seaweedfs/weed/mq/client/pub_client/publisher.go
Chris Lu 580940bf82
Merge accumulated changes related to message queue (#5098)
* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* balance partitions on brokers

* prepare topic partition first and then publish, move partition

* purge unused APIs

* clean up

* adjust logs

* add BalanceTopics() grpc API

* configure topic

* configure topic command

* refactor

* repair missing partitions

* sequence of operations to ensure ordering

* proto to close publishers and consumers

* rename file

* topic partition versioned by unixTimeNs

* create local topic partition

* close publishers

* randomize the client name

* wait until no publishers

* logs

* close stop publisher channel

* send last ack

* comments

* comment

* comments

* support list of brokers

* add cli options

* Update .gitignore

* logs

* return io.eof directly

* refactor

* optionally create topic

* refactoring

* detect consumer disconnection

* sub client wait for more messages

* subscribe by time stamp

* rename

* rename to sub_balancer

* rename

* adjust comments

* rename

* fix compilation

* rename

* rename

* SubscriberToSubCoordinator

* sticky rebalance

* go fmt

* add tests

* tracking topic=>broker

* merge

* comment
2023-12-11 12:05:54 -08:00

70 lines
1.6 KiB
Go

package pub_client
import (
"fmt"
"github.com/rdleal/intervalst/interval"
"github.com/seaweedfs/seaweedfs/weed/mq/pub_balancer"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"sync"
"time"
)
type PublisherConfiguration struct {
CreateTopic bool
CreateTopicPartitionCount int32
}
type PublishClient struct {
mq_pb.SeaweedMessaging_PublishClient
Broker string
Err error
}
type TopicPublisher struct {
namespace string
topic string
partition2Broker *interval.SearchTree[*PublishClient, int32]
grpcDialOption grpc.DialOption
sync.Mutex // protects grpc
config *PublisherConfiguration
}
func NewTopicPublisher(namespace, topic string, config *PublisherConfiguration) *TopicPublisher {
return &TopicPublisher{
namespace: namespace,
topic: topic,
partition2Broker: interval.NewSearchTree[*PublishClient](func(a, b int32) int {
return int(a - b)
}),
grpcDialOption: grpc.WithTransportCredentials(insecure.NewCredentials()),
config: config,
}
}
func (p *TopicPublisher) Connect(bootstrapBrokers []string) (err error) {
if len(bootstrapBrokers) == 0 {
return nil
}
for _, b := range bootstrapBrokers {
err = p.doLookupAndConnect(b)
if err == nil {
return nil
}
fmt.Printf("failed to connect to %s: %v\n\n", b, err)
}
return err
}
func (p *TopicPublisher) Shutdown() error {
if clients, found := p.partition2Broker.AllIntersections(0, pub_balancer.MaxPartitionCount); found {
for _, client := range clients {
client.CloseSend()
}
}
time.Sleep(1100 * time.Millisecond)
return nil
}