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ask follower to follow

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This commit is contained in:
chrislu
2024-03-10 14:34:28 -07:00
parent c1a5952009
commit 6f75a0af55
11 changed files with 1362 additions and 316 deletions
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34
weed/mq/broker/broker_grpc_pub.go
View File

@@ -5,6 +5,7 @@ import (
"fmt"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/mq/topic"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
"google.golang.org/grpc/peer"
"io"
@@ -59,6 +60,21 @@ func (b *MessageQueueBroker) PublishMessage(stream mq_pb.SeaweedMessaging_Publis
return stream.Send(response)
}
ackInterval = int(initMessage.AckInterval)
for _, follower := range initMessage.FollowerBrokers {
followErr := b.withBrokerClient(false, pb.ServerAddress(follower), func(client mq_pb.SeaweedMessagingClient) error {
_, err := client.PublishFollowMe(context.Background(), &mq_pb.PublishFollowMeRequest{
Topic: initMessage.Topic,
Partition: initMessage.Partition,
BrokerSelf: string(b.option.BrokerAddress()),
})
return err
})
if followErr != nil {
response.Error = fmt.Sprintf("follower %v failed: %v", follower, followErr)
glog.Errorf("follower %v failed: %v", follower, followErr)
return stream.Send(response)
}
}
stream.Send(response)
} else {
response.Error = fmt.Sprintf("missing init message")
@@ -86,21 +102,9 @@ func (b *MessageQueueBroker) PublishMessage(stream mq_pb.SeaweedMessaging_Publis
glog.V(0).Infof("topic %v partition %v published %d messges.", initMessage.Topic, initMessage.Partition, ackSequence)
}()
go func() {
for {
select {
case resp := <-respChan:
if resp != nil {
if err := stream.Send(resp); err != nil {
glog.Errorf("Error sending response %v: %v", resp, err)
}
} else {
return
}
case <-localTopicPartition.StopPublishersCh:
respChan <- &mq_pb.PublishMessageResponse{
AckSequence: ackSequence,
ShouldClose: true,
}
for resp := range respChan {
if err := stream.Send(resp); err != nil {
glog.Errorf("Error sending response %v: %v", resp, err)
}
}
}()

78
weed/mq/broker/broker_grpc_pub_follow.go Normal file
View File

@@ -0,0 +1,78 @@
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"
)
func (b *MessageQueueBroker) PublishFollowMe(c context.Context, request *mq_pb.PublishFollowMeRequest) (*mq_pb.PublishFollowMeResponse, error){
glog.V(0).Infof("PublishFollowMe %v", request)
go b.withBrokerClient(true, pb.ServerAddress(request.BrokerSelf), func(client mq_pb.SeaweedMessagingClient) error {
followerId := rand.Int31()
subscribeClient, err := client.FollowInMemoryMessages(context.Background(), &mq_pb.FollowInMemoryMessagesRequest{
Message: &mq_pb.FollowInMemoryMessagesRequest_Init{
Init: &mq_pb.FollowInMemoryMessagesRequest_InitMessage{
ConsumerGroup: string(b.option.BrokerAddress()),
ConsumerId: fmt.Sprintf("followMe-%d", followerId),
FollowerId: followerId,
Topic: request.Topic,
PartitionOffset: &mq_pb.PartitionOffset{
Partition: request.Partition,
StartTsNs: 0,
StartType: mq_pb.PartitionOffsetStartType_EARLIEST_IN_MEMORY,
},
},
},
})
if err != nil {
glog.Errorf("FollowInMemoryMessages error: %v", err)
return err
}
b.doFollowInMemoryMessage(context.Background(), subscribeClient)
return nil
})
return &mq_pb.PublishFollowMeResponse{}, nil
}
func (b *MessageQueueBroker) doFollowInMemoryMessage(c context.Context, client mq_pb.SeaweedMessaging_FollowInMemoryMessagesClient) {
for {
resp, err := client.Recv()
if err != nil {
if err != io.EOF {
glog.V(0).Infof("doFollowInMemoryMessage error: %v", err)
}
return
}
if resp == nil {
glog.V(0).Infof("doFollowInMemoryMessage nil response")
return
}
if resp.Message != nil {
// process ctrl message or data message
switch m:= resp.Message.(type) {
case *mq_pb.FollowInMemoryMessagesResponse_Data:
// process data message
print("d")
case *mq_pb.FollowInMemoryMessagesResponse_Ctrl:
// process ctrl message
if m.Ctrl.FlushedSequence > 0 {
flushTime := time.Unix(0, m.Ctrl.FlushedSequence)
glog.V(0).Infof("doFollowInMemoryMessage flushTime: %v", flushTime)
}
if m.Ctrl.FollowerChangedToId != 0 {
// follower changed
glog.V(0).Infof("doFollowInMemoryMessage follower changed to %d", m.Ctrl.FollowerChangedToId)
return
}
}
}
}
}

194
weed/mq/broker/broker_grpc_sub.go
View File

@@ -8,6 +8,7 @@ import (
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
"github.com/seaweedfs/seaweedfs/weed/util/log_buffer"
"sync/atomic"
"time"
)
@@ -69,15 +70,7 @@ func (b *MessageQueueBroker) SubscribeMessage(req *mq_pb.SubscribeMessageRequest
var startPosition log_buffer.MessagePosition
if req.GetInit() != nil && req.GetInit().GetPartitionOffset() != nil {
offset := req.GetInit().GetPartitionOffset()
if offset.StartTsNs != 0 {
startPosition = log_buffer.NewMessagePosition(offset.StartTsNs, -2)
}
if offset.StartType == mq_pb.PartitionOffsetStartType_EARLIEST {
startPosition = log_buffer.NewMessagePosition(1, -3)
} else if offset.StartType == mq_pb.PartitionOffsetStartType_LATEST {
startPosition = log_buffer.NewMessagePosition(time.Now().UnixNano(), -4)
}
startPosition = getRequestPosition(req.GetInit().GetPartitionOffset())
}
return localTopicPartition.Subscribe(clientName, startPosition, func() bool {
@@ -85,10 +78,10 @@ func (b *MessageQueueBroker) SubscribeMessage(req *mq_pb.SubscribeMessageRequest
return false
}
sleepIntervalCount++
if sleepIntervalCount > 10 {
sleepIntervalCount = 10
if sleepIntervalCount > 32 {
sleepIntervalCount = 32
}
time.Sleep(time.Duration(sleepIntervalCount) * 337 * time.Millisecond)
time.Sleep(time.Duration(sleepIntervalCount) * 137 * time.Millisecond)
// Check if the client has disconnected by monitoring the context
select {
@@ -116,7 +109,7 @@ func (b *MessageQueueBroker) SubscribeMessage(req *mq_pb.SubscribeMessageRequest
TsNs: logEntry.TsNs,
},
}}); err != nil {
glog.Errorf("Error sending setup response: %v", err)
glog.Errorf("Error sending data: %v", err)
return false, err
}
@@ -124,3 +117,178 @@ func (b *MessageQueueBroker) SubscribeMessage(req *mq_pb.SubscribeMessageRequest
return false, nil
})
}
func getRequestPosition(offset *mq_pb.PartitionOffset) (startPosition log_buffer.MessagePosition) {
if offset.StartTsNs != 0 {
startPosition = log_buffer.NewMessagePosition(offset.StartTsNs, -2)
}
if offset.StartType == mq_pb.PartitionOffsetStartType_EARLIEST {
startPosition = log_buffer.NewMessagePosition(1, -3)
} else if offset.StartType == mq_pb.PartitionOffsetStartType_LATEST {
startPosition = log_buffer.NewMessagePosition(time.Now().UnixNano(), -4)
}
return
}
func (b *MessageQueueBroker) FollowInMemoryMessages(req *mq_pb.FollowInMemoryMessagesRequest, stream mq_pb.SeaweedMessaging_FollowInMemoryMessagesServer) (err error) {
ctx := stream.Context()
clientName := req.GetInit().ConsumerId
t := topic.FromPbTopic(req.GetInit().Topic)
partition := topic.FromPbPartition(req.GetInit().GetPartitionOffset().GetPartition())
glog.V(0).Infof("FollowInMemoryMessages %s on %v %v connected", clientName, t, partition)
waitIntervalCount := 0
var localTopicPartition *topic.LocalPartition
for localTopicPartition == nil {
localTopicPartition, err = b.GetOrGenLocalPartition(t, partition)
if err != nil {
glog.V(1).Infof("topic %v partition %v not setup", t, partition)
}
if localTopicPartition != nil {
break
}
waitIntervalCount++
if waitIntervalCount > 32 {
waitIntervalCount = 32
}
time.Sleep(time.Duration(waitIntervalCount) * 137 * time.Millisecond)
// Check if the client has disconnected by monitoring the context
select {
case <-ctx.Done():
err := ctx.Err()
if err == context.Canceled {
// Client disconnected
return nil
}
glog.V(0).Infof("FollowInMemoryMessages %s disconnected: %v", clientName, err)
return nil
default:
// Continue processing the request
}
}
// set the current follower id
followerId := req.GetInit().FollowerId
atomic.StoreInt32(&localTopicPartition.FollowerId, followerId)
glog.V(0).Infof("FollowInMemoryMessages %s connected on %v %v", clientName, t, partition)
isConnected := true
sleepIntervalCount := 0
var counter int64
defer func() {
isConnected = false
glog.V(0).Infof("FollowInMemoryMessages %s on %v %v disconnected, sent %d", clientName, t, partition, counter)
}()
var startPosition log_buffer.MessagePosition
if req.GetInit() != nil && req.GetInit().GetPartitionOffset() != nil {
startPosition = getRequestPosition(req.GetInit().GetPartitionOffset())
}
var prevFlushTsNs int64
_,_, err = localTopicPartition.LogBuffer.LoopProcessLogData(clientName, startPosition, 0, func() bool {
if !isConnected {
return false
}
sleepIntervalCount++
if sleepIntervalCount > 32 {
sleepIntervalCount = 32
}
time.Sleep(time.Duration(sleepIntervalCount) * 137 * time.Millisecond)
if localTopicPartition.LogBuffer.IsStopping() {
newFollowerId := atomic.LoadInt32(&localTopicPartition.FollowerId)
glog.V(0).Infof("FollowInMemoryMessages1 %s on %v %v follower id changed to %d", clientName, t, partition, newFollowerId)
stream.Send(&mq_pb.FollowInMemoryMessagesResponse{
Message: &mq_pb.FollowInMemoryMessagesResponse_Ctrl{
Ctrl: &mq_pb.FollowInMemoryMessagesResponse_CtrlMessage{
FollowerChangedToId: newFollowerId,
},
},
})
return false
}
// Check if the client has disconnected by monitoring the context
select {
case <-ctx.Done():
err := ctx.Err()
if err == context.Canceled {
// Client disconnected
return false
}
glog.V(0).Infof("Subscriber %s disconnected: %v", clientName, err)
return false
default:
// Continue processing the request
}
// send the last flushed sequence
flushTsNs := atomic.LoadInt64(&localTopicPartition.LogBuffer.LastFlushTsNs)
if flushTsNs != prevFlushTsNs {
prevFlushTsNs = flushTsNs
stream.Send(&mq_pb.FollowInMemoryMessagesResponse{
Message: &mq_pb.FollowInMemoryMessagesResponse_Ctrl{
Ctrl: &mq_pb.FollowInMemoryMessagesResponse_CtrlMessage{
FlushedSequence: flushTsNs,
},
},
})
}
return true
}, func(logEntry *filer_pb.LogEntry) (bool, error) {
// reset the sleep interval count
sleepIntervalCount = 0
// check the follower id
newFollowerId := atomic.LoadInt32(&localTopicPartition.FollowerId)
if newFollowerId != followerId {
glog.V(0).Infof("FollowInMemoryMessages2 %s on %v %v follower id %d changed to %d", clientName, t, partition, followerId, newFollowerId)
stream.Send(&mq_pb.FollowInMemoryMessagesResponse{
Message: &mq_pb.FollowInMemoryMessagesResponse_Ctrl{
Ctrl: &mq_pb.FollowInMemoryMessagesResponse_CtrlMessage{
FollowerChangedToId: newFollowerId,
},
},
})
return true, nil
}
// send the last flushed sequence
flushTsNs := atomic.LoadInt64(&localTopicPartition.LogBuffer.LastFlushTsNs)
if flushTsNs != prevFlushTsNs {
prevFlushTsNs = flushTsNs
stream.Send(&mq_pb.FollowInMemoryMessagesResponse{
Message: &mq_pb.FollowInMemoryMessagesResponse_Ctrl{
Ctrl: &mq_pb.FollowInMemoryMessagesResponse_CtrlMessage{
FlushedSequence: flushTsNs,
},
},
})
}
// send the log entry
if err := stream.Send(&mq_pb.FollowInMemoryMessagesResponse{
Message: &mq_pb.FollowInMemoryMessagesResponse_Data{
Data: &mq_pb.DataMessage{
Key: logEntry.Key,
Value: logEntry.Data,
TsNs: logEntry.TsNs,
},
}}); err != nil {
glog.Errorf("Error sending setup response: %v", err)
return false, err
}
counter++
return false, nil
})
return err
}

3
weed/mq/broker/broker_topic_partition_read_write.go
View File

@@ -11,6 +11,7 @@ import (
"github.com/seaweedfs/seaweedfs/weed/util/log_buffer"
"google.golang.org/protobuf/proto"
"math"
"sync/atomic"
"time"
)
@@ -38,6 +39,8 @@ func (b *MessageQueueBroker) genLogFlushFunc(t topic.Topic, partition *mq_pb.Par
break
}
}
atomic.StoreInt64(&logBuffer.LastFlushTsNs, stopTime.UnixNano())
}
}