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99 lines
2.4 KiB
99 lines
2.4 KiB
package weed_server
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import (
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"fmt"
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"time"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
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"github.com/chrislusf/seaweedfs/weed/security"
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"github.com/chrislusf/seaweedfs/weed/storage"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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)
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func (vs *VolumeServer) heartbeat() {
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glog.V(0).Infof("Volume server bootstraps with master %s", vs.GetMasterNode())
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vs.masterNodes = storage.NewMasterNodes(vs.masterNode)
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vs.store.SetDataCenter(vs.dataCenter)
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vs.store.SetRack(vs.rack)
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for {
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err := vs.doHeartbeat(time.Duration(vs.pulseSeconds) * time.Second)
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if err != nil {
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glog.V(0).Infof("heartbeat error: %v", err)
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time.Sleep(time.Duration(vs.pulseSeconds) * time.Second)
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}
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}
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}
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func (vs *VolumeServer) doHeartbeat(sleepInterval time.Duration) error {
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vs.masterNodes.Reset()
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masterNode, err := vs.masterNodes.FindMaster()
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if err != nil {
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return fmt.Errorf("No master found: %v", err)
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}
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grpcConection, err := grpc.Dial(masterNode, grpc.WithInsecure())
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if err != nil {
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return fmt.Errorf("fail to dial: %v", err)
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}
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defer grpcConection.Close()
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client := master_pb.NewSeaweedClient(grpcConection)
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stream, err := client.SendHeartbeat(context.Background())
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if err != nil {
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glog.V(0).Infof("%v.SendHeartbeat(_) = _, %v", client, err)
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return err
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}
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vs.SetMasterNode(masterNode)
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glog.V(0).Infof("Heartbeat to %s", masterNode)
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vs.store.Client = stream
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defer func() { vs.store.Client = nil }()
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doneChan := make(chan error, 1)
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go func() {
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for {
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in, err := stream.Recv()
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if err != nil {
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doneChan <- err
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return
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}
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if in.GetVolumeSizeLimit() != 0 {
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vs.store.VolumeSizeLimit = in.GetVolumeSizeLimit()
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}
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if in.GetSecretKey() != "" {
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vs.guard.SecretKey = security.Secret(in.GetSecretKey())
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}
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if in.GetLeader() != "" && masterNode != in.GetLeader() {
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vs.masterNodes.SetPossibleLeader(in.GetLeader())
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doneChan <- nil
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return
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}
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}
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}()
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if err = stream.Send(vs.store.CollectHeartbeat()); err != nil {
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glog.V(0).Infof("Volume Server Failed to talk with master %s: %v", masterNode, err)
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return err
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}
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tickChan := time.Tick(sleepInterval)
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for {
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select {
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case <-tickChan:
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if err = stream.Send(vs.store.CollectHeartbeat()); err != nil {
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glog.V(0).Infof("Volume Server Failed to talk with master %s: %v", masterNode, err)
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return err
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}
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case err := <-doneChan:
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glog.V(0).Infof("Volume Server heart beat stops with %v", err)
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return err
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}
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}
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}
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