seaweedfs/weed/mq/broker/broker_server.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

151 lines
4.5 KiB
Go

package broker
import (
"fmt"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/mq/pub_balancer"
"github.com/seaweedfs/seaweedfs/weed/mq/sub_coordinator"
"github.com/seaweedfs/seaweedfs/weed/mq/topic"
"time"
"github.com/seaweedfs/seaweedfs/weed/cluster"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
"github.com/seaweedfs/seaweedfs/weed/wdclient"
"google.golang.org/grpc"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
)
type MessageQueueBrokerOption struct {
Masters map[string]pb.ServerAddress
FilerGroup string
DataCenter string
Rack string
DefaultReplication string
MaxMB int
Ip string
Port int
Cipher bool
}
type MessageQueueBroker struct {
mq_pb.UnimplementedSeaweedMessagingServer
option *MessageQueueBrokerOption
grpcDialOption grpc.DialOption
MasterClient *wdclient.MasterClient
filers map[pb.ServerAddress]struct{}
currentFiler pb.ServerAddress
localTopicManager *topic.LocalTopicManager
Balancer *pub_balancer.Balancer
lockAsBalancer *cluster.LiveLock
currentBalancer pb.ServerAddress
Coordinator *sub_coordinator.Coordinator
}
func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (mqBroker *MessageQueueBroker, err error) {
pub_broker_balancer := pub_balancer.NewBalancer()
mqBroker = &MessageQueueBroker{
option: option,
grpcDialOption: grpcDialOption,
MasterClient: wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, option.Rack, *pb.NewServiceDiscoveryFromMap(option.Masters)),
filers: make(map[pb.ServerAddress]struct{}),
localTopicManager: topic.NewLocalTopicManager(),
Balancer: pub_broker_balancer,
Coordinator: sub_coordinator.NewCoordinator(pub_broker_balancer),
}
mqBroker.MasterClient.SetOnPeerUpdateFn(mqBroker.OnBrokerUpdate)
go mqBroker.MasterClient.KeepConnectedToMaster()
existingNodes := cluster.ListExistingPeerUpdates(mqBroker.MasterClient.GetMaster(), grpcDialOption, option.FilerGroup, cluster.FilerType)
for _, newNode := range existingNodes {
mqBroker.OnBrokerUpdate(newNode, time.Now())
}
// keep connecting to balancer
go func() {
for mqBroker.currentFiler == "" {
time.Sleep(time.Millisecond * 237)
}
self := fmt.Sprintf("%s:%d", option.Ip, option.Port)
glog.V(0).Infof("broker %s found filer %s", self, mqBroker.currentFiler)
lockClient := cluster.NewLockClient(grpcDialOption, mqBroker.currentFiler)
mqBroker.lockAsBalancer = lockClient.StartLock(pub_balancer.LockBrokerBalancer, self)
for {
err := mqBroker.BrokerConnectToBalancer(self)
if err != nil {
fmt.Printf("BrokerConnectToBalancer: %v\n", err)
}
time.Sleep(time.Second)
}
}()
return mqBroker, nil
}
func (b *MessageQueueBroker) OnBrokerUpdate(update *master_pb.ClusterNodeUpdate, startFrom time.Time) {
if update.NodeType != cluster.FilerType {
return
}
address := pb.ServerAddress(update.Address)
if update.IsAdd {
b.filers[address] = struct{}{}
if b.currentFiler == "" {
b.currentFiler = address
}
} else {
delete(b.filers, address)
if b.currentFiler == address {
for filer := range b.filers {
b.currentFiler = filer
break
}
}
}
}
func (b *MessageQueueBroker) GetFiler() pb.ServerAddress {
return b.currentFiler
}
func (b *MessageQueueBroker) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) error {
return pb.WithFilerClient(streamingMode, 0, b.GetFiler(), b.grpcDialOption, fn)
}
func (b *MessageQueueBroker) AdjustedUrl(location *filer_pb.Location) string {
return location.Url
}
func (b *MessageQueueBroker) GetDataCenter() string {
return ""
}
func (b *MessageQueueBroker) withMasterClient(streamingMode bool, master pb.ServerAddress, fn func(client master_pb.SeaweedClient) error) error {
return pb.WithMasterClient(streamingMode, master, b.grpcDialOption, false, func(client master_pb.SeaweedClient) error {
return fn(client)
})
}
func (b *MessageQueueBroker) withBrokerClient(streamingMode bool, server pb.ServerAddress, fn func(client mq_pb.SeaweedMessagingClient) error) error {
return pb.WithBrokerGrpcClient(streamingMode, server.String(), b.grpcDialOption, func(client mq_pb.SeaweedMessagingClient) error {
return fn(client)
})
}