumerGroup,
 							ConsumerGroupInstanceId: sub.SubscriberConfig.ConsumerGroupInstanceId,
 							Topic:                   sub.ContentConfig.Topic.ToPbTopic(),
+							MaxPartitionCount: 	 	 sub.ProcessorConfig.ConcurrentPartitionLimit,
 						},
 					},
 				}); err != nil {
diff --git a/weed/mq/client/sub_client/subscriber.go b/weed/mq/client/sub_client/subscriber.go
index 3f343ed1d..723520c1d 100644
--- a/weed/mq/client/sub_client/subscriber.go
+++ b/weed/mq/client/sub_client/subscriber.go
@@ -21,7 +21,7 @@ type ContentConfiguration struct {
 }
 
 type ProcessorConfiguration struct {
-	ConcurrentPartitionLimit int // how many partitions to process concurrently
+	ConcurrentPartitionLimit int32 // how many partitions to process concurrently
 }
 
 type OnEachMessageFunc func(key, value []byte) (shouldContinue bool, err error)
diff --git a/weed/mq/sub_coordinator/consumer_group.go b/weed/mq/sub_coordinator/consumer_group.go
index d24a38d8a..f4938d539 100644
--- a/weed/mq/sub_coordinator/consumer_group.go
+++ b/weed/mq/sub_coordinator/consumer_group.go
@@ -14,6 +14,7 @@ type ConsumerGroupInstance struct {
 	// the consumer group instance may not have an active partition
 	Partitions   []*topic.Partition
 	ResponseChan chan *mq_pb.SubscriberToSubCoordinatorResponse
+	MaxPartitionCount int32
 }
 type ConsumerGroup struct {
 	topic topic.Topic
diff --git a/weed/mq/sub_coordinator/coordinator.go b/weed/mq/sub_coordinator/coordinator.go
index d128310d1..62c44fd48 100644
--- a/weed/mq/sub_coordinator/coordinator.go
+++ b/weed/mq/sub_coordinator/coordinator.go
@@ -67,6 +67,7 @@ func (c *Coordinator) AddSubscriber(initMessage *mq_pb.SubscriberToSubCoordinato
 			cgi, _ = cg.ConsumerGroupInstances.Get(initMessage.ConsumerGroupInstanceId)
 		}
 	}
+	cgi.MaxPartitionCount = initMessage.MaxPartitionCount
 	cg.OnAddConsumerGroupInstance(initMessage.ConsumerGroupInstanceId, initMessage.Topic)
 	return cgi
 }
diff --git a/weed/pb/mq.proto b/weed/pb/mq.proto
index 9e4874f30..a6bc89ad2 100644
--- a/weed/pb/mq.proto
+++ b/weed/pb/mq.proto
@@ -163,6 +163,7 @@ message SubscriberToSubCoordinatorRequest {
         string consumer_group = 1;
         string consumer_group_instance_id = 2;
         Topic topic = 3;
+        int32 max_partition_count = 4;
     }
     message AckMessage {
         Partition partition = 1;
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index ff381aec9..6a4fb8e1e 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -2195,6 +2195,7 @@ type SubscriberToSubCoordinatorRequest_InitMessage struct {
 	ConsumerGroup           string `protobuf:"bytes,1,opt,name=consumer_group,json=consumerGroup,proto3" json:"consumer_group,omitempty"`
 	ConsumerGroupInstanceId string `protobuf:"bytes,2,opt,name=consumer_group_instance_id,json=consumerGroupInstanceId,proto3" json:"consumer_group_instance_id,omitempty"`
 	Topic                   *Topic `protobuf:"bytes,3,opt,name=topic,proto3" json:"topic,omitempty"`
+	MaxPartitionCount       int32  `protobuf:"varint,4,opt,name=max_partition_count,json=maxPartitionCount,proto3" json:"max_partition_count,omitempty"`
 }
 
 func (x *SubscriberToSubCoordinatorRequest_InitMessage) Reset() {
@@ -2250,6 +2251,13 @@ func (x *SubscriberToSubCoordinatorRequest_InitMessage) GetTopic() *Topic {
 	return nil
 }
 
+func (x *SubscriberToSubCoordinatorRequest_InitMessage) GetMaxPartitionCount() int32 {
+	if x != nil {
+		return x.MaxPartitionCount
+	}
+	return 0
+}
+
 type SubscriberToSubCoordinatorRequest_AckMessage struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -2946,7 +2954,7 @@ var file_mq_proto_rawDesc = []byte{
 	0x28, 0x08, 0x52, 0x0a, 0x69, 0x73, 0x44, 0x72, 0x61, 0x69, 0x6e, 0x69, 0x6e, 0x67, 0x22, 0x1f,
 	0x0a, 0x1d, 0x41, 0x73, 0x73, 0x69, 0x67, 0x6e, 0x54, 0x6f, 0x70, 0x69, 0x63, 0x50, 0x61, 0x72,
 	0x74, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
-	0xca, 0x03, 0x0a, 0x21, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62, 0x65, 0x72, 0x54, 0x6f,
+	0xfa, 0x03, 0x0a, 0x21, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62, 0x65, 0x72, 0x54, 0x6f,
 	0x53, 0x75, 0x62, 0x43, 0x6f, 0x6f, 0x72, 0x64, 0x69, 0x6e, 0x61, 0x74, 0x6f, 0x72, 0x52, 0x65,
 	0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x51, 0x0a, 0x04, 0x69, 0x6e, 0x69, 0x74, 0x18, 0x01, 0x20,
 	0x01, 0x28, 0x0b, 0x32, 0x3b, 0x2e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f,
@@ -2958,7 +2966,7 @@ var file_mq_proto_rawDesc = []byte{
 	0x67, 0x5f, 0x70, 0x62, 0x2e, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62, 0x65, 0x72, 0x54,
 	0x6f, 0x53, 0x75, 0x62, 0x43, 0x6f, 0x6f, 0x72, 0x64, 0x69, 0x6e, 0x61, 0x74, 0x6f, 0x72, 0x52,
 	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x2e, 0x41, 0x63, 0x6b, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67,
-	0x65, 0x48, 0x00, 0x52, 0x03, 0x61, 0x63, 0x6b, 0x1a, 0x9c, 0x01, 0x0a, 0x0b, 0x49, 0x6e, 0x69,
+	0x65, 0x48, 0x00, 0x52, 0x03, 0x61, 0x63, 0x6b, 0x1a, 0xcc, 0x01, 0x0a, 0x0b, 0x49, 0x6e, 0x69,
 	0x74, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x25, 0x0a, 0x0e, 0x63, 0x6f, 0x6e, 0x73,
 	0x75, 0x6d, 0x65, 0x72, 0x5f, 0x67, 0x72, 0x6f, 0x75, 0x70, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
 	0x52, 0x0d, 0x63, 0x6f, 0x6e, 0x73, 0x75, 0x6d, 0x65, 0x72, 0x47, 0x72, 0x6f, 0x75, 0x70, 0x12,
@@ -2968,7 +2976,10 @@ var file_mq_proto_rawDesc = []byte{
 	0x75, 0x70, 0x49, 0x6e, 0x73, 0x74, 0x61, 0x6e, 0x63, 0x65, 0x49, 0x64, 0x12, 0x29, 0x0a, 0x05,
 	0x74, 0x6f, 0x70, 0x69, 0x63, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x13, 0x2e, 0x6d, 0x65,
 	0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x54, 0x6f, 0x70, 0x69, 0x63,
-	0x52, 0x05, 0x74, 0x6f, 0x70, 0x69, 0x63, 0x1a, 0x58, 0x0a, 0x0a, 0x41, 0x63, 0x6b, 0x4d, 0x65,
+	0x52, 0x05, 0x74, 0x6f, 0x70, 0x69, 0x63, 0x12, 0x2e, 0x0a, 0x13, 0x6d, 0x61, 0x78, 0x5f, 0x70,
+	0x61, 0x72, 0x74, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x04,
+	0x20, 0x01, 0x28, 0x05, 0x52, 0x11, 0x6d, 0x61, 0x78, 0x50, 0x61, 0x72, 0x74, 0x69, 0x74, 0x69,
+	0x6f, 0x6e, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x1a, 0x58, 0x0a, 0x0a, 0x41, 0x63, 0x6b, 0x4d, 0x65,
 	0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x35, 0x0a, 0x09, 0x70, 0x61, 0x72, 0x74, 0x69, 0x74, 0x69,
 	0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x17, 0x2e, 0x6d, 0x65, 0x73, 0x73, 0x61,
 	0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x50, 0x61, 0x72, 0x74, 0x69, 0x74, 0x69, 0x6f,