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@ -11,25 +11,25 @@ type TopicConsumerGroups struct { |
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ConsumerGroups cmap.ConcurrentMap[string, *ConsumerGroup] |
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} |
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// Coordinator coordinates the instances in the consumer group for one topic.
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// SubCoordinator coordinates the instances in the consumer group for one topic.
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// It is responsible for:
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// 1. (Maybe) assigning partitions when a consumer instance is up/down.
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type Coordinator struct { |
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type SubCoordinator struct { |
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// map topic name to consumer groups
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TopicSubscribers cmap.ConcurrentMap[string, *TopicConsumerGroups] |
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balancer *pub_balancer.PubBalancer |
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FilerClientAccessor *FilerClientAccessor |
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} |
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func NewCoordinator(balancer *pub_balancer.PubBalancer) *Coordinator { |
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return &Coordinator{ |
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func NewCoordinator(balancer *pub_balancer.PubBalancer) *SubCoordinator { |
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return &SubCoordinator{ |
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TopicSubscribers: cmap.New[*TopicConsumerGroups](), |
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balancer: balancer, |
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} |
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} |
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func (c *Coordinator) GetTopicConsumerGroups(topic *mq_pb.Topic, createIfMissing bool) *TopicConsumerGroups { |
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func (c *SubCoordinator) GetTopicConsumerGroups(topic *mq_pb.Topic, createIfMissing bool) *TopicConsumerGroups { |
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topicName := toTopicName(topic) |
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tcg, _ := c.TopicSubscribers.Get(topicName) |
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if tcg == nil && createIfMissing { |
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@ -42,7 +42,7 @@ func (c *Coordinator) GetTopicConsumerGroups(topic *mq_pb.Topic, createIfMissing |
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} |
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return tcg |
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} |
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func (c *Coordinator) RemoveTopic(topic *mq_pb.Topic) { |
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func (c *SubCoordinator) RemoveTopic(topic *mq_pb.Topic) { |
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topicName := toTopicName(topic) |
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c.TopicSubscribers.Remove(topicName) |
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} |
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@ -52,7 +52,7 @@ func toTopicName(topic *mq_pb.Topic) string { |
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return topicName |
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} |
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func (c *Coordinator) AddSubscriber(initMessage *mq_pb.SubscriberToSubCoordinatorRequest_InitMessage) *ConsumerGroupInstance { |
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func (c *SubCoordinator) AddSubscriber(initMessage *mq_pb.SubscriberToSubCoordinatorRequest_InitMessage) *ConsumerGroupInstance { |
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tcg := c.GetTopicConsumerGroups(initMessage.Topic, true) |
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cg, _ := tcg.ConsumerGroups.Get(initMessage.ConsumerGroup) |
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if cg == nil { |
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@ -73,7 +73,7 @@ func (c *Coordinator) AddSubscriber(initMessage *mq_pb.SubscriberToSubCoordinato |
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return cgi |
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} |
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func (c *Coordinator) RemoveSubscriber(initMessage *mq_pb.SubscriberToSubCoordinatorRequest_InitMessage) { |
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func (c *SubCoordinator) RemoveSubscriber(initMessage *mq_pb.SubscriberToSubCoordinatorRequest_InitMessage) { |
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tcg := c.GetTopicConsumerGroups(initMessage.Topic, false) |
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if tcg == nil { |
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return |
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@ -92,7 +92,7 @@ func (c *Coordinator) RemoveSubscriber(initMessage *mq_pb.SubscriberToSubCoordin |
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} |
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} |
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func (c *Coordinator) OnPartitionChange(topic *mq_pb.Topic, assignments []*mq_pb.BrokerPartitionAssignment) { |
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func (c *SubCoordinator) OnPartitionChange(topic *mq_pb.Topic, assignments []*mq_pb.BrokerPartitionAssignment) { |
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tcg, _ := c.TopicSubscribers.Get(toTopicName(topic)) |
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if tcg == nil { |
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return |
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@ -103,11 +103,11 @@ func (c *Coordinator) OnPartitionChange(topic *mq_pb.Topic, assignments []*mq_pb |
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} |
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// OnSubAddBroker is called when a broker is added to the balancer
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func (c *Coordinator) OnSubAddBroker(broker string, brokerStats *pub_balancer.BrokerStats) { |
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func (c *SubCoordinator) OnSubAddBroker(broker string, brokerStats *pub_balancer.BrokerStats) { |
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} |
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// OnSubRemoveBroker is called when a broker is removed from the balancer
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func (c *Coordinator) OnSubRemoveBroker(broker string, brokerStats *pub_balancer.BrokerStats) { |
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func (c *SubCoordinator) OnSubRemoveBroker(broker string, brokerStats *pub_balancer.BrokerStats) { |
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} |