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Merge branch 'flexible_filer_addition'

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This commit is contained in:
Chris Lu 2021-11-06 14:25:06 -07:00
parent 04663c3611 e0fc2898e9
commit 751a7073e3
8 changed files with 211 additions and 137 deletions
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4
weed/election/cluster.go
View file

@ -85,6 +85,10 @@ func (cluster *Cluster) ListClusterNode(nodeType string) (nodes []*ClusterNode)
return
}
func (cluster *Cluster) IsOneLeader(address pb.ServerAddress) bool {
return cluster.leaders.isOneLeader(address)
}
func (cluster *Cluster) ensureLeader(isAdd bool, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
if isAdd {
if cluster.leaders.addLeaderIfVacant(address) {

45
weed/filer/filer.go
View file

@ -4,6 +4,7 @@ import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"os"
"strings"
"time"
@ -66,22 +67,38 @@ func NewFiler(masters []pb.ServerAddress, grpcDialOption grpc.DialOption,
return f
}
func (f *Filer) AggregateFromPeers(self pb.ServerAddress, filers []pb.ServerAddress) {
func (f *Filer) AggregateFromPeers(self pb.ServerAddress) {
// set peers
found := false
for _, peer := range filers {
if peer == self {
found = true
f.MetaAggregator = NewMetaAggregator(f, self, f.GrpcDialOption)
f.MasterClient.OnPeerUpdate = f.MetaAggregator.OnPeerUpdate
for _, peerUpdate := range f.ListExistingPeerUpdates() {
f.MetaAggregator.OnPeerUpdate(peerUpdate)
}
}
func (f *Filer) ListExistingPeerUpdates() (existingNodes []*master_pb.ClusterNodeUpdate){
if grpcErr := pb.WithMasterClient(f.MasterClient.GetMaster(), f.GrpcDialOption, func(client master_pb.SeaweedClient) error {
resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
ClientType: "filer",
})
glog.V(0).Infof("the cluster has %d filers\n", len(resp.ClusterNodes))
for _, node := range resp.ClusterNodes {
existingNodes = append(existingNodes, &master_pb.ClusterNodeUpdate{
NodeType: "filer",
Address: node.Address,
IsLeader: node.IsLeader,
IsAdd: true,
})
}
return err
}); grpcErr != nil {
glog.V(0).Infof("connect to %s: %v", f.MasterClient.GetMaster(), grpcErr)
}
if !found {
filers = append(filers, self)
}
f.MetaAggregator = NewMetaAggregator(filers, f.GrpcDialOption)
f.MetaAggregator.StartLoopSubscribe(f, self)
return
}
func (f *Filer) SetStore(store FilerStore) {
@ -117,7 +134,7 @@ func (fs *Filer) GetMaster() pb.ServerAddress {
return fs.MasterClient.GetMaster()
}
func (fs *Filer) KeepConnectedToMaster() {
func (fs *Filer) KeepMasterClientConnected() {
fs.MasterClient.KeepConnectedToMaster()
}

52
weed/filer/meta_aggregator.go
View file

@ -3,6 +3,7 @@ package filer
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/util"
"io"
"sync"
@ -18,9 +19,13 @@ import (
)
type MetaAggregator struct {
filers []pb.ServerAddress
grpcDialOption grpc.DialOption
MetaLogBuffer *log_buffer.LogBuffer
filer *Filer
self pb.ServerAddress
isLeader bool
grpcDialOption grpc.DialOption
MetaLogBuffer *log_buffer.LogBuffer
peerStatues map[pb.ServerAddress]struct{}
peerStatuesLock sync.Mutex
// notifying clients
ListenersLock sync.Mutex
ListenersCond *sync.Cond
@ -28,10 +33,12 @@ type MetaAggregator struct {
// MetaAggregator only aggregates data "on the fly". The logs are not re-persisted to disk.
// The old data comes from what each LocalMetadata persisted on disk.
func NewMetaAggregator(filers []pb.ServerAddress, grpcDialOption grpc.DialOption) *MetaAggregator {
func NewMetaAggregator(filer *Filer, self pb.ServerAddress, grpcDialOption grpc.DialOption) *MetaAggregator {
t := &MetaAggregator{
filers: filers,
filer: filer,
self: self,
grpcDialOption: grpcDialOption,
peerStatues: make(map[pb.ServerAddress]struct{}),
}
t.ListenersCond = sync.NewCond(&t.ListenersLock)
t.MetaLogBuffer = log_buffer.NewLogBuffer("aggr", LogFlushInterval, nil, func() {
@ -40,10 +47,35 @@ func NewMetaAggregator(filers []pb.ServerAddress, grpcDialOption grpc.DialOption
return t
}
func (ma *MetaAggregator) StartLoopSubscribe(f *Filer, self pb.ServerAddress) {
for _, filer := range ma.filers {
go ma.subscribeToOneFiler(f, self, filer)
func (ma *MetaAggregator) OnPeerUpdate(update *master_pb.ClusterNodeUpdate) {
if update.NodeType != "filer" {
return
}
address := pb.ServerAddress(update.Address)
if update.IsAdd {
// every filer should subscribe to a new filer
ma.setActive(address, true)
go ma.subscribeToOneFiler(ma.filer, ma.self, address)
} else {
ma.setActive(address, false)
}
}
func (ma *MetaAggregator) setActive(address pb.ServerAddress, isActive bool) {
ma.peerStatuesLock.Lock()
defer ma.peerStatuesLock.Unlock()
if isActive {
ma.peerStatues[address] = struct{}{}
} else {
delete(ma.peerStatues, address)
}
}
func (ma *MetaAggregator) isActive(address pb.ServerAddress)(isActive bool) {
ma.peerStatuesLock.Lock()
defer ma.peerStatuesLock.Unlock()
_, isActive = ma.peerStatues[address]
return
}
func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self pb.ServerAddress, peer pb.ServerAddress) {
@ -149,6 +181,10 @@ func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self pb.ServerAddress, p
}
})
if !ma.isActive(peer) {
glog.V(0).Infof("stop subscribing remote %s meta change", peer)
return
}
if err != nil {
glog.V(0).Infof("subscribing remote %s meta change: %v", peer, err)
time.Sleep(1733 * time.Millisecond)

1
weed/pb/master.proto
View file

@ -304,6 +304,7 @@ message ListClusterNodesResponse {
message ClusterNode {
string address = 1;
string version = 2;
bool is_leader = 3;
}
repeated ClusterNode cluster_nodes = 1;
}

228
weed/pb/master_pb/master.pb.go
View file

@ -3063,8 +3063,9 @@ type ListClusterNodesResponse_ClusterNode struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
IsLeader bool `protobuf:"varint,3,opt,name=is_leader,json=isLeader,proto3" json:"is_leader,omitempty"`
}
func (x *ListClusterNodesResponse_ClusterNode) Reset() {
@ -3113,6 +3114,13 @@ func (x *ListClusterNodesResponse_ClusterNode) GetVersion() string {
return ""
}
func (x *ListClusterNodesResponse_ClusterNode) GetIsLeader() bool {
if x != nil {
return x.IsLeader
}
return false
}
var File_master_proto protoreflect.FileDescriptor
var file_master_proto_rawDesc = []byte{
@ -3558,7 +3566,7 @@ var file_master_proto_rawDesc = []byte{
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@ -3566,118 +3574,120 @@ var file_master_proto_rawDesc = []byte{
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}
var (

4
weed/server/filer_server.go
View file

@ -108,7 +108,7 @@ func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption)
fs.checkWithMaster()
go stats.LoopPushingMetric("filer", string(fs.option.Host), fs.metricsAddress, fs.metricsIntervalSec)
go fs.filer.KeepConnectedToMaster()
go fs.filer.KeepMasterClientConnected()
v := util.GetViper()
if !util.LoadConfiguration("filer", false) {
@ -143,7 +143,7 @@ func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption)
readonlyMux.HandleFunc("/", fs.readonlyFilerHandler)
}
fs.filer.AggregateFromPeers(option.Host, option.Filers)
fs.filer.AggregateFromPeers(option.Host)
fs.filer.LoadBuckets()

1
weed/server/master_grpc_server_cluster.go
View file

@ -14,6 +14,7 @@ func (ms *MasterServer) ListClusterNodes(ctx context.Context, req *master_pb.Lis
resp.ClusterNodes = append(resp.ClusterNodes, &master_pb.ListClusterNodesResponse_ClusterNode{
Address: string(node.Address),
Version: node.Version,
IsLeader: ms.Cluster.IsOneLeader(node.Address),
})
}
return resp, nil

13
weed/wdclient/masterclient.go
View file

@ -21,6 +21,8 @@ type MasterClient struct {
grpcDialOption grpc.DialOption
vidMap
OnPeerUpdate func(update *master_pb.ClusterNodeUpdate)
}
func NewMasterClient(grpcDialOption grpc.DialOption, clientType string, clientHost pb.ServerAddress, clientDataCenter string, masters []pb.ServerAddress) *MasterClient {
@ -151,10 +153,13 @@ func (mc *MasterClient) tryConnectToMaster(master pb.ServerAddress) (nextHintedL
if resp.ClusterNodeUpdate != nil {
update := resp.ClusterNodeUpdate
if update.IsAdd {
glog.V(0).Infof("+ %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader)
} else {
glog.V(0).Infof("- %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader)
if mc.OnPeerUpdate != nil {
if update.IsAdd {
glog.V(0).Infof("+ %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader)
} else {
glog.V(0).Infof("- %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader)
}
mc.OnPeerUpdate(update)
}
}