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scheduler concurrent bug fix (#513) 

Signed-off-by: santong <weipeng.swp@alibaba-inc.com>
This commit is contained in:
sunwp 2021-08-02 19:42:46 +08:00 committed by Gaius
parent 0df064202e
commit 4d49d77d5c
No known key found for this signature in database
GPG Key ID: 8B4E5D1290FA2FFB
13 changed files with 96 additions and 100 deletions
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8
client/config/peerhost_linux.go
View File

@ -21,6 +21,7 @@ package config
import (
"net"
"d7y.io/dragonfly/v2/pkg/basic/dfnet"
"golang.org/x/time/rate"
"d7y.io/dragonfly/v2/client/clientutil"
@ -42,7 +43,12 @@ var peerHostConfig = DaemonOption{
GCInterval: clientutil.Duration{Duration: DefaultGCInterval},
KeepStorage: false,
Scheduler: SchedulerOption{
NetAddrs: nil,
NetAddrs: []dfnet.NetAddr{
{
Type: dfnet.TCP,
Addr: "127.0.0.1:8002",
},
},
ScheduleTimeout: clientutil.Duration{Duration: DefaultScheduleTimeout},
},
Host: HostOption{

4
client/daemon/peer/peertask_base.go
View File

@ -684,7 +684,7 @@ func (pt *peerTask) getPieceTasks(span trace.Span, curPeerPacket *scheduler.Peer
if getErr != nil {
span.RecordError(getErr)
// fast way to exit retry
if curPeerPacket != pt.peerPacket {
if curPeerPacket.MainPeer.PeerId != pt.peerPacket.MainPeer.PeerId {
pt.Warnf("get piece tasks with error: %s, but peer packet changed, switch to new peer packet, current destPeer %s, new destPeer %s", getErr,
curPeerPacket.MainPeer.PeerId, pt.peerPacket.MainPeer.PeerId)
peerPacketChanged = true
@ -709,7 +709,7 @@ func (pt *peerTask) getPieceTasks(span trace.Span, curPeerPacket *scheduler.Peer
pt.Errorf("send piece result error: %s, code: %d", peer.PeerId, er)
}
// fast way to exit retry
if curPeerPacket != pt.peerPacket {
if curPeerPacket.MainPeer.PeerId != pt.peerPacket.MainPeer.PeerId {
pt.Warnf("get empty pieces and peer packet changed, switch to new peer packet, current destPeer %s, new destPeer %s",
curPeerPacket.MainPeer.PeerId, pt.peerPacket.MainPeer.PeerId)
peerPacketChanged = true

2
cmd/dependency/dependency.go
View File

@ -99,7 +99,7 @@ func InitMonitor(verbose bool, pprofPort int, jaeger string) func() {
pprofPort, _ = freeport.GetFreePort()
}
debugAddr := fmt.Sprintf("localhost:%d", pprofPort)
debugAddr := fmt.Sprintf("%s:%d", iputils.HostIP, pprofPort)
viewer.SetConfiguration(viewer.WithAddr(debugAddr))
logger.With("pprof", fmt.Sprintf("http://%s/debug/pprof", debugAddr),

7
pkg/rpc/client.go
View File

@ -214,7 +214,10 @@ func (conn *Connection) findCandidateClientConn(key string, exclusiveNodes ...st
}
if selected {
if client, ok := conn.node2ClientMap.Load(node); ok {
return client.(*candidateClient), nil
return &candidateClient{
node: candidateNode,
Ref: client,
}, nil
}
}
}
@ -226,7 +229,7 @@ func (conn *Connection) findCandidateClientConn(key string, exclusiveNodes ...st
if len(ringNodes) == 0 {
return nil, dferrors.ErrNoCandidateNode
}
candidateNodes := make([]string, 0, 0)
candidateNodes := make([]string, 0)
for _, ringNode := range ringNodes {
candidate := true
for _, exclusiveNode := range exclusiveNodes {

15
pkg/rpc/scheduler/client/peer_packet_stream.go
View File

@ -19,7 +19,6 @@ package client
import (
"context"
"io"
"time"
"github.com/pkg/errors"
"google.golang.org/grpc"
@ -56,7 +55,7 @@ func newPeerPacketStream(ctx context.Context, sc *schedulerClient, hashKey strin
pps := &peerPacketStream{
sc: sc,
ctx: ctx,
ctx: context.Background(),
hashKey: hashKey,
ptr: ptr,
opts: opts,
@ -126,9 +125,9 @@ func (pps *peerPacketStream) retryRecv(cause error) (*scheduler.PeerPacket, erro
if err != nil {
return nil, err
}
timeCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_, err = client.RegisterPeerTask(timeCtx, pps.ptr)
//timeCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
//defer cancel()
_, err = client.RegisterPeerTask(pps.ctx, pps.ptr)
if err != nil {
return nil, err
}
@ -198,9 +197,9 @@ func (pps *peerPacketStream) replaceClient(cause error) error {
if err != nil {
return nil, err
}
timeCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
_, err = client.RegisterPeerTask(timeCtx, pps.ptr)
//timeCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
//defer cancel()
_, err = client.RegisterPeerTask(pps.ctx, pps.ptr)
if err != nil {
return nil, err
}

77
scheduler/core/events.go
View File

@ -74,11 +74,7 @@ func (s *state) start() {
s.waitScheduleParentPeerQueue.AddAfter(peer, time.Second)
continue
}
if peer.PacketChan == nil {
logger.Errorf("waitScheduleParentPeerQueue: there is no packet chan associated with peer %s", peer.PeerID)
return
}
peer.PacketChan <- constructSuccessPeerPacket(peer, parent, candidates)
peer.SendSchedulePacket(constructSuccessPeerPacket(peer, parent, candidates))
logger.WithTaskAndPeerID(peer.Task.TaskID,
peer.PeerID).Debugf("waitScheduleParentPeerQueue: peer has left from waitScheduleParentPeerQueue because it has scheduled new parent %v", parent)
s.waitScheduleParentPeerQueue.Done(v)
@ -104,15 +100,11 @@ func (e startReportPieceResultEvent) apply(s *state) {
s.waitScheduleParentPeerQueue.AddAfter(e.peer, time.Second)
return
}
if e.peer.PacketChan == nil {
logger.Errorf("start report piece result: there is no packet chan associated with peer %s", e.peer.PeerID)
return
}
e.peer.PacketChan <- constructSuccessPeerPacket(e.peer, parent, candidates)
e.peer.SendSchedulePacket(constructSuccessPeerPacket(e.peer, parent, candidates))
}
func (e startReportPieceResultEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
type peerDownloadPieceSuccessEvent struct {
@ -140,17 +132,13 @@ func (e peerDownloadPieceSuccessEvent) apply(s *state) {
if oldParent != nil {
candidates = append(candidates, oldParent)
}
if e.peer.PacketChan == nil {
logger.Errorf("peerDownloadPieceSuccessEvent: there is no packet chan with peer %s", e.peer.PeerID)
return
}
// TODO if parentPeer is equal with oldParent, need schedule again ?
e.peer.PacketChan <- constructSuccessPeerPacket(e.peer, parentPeer, candidates)
e.peer.SendSchedulePacket(constructSuccessPeerPacket(e.peer, parentPeer, candidates))
return
}
func (e peerDownloadPieceSuccessEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
type peerDownloadPieceFailEvent struct {
@ -183,7 +171,7 @@ func (e peerDownloadPieceFailEvent) apply(s *state) {
}
}
func (e peerDownloadPieceFailEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
type peerReplaceParentEvent struct {
@ -191,7 +179,7 @@ type peerReplaceParentEvent struct {
}
func (e peerReplaceParentEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
func (e peerReplaceParentEvent) apply(s *state) {
@ -226,20 +214,13 @@ func (e peerDownloadSuccessEvent) apply(s *state) {
removePeerFromCurrentTree(e.peer, s)
children := s.sched.ScheduleChildren(e.peer)
for _, child := range children {
if child.PacketChan == nil {
logger.Debugf("reportPeerSuccessResult: there is no packet chan with peer %s", e.peer.PeerID)
continue
}
child.PacketChan <- constructSuccessPeerPacket(child, e.peer, nil)
}
if e.peer.PacketChan != nil {
close(e.peer.PacketChan)
e.peer.PacketChan = nil
child.SendSchedulePacket(constructSuccessPeerPacket(child, e.peer, nil))
}
e.peer.UnBindSendChannel()
}
func (e peerDownloadSuccessEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
type peerDownloadFailEvent struct {
@ -260,22 +241,14 @@ func (e peerDownloadFailEvent) apply(s *state) {
s.waitScheduleParentPeerQueue.AddAfter(e.peer, time.Second)
return true
}
if child.PacketChan == nil {
logger.Warnf("reportPeerFailResult: there is no packet chan associated with peer %s", e.peer.PeerID)
return true
}
child.PacketChan <- constructSuccessPeerPacket(child, parent, candidates)
child.SendSchedulePacket(constructSuccessPeerPacket(child, parent, candidates))
return true
})
if e.peer.PacketChan != nil {
close(e.peer.PacketChan)
e.peer.PacketChan = nil
}
s.peerManager.Delete(e.peer.PeerID)
}
func (e peerDownloadFailEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
type peerLeaveEvent struct {
@ -289,7 +262,7 @@ func (e peerLeaveEvent) apply(s *state) {
}
func (e peerLeaveEvent) hashKey() string {
return e.peer.PeerID
return e.peer.Task.TaskID
}
func constructSuccessPeerPacket(peer *types.Peer, parent *types.Peer, candidates []*types.Peer) *schedulerRPC.PeerPacket {
@ -337,11 +310,7 @@ func handlePeerLeave(peer *types.Peer, s *state) {
s.waitScheduleParentPeerQueue.AddAfter(child, time.Second)
return true
}
if child.PacketChan == nil {
logger.Debugf("handlePeerLeave: there is no packet chan with peer %s", child.PeerID)
return true
}
child.PacketChan <- constructSuccessPeerPacket(child, parent, candidates)
child.SendSchedulePacket(constructSuccessPeerPacket(child, parent, candidates))
return true
})
s.peerManager.Delete(peer.PeerID)
@ -355,22 +324,14 @@ func handleReplaceParent(peer *types.Peer, s *state) {
s.waitScheduleParentPeerQueue.AddAfter(peer, time.Second)
return
}
if peer.PacketChan == nil {
logger.Errorf("handleReplaceParent: there is no packet chan with peer %s", peer.PeerID)
return
}
peer.PacketChan <- constructSuccessPeerPacket(peer, parent, candidates)
peer.SendSchedulePacket(constructSuccessPeerPacket(peer, parent, candidates))
}
func handleSeedTaskFail(task *types.Task) {
if task.IsFail() {
task.ListPeers().Range(func(data sortedlist.Item) bool {
peer := data.(*types.Peer)
if peer.PacketChan == nil {
logger.Debugf("taskSeedFailEvent: there is no packet chan with peer %s", peer.PeerID)
return true
}
peer.PacketChan <- constructFailPeerPacket(peer, dfcodes.CdnError)
peer.SendSchedulePacket(constructFailPeerPacket(peer, dfcodes.CdnError))
return true
})
}
@ -383,11 +344,7 @@ func removePeerFromCurrentTree(peer *types.Peer, s *state) {
if parent != nil {
children := s.sched.ScheduleChildren(parent)
for _, child := range children {
if child.PacketChan == nil {
logger.Debugf("removePeerFromCurrentTree: there is no packet chan with peer %s", peer.PeerID)
continue
}
child.PacketChan <- constructSuccessPeerPacket(child, peer, nil)
child.SendSchedulePacket(constructSuccessPeerPacket(child, peer, nil))
}
}
}

2
scheduler/core/monitor.go
View File

@ -87,7 +87,7 @@ func (m *monitor) printDebugInfo() string {
parentNode = peer.GetParent().PeerID
}
table.Append([]string{peer.PeerID, peer.Task.URL[len(peer.Task.URL)-15 : len(peer.Task.URL)-5], parentNode, peer.GetStatus().String(),
table.Append([]string{peer.PeerID, peer.Task.URL[len(peer.Task.URL)-15 : len(peer.Task.URL)], parentNode, peer.GetStatus().String(),
peer.CreateTime.String(),
strconv.Itoa(int(peer.GetFinishedNum())),
strconv.FormatBool(peer.IsSuccess()), strconv.Itoa(peer.Host.GetFreeUploadLoad())})

3
scheduler/core/scheduler_service.go
View File

@ -184,6 +184,9 @@ func (s *SchedulerService) GetOrCreateTask(ctx context.Context, task *types.Task
if task.IsFrozen() {
task.SetStatus(types.TaskStatusRunning)
}
//if s.config.DisableCDN {
// TODO NeedBackSource
//}
go func() {
if err := s.cdnManager.StartSeedTask(ctx, task); err != nil {
if !task.IsSuccess() {

2
scheduler/core/worker.go
View File

@ -64,7 +64,7 @@ func (wg *workerGroup) send(e event) bool {
func (wg *workerGroup) stop() {
close(wg.stopCh)
wg.s.start()
wg.s.stop()
for _, worker := range wg.workerList {
worker.stop()
}

7
scheduler/daemon/cdn/d7y/manager.go
View File

@ -114,7 +114,7 @@ func (cm *manager) StartSeedTask(ctx context.Context, task *types.Task) error {
}
func (cm *manager) receivePiece(task *types.Task, stream *client.PieceSeedStream) error {
var once sync.Once
var initialized bool
var cdnPeer *types.Peer
for {
piece, err := stream.Recv()
@ -138,9 +138,10 @@ func (cm *manager) receivePiece(task *types.Task, stream *client.PieceSeedStream
return errors.Wrapf(ErrCDNInvokeFail, "receive piece from cdn: %v", err)
}
if piece != nil {
once.Do(func() {
if !initialized {
cdnPeer, err = cm.initCdnPeer(task, piece)
})
initialized = true
}
if err != nil || cdnPeer == nil {
return err
}

6
scheduler/daemon/peer/manager.go
View File

@ -70,11 +70,7 @@ func (m *manager) Delete(peerID string) {
if ok {
peer.Host.DeletePeer(peerID)
peer.Task.DeletePeer(peer)
if peer.PacketChan != nil {
close(peer.PacketChan)
logger.Infof("close peer %s stream", peerID)
peer.PacketChan = nil
}
peer.UnBindSendChannel()
m.peerMap.Delete(peerID)
}
return

41
scheduler/server/service/scheduler_server.go
View File

@ -33,6 +33,8 @@ import (
"d7y.io/dragonfly/v2/scheduler/core"
"d7y.io/dragonfly/v2/scheduler/types"
"golang.org/x/sync/errgroup"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
type SchedulerServer struct {
@ -118,24 +120,33 @@ func (s *SchedulerServer) RegisterPeerTask(ctx context.Context, request *schedul
func (s *SchedulerServer) ReportPieceResult(stream scheduler.Scheduler_ReportPieceResultServer) error {
peerPacketChan := make(chan *scheduler.PeerPacket, 1)
var once sync.Once
g, ctx := errgroup.WithContext(context.Background())
stopCh := make(chan struct{})
g.Go(func() error {
for {
var peer *types.Peer
var initialized bool
ctx, cancel := context.WithCancel(stream.Context())
g, ctx := errgroup.WithContext(ctx)
var once sync.Once
g.Go(func() error {
defer func() {
cancel()
once.Do(peer.UnBindSendChannel)
}()
for {
select {
case <-ctx.Done():
return nil
case <-stopCh:
return nil
default:
pieceResult, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return dferrors.Newf(dfcodes.SchedPeerPieceResultReportFail, "peer piece result report error")
if status.Code(err) == codes.Canceled {
if peer != nil {
logger.Info("peer %s canceled", peer.PeerID)
return nil
}
}
return dferrors.Newf(dfcodes.SchedPeerPieceResultReportFail, "peer piece result report error: %v", err)
}
logger.Debugf("report piece result %v of peer %s", pieceResult, pieceResult.SrcPid)
var ok bool
@ -143,10 +154,11 @@ func (s *SchedulerServer) ReportPieceResult(stream scheduler.Scheduler_ReportPie
if !ok {
return dferrors.Newf(dfcodes.SchedPeerNotFound, "peer %s not found", pieceResult.SrcPid)
}
once.Do(func() {
if !initialized {
peer.BindSendChannel(peerPacketChan)
peer.SetStatus(types.PeerStatusRunning)
})
initialized = true
}
if err := s.service.HandlePieceResult(peer, pieceResult); err != nil {
logger.Errorf("handle piece result %v fail: %v", pieceResult, err)
}
@ -155,21 +167,22 @@ func (s *SchedulerServer) ReportPieceResult(stream scheduler.Scheduler_ReportPie
})
g.Go(func() error {
defer func() {
cancel()
once.Do(peer.UnBindSendChannel)
}()
for {
select {
case <-ctx.Done():
return nil
case <-stopCh:
return nil
case pp, ok := <-peerPacketChan:
if !ok {
close(stopCh)
return nil
}
err := stream.Send(pp)
if err != nil {
logger.Errorf("send peer %s schedule packet %v failed: %v", pp.SrcPid, pp, err)
return err
return dferrors.Newf(dfcodes.SchedPeerPieceResultReportFail, "peer piece result report error: %v", err)
}
}
}

26
scheduler/types/peer.go
View File

@ -59,8 +59,10 @@ type Peer struct {
Task *Task
// Host specifies
Host *PeerHost
// bindPacketChan
bindPacketChan bool
// PacketChan send schedulerPacket to peer client
PacketChan chan *scheduler.PeerPacket
packetChan chan *scheduler.PeerPacket
// createTime
CreateTime time.Time
// finishedNum specifies downloaded finished piece number
@ -293,11 +295,27 @@ func (peer *Peer) SetStatus(status PeerStatus) {
func (peer *Peer) BindSendChannel(packetChan chan *scheduler.PeerPacket) {
peer.lock.Lock()
defer peer.lock.Unlock()
peer.PacketChan = packetChan
peer.bindPacketChan = true
peer.packetChan = packetChan
}
func (peer *Peer) GetSendChannel() chan *scheduler.PeerPacket {
return peer.PacketChan
func (peer *Peer) UnBindSendChannel() {
peer.lock.Lock()
defer peer.lock.Unlock()
if peer.bindPacketChan {
if peer.packetChan != nil {
close(peer.packetChan)
}
peer.bindPacketChan = false
}
}
func (peer *Peer) SendSchedulePacket(packet *scheduler.PeerPacket) {
peer.lock.Lock()
defer peer.lock.Unlock()
if peer.bindPacketChan {
peer.packetChan <- packet
}
}
func (peer *Peer) IsRunning() bool {