mirror of
https://github.com/seaweedfs/seaweedfs.git
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73 lines
2.7 KiB
Go
73 lines
2.7 KiB
Go
package broker
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import (
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"context"
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/mq/balancer"
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"github.com/seaweedfs/seaweedfs/weed/mq/topic"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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// ConfigureTopic Runs on any broker, but proxied to the balancer if not the balancer
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func (broker *MessageQueueBroker) ConfigureTopic(ctx context.Context, request *mq_pb.ConfigureTopicRequest) (resp *mq_pb.ConfigureTopicResponse, err error) {
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if broker.currentBalancer == "" {
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return nil, status.Errorf(codes.Unavailable, "no balancer")
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}
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if !broker.lockAsBalancer.IsLocked() {
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proxyErr := broker.withBrokerClient(false, broker.currentBalancer, func(client mq_pb.SeaweedMessagingClient) error {
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resp, err = client.ConfigureTopic(ctx, request)
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return nil
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})
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if proxyErr != nil {
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return nil, proxyErr
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}
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return resp, err
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}
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ret := &mq_pb.ConfigureTopicResponse{}
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ret.BrokerPartitionAssignments, err = broker.Balancer.LookupOrAllocateTopicPartitions(request.Topic, true, request.PartitionCount)
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for _, bpa := range ret.BrokerPartitionAssignments {
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// fmt.Printf("create topic %s on %s\n", request.Topic, bpa.LeaderBroker)
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if doCreateErr := broker.withBrokerClient(false, pb.ServerAddress(bpa.LeaderBroker), func(client mq_pb.SeaweedMessagingClient) error {
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_, doCreateErr := client.DoConfigureTopic(ctx, &mq_pb.DoConfigureTopicRequest{
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Topic: request.Topic,
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Partition: bpa.Partition,
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})
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if doCreateErr != nil {
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return fmt.Errorf("do create topic %s on %s: %v", request.Topic, bpa.LeaderBroker, doCreateErr)
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}
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brokerStats, found := broker.Balancer.Brokers.Get(bpa.LeaderBroker)
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if !found {
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brokerStats = balancer.NewBrokerStats()
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if !broker.Balancer.Brokers.SetIfAbsent(bpa.LeaderBroker, brokerStats) {
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brokerStats, _ = broker.Balancer.Brokers.Get(bpa.LeaderBroker)
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}
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}
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brokerStats.RegisterAssignment(request.Topic, bpa.Partition)
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return nil
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}); doCreateErr != nil {
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return nil, doCreateErr
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}
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}
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// TODO revert if some error happens in the middle of the assignments
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return ret, err
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}
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func (broker *MessageQueueBroker) DoConfigureTopic(ctx context.Context, req *mq_pb.DoConfigureTopicRequest) (resp *mq_pb.DoConfigureTopicResponse, err error) {
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ret := &mq_pb.DoConfigureTopicResponse{}
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t, p := topic.FromPbTopic(req.Topic), topic.FromPbPartition(req.Partition)
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localTopicPartition := broker.localTopicManager.GetTopicPartition(t, p)
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if localTopicPartition == nil {
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localTopicPartition = topic.NewLocalPartition(t, p, true, nil)
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broker.localTopicManager.AddTopicPartition(t, localTopicPartition)
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}
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return ret, err
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}
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