seaweedfs/weed/mq/broker/broker_connect.go
2024-02-05 16:46:40 -08:00

62 lines
1.6 KiB
Go

package broker
import (
"context"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
"io"
"math/rand"
"time"
)
// BrokerConnectToBalancer connects to the broker balancer and sends stats
func (b *MessageQueueBroker) BrokerConnectToBalancer(brokerBalancer string) error {
self := string(b.option.BrokerAddress())
glog.V(0).Infof("broker %s connects to balancer %s", self, brokerBalancer)
if brokerBalancer == "" {
return fmt.Errorf("no balancer found")
}
// connect to the lock owner
return pb.WithBrokerGrpcClient(false, brokerBalancer, b.grpcDialOption, func(client mq_pb.SeaweedMessagingClient) error {
stream, err := client.PublisherToPubBalancer(context.Background())
if err != nil {
return fmt.Errorf("connect to balancer %v: %v", brokerBalancer, err)
}
defer stream.CloseSend()
err = stream.Send(&mq_pb.PublisherToPubBalancerRequest{
Message: &mq_pb.PublisherToPubBalancerRequest_Init{
Init: &mq_pb.PublisherToPubBalancerRequest_InitMessage{
Broker: self,
},
},
})
if err != nil {
return fmt.Errorf("send init message: %v", err)
}
for {
stats := b.localTopicManager.CollectStats(time.Second * 5)
err = stream.Send(&mq_pb.PublisherToPubBalancerRequest{
Message: &mq_pb.PublisherToPubBalancerRequest_Stats{
Stats: stats,
},
})
if err != nil {
if err == io.EOF {
return err
}
return fmt.Errorf("send stats message: %v", err)
}
// glog.V(3).Infof("sent stats: %+v", stats)
time.Sleep(time.Millisecond*5000 + time.Duration(rand.Intn(1000))*time.Millisecond)
}
return nil
})
}