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580940bf82
* 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
79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
package topic
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import (
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"fmt"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
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"github.com/seaweedfs/seaweedfs/weed/util/log_buffer"
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"time"
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)
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type LocalPartition struct {
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Partition
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isLeader bool
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FollowerBrokers []pb.ServerAddress
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logBuffer *log_buffer.LogBuffer
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ConsumerCount int32
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StopPublishersCh chan struct{}
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Publishers *LocalPartitionPublishers
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StopSubscribersCh chan struct{}
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Subscribers *LocalPartitionSubscribers
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}
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func NewLocalPartition(partition Partition, isLeader bool, followerBrokers []pb.ServerAddress) *LocalPartition {
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return &LocalPartition{
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Partition: partition,
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isLeader: isLeader,
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FollowerBrokers: followerBrokers,
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logBuffer: log_buffer.NewLogBuffer(
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fmt.Sprintf("%d/%4d-%4d", partition.UnixTimeNs, partition.RangeStart, partition.RangeStop),
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2*time.Minute,
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func(startTime, stopTime time.Time, buf []byte) {
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},
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func() {
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},
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),
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Publishers: NewLocalPartitionPublishers(),
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Subscribers: NewLocalPartitionSubscribers(),
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}
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}
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type OnEachMessageFn func(logEntry *filer_pb.LogEntry) error
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func (p *LocalPartition) Publish(message *mq_pb.DataMessage) {
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p.logBuffer.AddToBuffer(message.Key, message.Value, time.Now().UnixNano())
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}
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func (p *LocalPartition) Subscribe(clientName string, startReadTime time.Time, onNoMessageFn func() bool, eachMessageFn OnEachMessageFn) {
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p.logBuffer.LoopProcessLogData(clientName, startReadTime, 0, onNoMessageFn, eachMessageFn)
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}
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func FromPbBrokerPartitionAssignment(self pb.ServerAddress, assignment *mq_pb.BrokerPartitionAssignment) *LocalPartition {
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isLeader := assignment.LeaderBroker == string(self)
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followers := make([]pb.ServerAddress, len(assignment.FollowerBrokers))
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for i, followerBroker := range assignment.FollowerBrokers {
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followers[i] = pb.ServerAddress(followerBroker)
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}
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return NewLocalPartition(FromPbPartition(assignment.Partition), isLeader, followers)
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}
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func (p *LocalPartition) closePublishers() {
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p.Publishers.SignalShutdown()
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close(p.StopPublishersCh)
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}
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func (p *LocalPartition) closeSubscribers() {
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p.Subscribers.SignalShutdown()
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}
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func (p *LocalPartition) WaitUntilNoPublishers() {
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for {
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if p.Publishers.IsEmpty() {
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return
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}
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time.Sleep(113 * time.Millisecond)
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}
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}
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