Squashed commit of the following:

commit 32f4b1a13057d56b6de487cdb80ff7c205af01a6
Author: chrislu <chris.lu@gmail.com>
Date:   Sun Aug 20 22:52:19 2023 -0700

    fix compilation

commit e77ad33b7ca0423138fbae26a4433b60923a9588
Author: chrislu <chris.lu@gmail.com>
Date:   Sun Aug 20 22:46:44 2023 -0700

    pub

commit f431f30cc7ca277ca299e3cd118c05537fb9f5c3
Author: chrislu <chris.lu@gmail.com>
Date:   Sun Aug 20 13:27:39 2023 -0700

    fix generic type

commit 4e9dcb18293fd1e3e306e2dceb995dfd67a35e1d
Merge: 30f942580 16e3f2d52
Author: chrislu <chris.lu@gmail.com>
Date:   Sun Aug 20 12:47:14 2023 -0700

    Merge branch 'master' into pubsub

commit 30f942580ad1bb32ae94aade2e3a21ec3ab63e21
Author: chrislu <chris.lu@gmail.com>
Date:   Sun Aug 20 11:10:58 2023 -0700

    wip

commit f8b00980bc2f3879bb43decffd9a08d842f196f2
Author: chrislu <chris.lu@gmail.com>
Date:   Tue Jul 25 09:14:35 2023 -0700

    add design document

commit 08d2bebe42a26ebc39f1542f54d99e73620727dd
Author: chrislu <chris.lu@gmail.com>
Date:   Tue Jul 25 09:14:06 2023 -0700

    minor

commit bcfa7982b262a40fcdce6fc6613fad2ce07c13da
Author: chrislu <chris.lu@gmail.com>
Date:   Tue Jul 25 09:13:49 2023 -0700

    rename
This commit is contained in:
chrislu
2023-08-20 22:53:05 -07:00
parent 3650e5adda
commit 01d70c21f3
16 changed files with 1919 additions and 220 deletions

View File

@@ -4,7 +4,7 @@ import (
"context"
"github.com/seaweedfs/seaweedfs/weed/cluster"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/mq"
"github.com/seaweedfs/seaweedfs/weed/mq/topic"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
@@ -12,6 +12,10 @@ import (
"sync"
)
const (
MaxPartitionCount = 1024
)
func (broker *MessageQueueBroker) FindBrokerLeader(c context.Context, request *mq_pb.FindBrokerLeaderRequest) (*mq_pb.FindBrokerLeaderResponse, error) {
ret := &mq_pb.FindBrokerLeaderResponse{}
err := broker.withMasterClient(false, broker.MasterClient.GetMaster(), func(client master_pb.SeaweedClient) error {
@@ -31,21 +35,9 @@ func (broker *MessageQueueBroker) FindBrokerLeader(c context.Context, request *m
return ret, err
}
func (broker *MessageQueueBroker) CheckSegmentStatus(c context.Context, request *mq_pb.CheckSegmentStatusRequest) (*mq_pb.CheckSegmentStatusResponse, error) {
ret := &mq_pb.CheckSegmentStatusResponse{}
// TODO add in memory active segment
return ret, nil
}
func (broker *MessageQueueBroker) CheckBrokerLoad(c context.Context, request *mq_pb.CheckBrokerLoadRequest) (*mq_pb.CheckBrokerLoadResponse, error) {
ret := &mq_pb.CheckBrokerLoadResponse{}
// TODO read broker's load
return ret, nil
}
func (broker *MessageQueueBroker) AssignSegmentBrokers(c context.Context, request *mq_pb.AssignSegmentBrokersRequest) (*mq_pb.AssignSegmentBrokersResponse, error) {
ret := &mq_pb.AssignSegmentBrokersResponse{}
segment := mq.FromPbSegment(request.Segment)
segment := topic.FromPbSegment(request.Segment)
// check existing segment locations on filer
existingBrokers, err := broker.checkSegmentOnFiler(segment)
@@ -84,7 +76,92 @@ func (broker *MessageQueueBroker) AssignSegmentBrokers(c context.Context, reques
return ret, nil
}
func (broker *MessageQueueBroker) checkSegmentsOnBrokers(segment *mq.Segment, brokers []pb.ServerAddress) (active bool, err error) {
func (broker *MessageQueueBroker) CheckSegmentStatus(c context.Context, request *mq_pb.CheckSegmentStatusRequest) (*mq_pb.CheckSegmentStatusResponse, error) {
ret := &mq_pb.CheckSegmentStatusResponse{}
// TODO add in memory active segment
return ret, nil
}
func (broker *MessageQueueBroker) CheckBrokerLoad(c context.Context, request *mq_pb.CheckBrokerLoadRequest) (*mq_pb.CheckBrokerLoadResponse, error) {
ret := &mq_pb.CheckBrokerLoadResponse{}
// TODO read broker's load
return ret, nil
}
// FindTopicBrokers returns the brokers that are serving the topic
//
// 1. lock the topic
//
// 2. find the topic partitions on the filer
// 2.1 if the topic is not found, return error
// 2.2 if the request is_for_publish, create the topic
// 2.2.1 if the request is_for_subscribe, return error not found
// 2.2.2 if the request is_for_publish, create the topic
// 2.2 if the topic is found, return the brokers
//
// 3. unlock the topic
func (broker *MessageQueueBroker) FindTopicBrokers(c context.Context, request *mq_pb.FindTopicBrokersRequest) (*mq_pb.FindTopicBrokersResponse, error) {
ret := &mq_pb.FindTopicBrokersResponse{}
// lock the topic
// find the topic partitions on the filer
// if the topic is not found
// if the request is_for_publish
// create the topic
// if the request is_for_subscribe
// return error not found
return ret, nil
}
// CheckTopicPartitionsStatus check the topic partitions on the broker
func (broker *MessageQueueBroker) CheckTopicPartitionsStatus(c context.Context, request *mq_pb.CheckTopicPartitionsStatusRequest) (*mq_pb.CheckTopicPartitionsStatusResponse, error) {
ret := &mq_pb.CheckTopicPartitionsStatusResponse{}
return ret, nil
}
// createOrUpdateTopicPartitions creates the topic partitions on the broker
// 1. check
func (broker *MessageQueueBroker) createOrUpdateTopicPartitions(topic *topic.Topic, prevAssignment *mq_pb.TopicPartitionsAssignment) (err error) {
// create or update each partition
if prevAssignment == nil {
broker.createOrUpdateTopicPartition(topic, nil)
} else {
for _, partitionAssignment := range prevAssignment.BrokerPartitions {
broker.createOrUpdateTopicPartition(topic, partitionAssignment)
}
}
return nil
}
func (broker *MessageQueueBroker) createOrUpdateTopicPartition(topic *topic.Topic, oldAssignment *mq_pb.BrokerPartitionsAssignment) (newAssignment *mq_pb.BrokerPartitionsAssignment) {
shouldCreate := broker.confirmBrokerPartitionAssignment(topic, oldAssignment)
if !shouldCreate {
}
return
}
func (broker *MessageQueueBroker) confirmBrokerPartitionAssignment(topic *topic.Topic, oldAssignment *mq_pb.BrokerPartitionsAssignment) (shouldCreate bool) {
if oldAssignment == nil {
return true
}
for _, b := range oldAssignment.FollowerBrokers {
pb.WithBrokerClient(false, pb.ServerAddress(b), broker.grpcDialOption, func(client mq_pb.SeaweedMessagingClient) error {
_, err := client.CheckTopicPartitionsStatus(context.Background(), &mq_pb.CheckTopicPartitionsStatusRequest{
Namespace: string(topic.Namespace),
Topic: topic.Name,
BrokerPartitionsAssignment: oldAssignment,
ShouldCancelIfNotMatch: true,
})
if err != nil {
shouldCreate = true
}
return nil
})
}
return
}
func (broker *MessageQueueBroker) checkSegmentsOnBrokers(segment *topic.Segment, brokers []pb.ServerAddress) (active bool, err error) {
var wg sync.WaitGroup
for _, candidate := range brokers {