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dynamically connect to a filer

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This commit is contained in:
chrislu
2022-07-12 02:00:54 -07:00
parent 9f479aab98
commit 74f60f246f
6 changed files with 72 additions and 128 deletions
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72
weed/mq/broker/broker_grpc_server_discovery.go
View File

@@ -1,72 +0,0 @@
package broker
import (
"context"
"github.com/chrislusf/seaweedfs/weed/cluster"
"github.com/chrislusf/seaweedfs/weed/pb"
"time"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
)
func (broker *MessageQueueBroker) checkFilers() {
// contact a filer about masters
var masters []pb.ServerAddress
found := false
for !found {
for _, filer := range broker.option.Filers {
err := broker.withFilerClient(false, filer, func(client filer_pb.SeaweedFilerClient) error {
resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
if err != nil {
return err
}
for _, m := range resp.Masters {
masters = append(masters, pb.ServerAddress(m))
}
return nil
})
if err == nil {
found = true
break
}
glog.V(0).Infof("failed to read masters from %+v: %v", broker.option.Filers, err)
time.Sleep(time.Second)
}
}
glog.V(0).Infof("received master list: %s", masters)
// contact each masters for filers
var filers []pb.ServerAddress
found = false
for !found {
for _, master := range masters {
err := broker.withMasterClient(false, master, func(client master_pb.SeaweedClient) error {
resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
ClientType: cluster.FilerType,
})
if err != nil {
return err
}
for _, clusterNode := range resp.ClusterNodes {
filers = append(filers, pb.ServerAddress(clusterNode.Address))
}
return nil
})
if err == nil {
found = true
break
}
glog.V(0).Infof("failed to list filers: %v", err)
time.Sleep(time.Second)
}
}
glog.V(0).Infof("received filer list: %s", filers)
broker.option.Filers = filers
}

40
weed/mq/broker/broker_server.go
View File

@@ -5,6 +5,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
"github.com/chrislusf/seaweedfs/weed/wdclient"
"google.golang.org/grpc"
"time"
"github.com/chrislusf/seaweedfs/weed/pb"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
@@ -16,7 +17,6 @@ type MessageQueueBrokerOption struct {
FilerGroup string
DataCenter string
Rack string
Filers []pb.ServerAddress
DefaultReplication string
MaxMB int
Ip string
@@ -29,6 +29,8 @@ type MessageQueueBroker struct {
option *MessageQueueBrokerOption
grpcDialOption grpc.DialOption
MasterClient *wdclient.MasterClient
filers map[pb.ServerAddress]struct{}
currentFiler pb.ServerAddress
}
func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (mqBroker *MessageQueueBroker, err error) {
@@ -37,15 +39,47 @@ func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.Dial
option: option,
grpcDialOption: grpcDialOption,
MasterClient: wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, option.Rack, option.Masters),
filers: make(map[pb.ServerAddress]struct{}),
}
mqBroker.checkFilers()
mqBroker.MasterClient.OnPeerUpdate = mqBroker.OnBrokerUpdate
go mqBroker.MasterClient.KeepConnectedToMaster()
existingNodes := cluster.ListExistingPeerUpdates(mqBroker.MasterClient.GetMaster(), grpcDialOption, option.FilerGroup, cluster.FilerType)
for _, newNode := range existingNodes {
mqBroker.OnBrokerUpdate(newNode, time.Now())
}
return mqBroker, nil
}
func (broker *MessageQueueBroker) OnBrokerUpdate(update *master_pb.ClusterNodeUpdate, startFrom time.Time) {
if update.NodeType != cluster.FilerType {
return
}
address := pb.ServerAddress(update.Address)
if update.IsAdd {
broker.filers[address] = struct{}{}
if broker.currentFiler == "" {
broker.currentFiler = address
}
} else {
delete(broker.filers, address)
if broker.currentFiler == address {
for filer, _ := range broker.filers {
broker.currentFiler = filer
break
}
}
}
}
func (broker *MessageQueueBroker) GetFiler() pb.ServerAddress {
return broker.currentFiler
}
func (broker *MessageQueueBroker) withFilerClient(streamingMode bool, filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
return pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn)