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feat(standby_server): save/load Running into disk

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This commit is contained in:
Yicheng Qin 2014-05-16 00:10:15 -04:00
parent 35cc81e22f
commit a824be4c14
2 changed files with 7 additions and 8 deletions
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2
etcd/etcd.go
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@ -240,7 +240,7 @@ func (e *Etcd) Run() {
peerTLSConfig := server.TLSServerConfig(e.Config.PeerTLSInfo())
etcdTLSConfig := server.TLSServerConfig(e.Config.EtcdTLSInfo())
if !e.StandbyServer.ClusterRecorded() {
if !e.StandbyServer.IsRunning() {
startPeerServer, possiblePeers, err := e.PeerServer.FindCluster(e.Config.Discovery, e.Config.Peers)
if err != nil {
log.Fatal(err)

13
server/standby_server.go
View File

@ -29,6 +29,7 @@ type StandbyServerConfig struct {
}
type standbyInfo struct {
Running bool
Cluster []*machineMessage
SyncInterval float64
}
@ -40,8 +41,7 @@ type StandbyServer struct {
standbyInfo
joinIndex uint64
file *os.File
recorded bool
file *os.File
removeNotify chan bool
started bool
@ -80,6 +80,7 @@ func (s *StandbyServer) Start() {
defer s.routineGroup.Done()
s.monitorCluster()
}()
s.Running = true
}
// Stop stops the server gracefully.
@ -97,6 +98,7 @@ func (s *StandbyServer) Stop() {
if err := s.clearStandbyInfo(); err != nil {
log.Warnf("error clearing cluster info for standby")
}
s.Running = false
}
// RemoveNotify notifies the server is removed from standby mode and ready
@ -109,8 +111,8 @@ func (s *StandbyServer) ClientHTTPHandler() http.Handler {
return http.HandlerFunc(s.redirectRequests)
}
func (s *StandbyServer) ClusterRecorded() bool {
return s.recorded
func (s *StandbyServer) IsRunning() bool {
return s.Running
}
func (s *StandbyServer) ClusterURLs() []string {
@ -304,7 +306,6 @@ func (s *StandbyServer) loadStandbyInfo() ([]*machineMessage, error) {
if err := json.NewDecoder(s.file).Decode(&s.standbyInfo); err != nil {
return nil, err
}
s.recorded = true
return s.standbyInfo.Cluster, nil
}
@ -318,7 +319,6 @@ func (s *StandbyServer) saveStandbyInfo() error {
if err := s.file.Sync(); err != nil {
return err
}
s.recorded = true
return nil
}
@ -329,6 +329,5 @@ func (s *StandbyServer) clearStandbyInfo() error {
if err := s.file.Truncate(0); err != nil {
return err
}
s.recorded = false
return nil
}