func (this *Sheep) Restart() (err error) {
if err = this.Stop(); err == nil {
err = this.Start()
} else {
log.Log("stop err:", err.Error())
}
return err
}
func (this *electServer) InitRaftCluster(leader string) (err error) {
if leader != "" {
if !this.raftServer.IsLogEmpty() {
log.Log("cannot join with exist log")
return
}
if err = this.JoinLeader(leader); err != nil {
return
}
} else if this.raftServer.IsLogEmpty() {
if err = this.JoinSelf(); err != nil {
return
}
} else {
log.Notice("recovered from log")
}
return
}
func (this *Sheep) Stop() (err error) {
if this.cmd.Process == nil {
return errors.New(fmt.Sprintf("%s not started.", this.Name))
}
if this.cmd.ProcessState == nil {
log.Log("process state unvailable")
} else if this.cmd.ProcessState.Exited() {
return errors.New(fmt.Sprintf("%s has stoped.", this.Name))
}
this.Status = constant.STATUS_STOPING
log.Logf("signal:%d", this.StopSignal)
if err = this.cmd.Process.Signal(syscall.Signal(this.StopSignal)); err == nil {
this.Status = constant.STATUS_STOPPED
} else {
log.Error("stop faild:", err.Error())
}
return err
}