Golang glog.Error函数代码示例

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本文整理汇总了Golang中github.com/coreos/flannel/Godeps/_workspace/src/github.com/golang/glog.Error函数的典型用法代码示例。如果您正苦于以下问题：Golang Error函数的具体用法？Golang Error怎么用？Golang Error使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了Error函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: run

func run(be backend.Backend, exit chan int) {
	var err error
	defer func() {
		if err == nil || err == task.ErrCanceled {
			exit <- 0
		} else {
			log.Error(err)
			exit <- 1
		}
	}()

	iface, ipaddr, err := lookupIface()
	if err != nil {
		return
	}

	if iface.MTU == 0 {
		err = fmt.Errorf("Failed to determine MTU for %s interface", ipaddr)
		return
	}

	log.Infof("Using %s as external interface", ipaddr)

	sn, err := be.Init(iface, ipaddr, opts.ipMasq)
	if err != nil {
		log.Error("Could not init %v backend: %v", be.Name(), err)
		return
	}

	writeSubnetFile(sn)
	daemon.SdNotify("READY=1")

	log.Infof("%s mode initialized", be.Name())
	be.Run()
}

开发者ID:hingstarne，项目名称:flannel，代码行数:35，代码来源:main.go

示例2: Init

func (n *Network) Init(ctx context.Context, iface *net.Interface, iaddr net.IP, eaddr net.IP) *backend.SubnetDef {
	var be backend.Backend
	var sn *backend.SubnetDef

	steps := []func() error{
		func() (err error) {
			n.Config, err = n.sm.GetNetworkConfig(ctx, n.Name)
			if err != nil {
				log.Error("Failed to retrieve network config: ", err)
			}
			return
		},

		func() (err error) {
			be, err = newBackend(n.sm, n.Name, n.Config)
			if err != nil {
				log.Error("Failed to create backend: ", err)
			} else {
				n.be = be
			}
			return
		},

		func() (err error) {
			sn, err = be.Init(ctx, iface, iaddr, eaddr)
			if err != nil {
				log.Errorf("Failed to initialize network %v (type %v): %v", n.Name, n.Config.BackendType, err)
			}
			n.lease = sn.Lease
			return
		},

		func() (err error) {
			if n.ipMasq {
				flannelNet := n.Config.Network
				if err = setupIPMasq(flannelNet); err != nil {
					log.Errorf("Failed to set up IP Masquerade for network %v: %v", n.Name, err)
				}
			}
			return
		},
	}

	for _, s := range steps {
		for ; ; time.Sleep(time.Second) {
			select {
			case <-ctx.Done():
				return nil
			default:
			}

			err := s()
			if err == nil {
				break
			}
		}
	}

	return sn
}

开发者ID:OpenSorceress，项目名称:flannel，代码行数:60，代码来源:network.go

示例3: handleInitialSubnetEvents

func (vb *VXLANBackend) handleInitialSubnetEvents(batch []subnet.Event) error {
	log.Infof("Handling initial subnet events")
	fdbTable, err := vb.dev.GetL2List()
	if err != nil {
		return fmt.Errorf("Error fetching L2 table: %v", err)
	}

	for _, fdbEntry := range fdbTable {
		log.Infof("fdb already populated with: %s %s ", fdbEntry.IP, fdbEntry.HardwareAddr)
	}

	evtMarker := make([]bool, len(batch))
	leaseAttrsList := make([]vxlanLeaseAttrs, len(batch))
	fdbEntryMarker := make([]bool, len(fdbTable))

	for i, evt := range batch {
		if evt.Lease.Attrs.BackendType != "vxlan" {
			log.Warningf("Ignoring non-vxlan subnet: type=%v", evt.Lease.Attrs.BackendType)
			evtMarker[i] = true
			continue
		}

		if err := json.Unmarshal(evt.Lease.Attrs.BackendData, &leaseAttrsList[i]); err != nil {
			log.Error("Error decoding subnet lease JSON: ", err)
			evtMarker[i] = true
			continue
		}

		for j, fdbEntry := range fdbTable {
			if evt.Lease.Attrs.PublicIP.ToIP().Equal(fdbEntry.IP) && bytes.Equal([]byte(leaseAttrsList[i].VtepMAC), []byte(fdbEntry.HardwareAddr)) {
				evtMarker[i] = true
				fdbEntryMarker[j] = true
				break
			}
		}
		vb.rts.set(evt.Lease.Subnet, net.HardwareAddr(leaseAttrsList[i].VtepMAC))
	}

	for j, marker := range fdbEntryMarker {
		if !marker && fdbTable[j].IP != nil {
			err := vb.dev.DelL2(neigh{IP: ip.FromIP(fdbTable[j].IP), MAC: fdbTable[j].HardwareAddr})
			if err != nil {
				log.Error("Delete L2 failed: ", err)
			}
		}
	}

	for i, marker := range evtMarker {
		if !marker {
			err := vb.dev.AddL2(neigh{IP: batch[i].Lease.Attrs.PublicIP, MAC: net.HardwareAddr(leaseAttrsList[i].VtepMAC)})
			if err != nil {
				log.Error("Add L2 failed: ", err)
			}

		}
	}
	return nil
}

开发者ID:rajatchopra，项目名称:flannel，代码行数:58，代码来源:vxlan.go

示例4: jsonResponse

func jsonResponse(w http.ResponseWriter, code int, v interface{}) {
	w.Header().Set("Content-Type", "application/json; charset=utf-8")
	w.WriteHeader(code)
	if err := json.NewEncoder(w).Encode(v); err != nil {
		log.Error("Error JSON encoding response: %v", err)
	}
}

开发者ID:rajatchopra，项目名称:flannel，代码行数:7，代码来源:server.go

示例5: AcquireLease

func (sm *SubnetManager) AcquireLease(extIP ip.IP4, data interface{}, cancel chan bool) (ip.IP4Net, error) {
	dataBytes, err := json.Marshal(data)
	if err != nil {
		return ip.IP4Net{}, err
	}

	var sn ip.IP4Net
	for {
		sn, err = sm.acquireLeaseOnce(extIP, string(dataBytes), cancel)
		switch {
		case err == nil:
			log.Info("Subnet lease acquired: ", sn)
			return sn, nil

		case err == task.ErrCanceled:
			return ip.IP4Net{}, err

		default:
			log.Error("Failed to acquire subnet: ", err)
		}

		select {
		case <-time.After(time.Second):

		case <-cancel:
			return ip.IP4Net{}, task.ErrCanceled
		}
	}
}

开发者ID:hingstarne，项目名称:flannel，代码行数:29，代码来源:subnet.go

示例6: AcquireLease

func (m *EtcdManager) AcquireLease(ctx context.Context, network string, attrs *LeaseAttrs) (*Lease, error) {
	config, err := m.GetNetworkConfig(ctx, network)
	if err != nil {
		return nil, err
	}

	for {
		l, err := m.acquireLeaseOnce(ctx, network, config, attrs)
		switch {
		case err == nil:
			log.Info("Subnet lease acquired: ", l.Subnet)
			return l, nil

		case err == context.Canceled, err == context.DeadlineExceeded:
			return nil, err

		default:
			log.Error("Failed to acquire subnet: ", err)
		}

		select {
		case <-time.After(time.Second):

		case <-ctx.Done():
			return nil, ctx.Err()
		}
	}
}

开发者ID:rajatchopra，项目名称:flannel，代码行数:28，代码来源:etcd.go

示例7: initAndRun

func initAndRun(ctx context.Context, sm subnet.Manager, netnames []string) {
	iface, iaddr, err := lookupIface()
	if err != nil {
		log.Error(err)
		return
	}

	if iface.MTU == 0 {
		log.Errorf("Failed to determine MTU for %s interface", iaddr)
		return
	}

	var eaddr net.IP

	if len(opts.publicIP) > 0 {
		eaddr = net.ParseIP(opts.publicIP)
	}

	if eaddr == nil {
		eaddr = iaddr
	}

	log.Infof("Using %s as external interface", iaddr)
	log.Infof("Using %s as external endpoint", eaddr)

	nets := []*network.Network{}
	for _, n := range netnames {
		nets = append(nets, network.New(sm, n, opts.ipMasq))
	}

	wg := sync.WaitGroup{}

	for _, n := range nets {
		go func(n *network.Network) {
			wg.Add(1)
			defer wg.Done()

			sn := n.Init(ctx, iface, iaddr, eaddr)
			if sn != nil {
				if isMultiNetwork() {
					path := filepath.Join(opts.subnetDir, n.Name) + ".env"
					if err := writeSubnetFile(path, n.Config.Network, sn); err != nil {
						return
					}
				} else {
					if err := writeSubnetFile(opts.subnetFile, n.Config.Network, sn); err != nil {
						return
					}
					daemon.SdNotify("READY=1")
				}

				n.Run(ctx)
				log.Infof("%v exited", n.Name)
			}
		}(n)
	}

	wg.Wait()
}

开发者ID:guoyang2011，项目名称:flannel，代码行数:59，代码来源:main.go

示例8: acquireLeaseOnce

func (sm *SubnetManager) acquireLeaseOnce(extIP ip.IP4, data string, cancel chan bool) (ip.IP4Net, error) {
	for i := 0; i < registerRetries; i++ {
		var err error
		sm.leases, err = sm.getLeases()
		if err != nil {
			return ip.IP4Net{}, err
		}

		// try to reuse a subnet if there's one that matches our IP
		for _, l := range sm.leases {
			var ba BaseAttrs
			err = json.Unmarshal([]byte(l.Data), &ba)
			if err != nil {
				log.Error("Error parsing subnet lease JSON: ", err)
			} else {
				if extIP == ba.PublicIP {
					resp, err := sm.registry.updateSubnet(l.Network.StringSep(".", "-"), data, subnetTTL)
					if err != nil {
						return ip.IP4Net{}, err
					}

					sm.myLease.Network = l.Network
					sm.leaseExp = *resp.Node.Expiration
					return l.Network, nil
				}
			}
		}

		// no existing match, grab a new one
		sn, err := sm.allocateSubnet()
		if err != nil {
			return ip.IP4Net{}, err
		}

		resp, err := sm.registry.createSubnet(sn.StringSep(".", "-"), data, subnetTTL)
		switch {
		case err == nil:
			sm.myLease.Network = sn
			sm.leaseExp = *resp.Node.Expiration
			return sn, nil

		// if etcd returned Key Already Exists, try again.
		case err.(*etcd.EtcdError).ErrorCode == etcdKeyAlreadyExists:
			break

		default:
			return ip.IP4Net{}, err
		}

		// before moving on, check for cancel
		if interrupted(cancel) {
			return ip.IP4Net{}, task.ErrCanceled
		}
	}

	return ip.IP4Net{}, errors.New("Max retries reached trying to acquire a subnet")
}

开发者ID:hingstarne，项目名称:flannel，代码行数:57，代码来源:subnet.go

示例9: handleSubnetEvents

func (vb *VXLANBackend) handleSubnetEvents(batch []subnet.Event) {
	for _, evt := range batch {
		switch evt.Type {
		case subnet.EventAdded:
			log.Info("Subnet added: ", evt.Lease.Subnet)

			if evt.Lease.Attrs.BackendType != "vxlan" {
				log.Warningf("Ignoring non-vxlan subnet: type=%v", evt.Lease.Attrs.BackendType)
				continue
			}

			var attrs vxlanLeaseAttrs
			if err := json.Unmarshal(evt.Lease.Attrs.BackendData, &attrs); err != nil {
				log.Error("Error decoding subnet lease JSON: ", err)
				continue
			}
			vb.rts.set(evt.Lease.Subnet, net.HardwareAddr(attrs.VtepMAC))
			vb.dev.AddL2(neigh{IP: evt.Lease.Attrs.PublicIP, MAC: net.HardwareAddr(attrs.VtepMAC)})

		case subnet.EventRemoved:
			log.Info("Subnet removed: ", evt.Lease.Subnet)

			if evt.Lease.Attrs.BackendType != "vxlan" {
				log.Warningf("Ignoring non-vxlan subnet: type=%v", evt.Lease.Attrs.BackendType)
				continue
			}

			var attrs vxlanLeaseAttrs
			if err := json.Unmarshal(evt.Lease.Attrs.BackendData, &attrs); err != nil {
				log.Error("Error decoding subnet lease JSON: ", err)
				continue
			}

			if len(attrs.VtepMAC) > 0 {
				vb.dev.DelL2(neigh{IP: evt.Lease.Attrs.PublicIP, MAC: net.HardwareAddr(attrs.VtepMAC)})
			}
			vb.rts.remove(evt.Lease.Subnet)

		default:
			log.Error("Internal error: unknown event type: ", int(evt.Type))
		}
	}
}

开发者ID:rajatchopra，项目名称:flannel，代码行数:43，代码来源:vxlan.go

示例10: makeSubnetManager

func makeSubnetManager() *subnet.SubnetManager {
	for {
		sm, err := subnet.NewSubnetManager(opts.etcdEndpoint, opts.etcdPrefix)
		if err == nil {
			return sm
		}

		log.Error("Failed to create SubnetManager: ", err)
		time.Sleep(time.Second)
	}
}

开发者ID:hingstarne，项目名称:flannel，代码行数:11，代码来源:main.go

示例11: handleSubnetEvents

func (rb *HostgwBackend) handleSubnetEvents(batch []subnet.Event) {
	for _, evt := range batch {
		switch evt.Type {
		case subnet.SubnetAdded:
			log.Infof("Subnet added: %v via %v", evt.Lease.Subnet, evt.Lease.Attrs.PublicIP)

			if evt.Lease.Attrs.BackendType != "host-gw" {
				log.Warningf("Ignoring non-host-gw subnet: type=%v", evt.Lease.Attrs.BackendType)
				continue
			}

			route := netlink.Route{
				Dst:       evt.Lease.Subnet.ToIPNet(),
				Gw:        evt.Lease.Attrs.PublicIP.ToIP(),
				LinkIndex: rb.extIface.Index,
			}
			if rb.extIaddr.Equal(route.Gw) {
				continue
			}
			if err := netlink.RouteAdd(&route); err != nil {
				log.Errorf("Error adding route to %v via %v: %v", evt.Lease.Subnet, evt.Lease.Attrs.PublicIP, err)
				continue
			}
			rb.addToRouteList(route)

		case subnet.SubnetRemoved:
			log.Info("Subnet removed: ", evt.Lease.Subnet)

			if evt.Lease.Attrs.BackendType != "host-gw" {
				log.Warningf("Ignoring non-host-gw subnet: type=%v", evt.Lease.Attrs.BackendType)
				continue
			}

			route := netlink.Route{
				Dst:       evt.Lease.Subnet.ToIPNet(),
				Gw:        evt.Lease.Attrs.PublicIP.ToIP(),
				LinkIndex: rb.extIface.Index,
			}
			if err := netlink.RouteDel(&route); err != nil {
				log.Errorf("Error deleting route to %v: %v", evt.Lease.Subnet, err)
				continue
			}
			rb.removeFromRouteList(route)

		default:
			log.Error("Internal error: unknown event type: ", int(evt.Type))
		}
	}
}

开发者ID:cusspvz，项目名称:flannel，代码行数:49，代码来源:hostgw.go

示例12: processSubnetEvents

func (m *UdpBackend) processSubnetEvents(batch subnet.EventBatch) {
	for _, evt := range batch {
		switch evt.Type {
		case subnet.SubnetAdded:
			log.Info("Subnet added: ", evt.Lease.Network)

			var attrs subnet.BaseAttrs
			if err := json.Unmarshal([]byte(evt.Lease.Data), &attrs); err != nil {
				log.Error("Error decoding subnet lease JSON: ", err)
				continue
			}

			setRoute(m.ctl, evt.Lease.Network, attrs.PublicIP, m.cfg.Port)

		case subnet.SubnetRemoved:
			log.Info("Subnet removed: ", evt.Lease.Network)

			removeRoute(m.ctl, evt.Lease.Network)

		default:
			log.Error("Internal error: unknown event type: ", int(evt.Type))
		}
	}
}

开发者ID:hingstarne，项目名称:flannel，代码行数:24，代码来源:udp.go

示例13: retryInit

func (n *Network) retryInit() error {
	for {
		err := n.init()
		if err == nil || err == context.Canceled {
			return err
		}

		log.Error(err)

		select {
		case <-n.ctx.Done():
			return n.ctx.Err()
		case <-time.After(time.Second):
		}
	}
}

开发者ID:vanloswang，项目名称:flannel，代码行数:16，代码来源:network.go

示例14: Run

func (vb *VXLANBackend) Run() {
	vb.wg.Add(1)
	go func() {
		subnet.LeaseRenewer(vb.ctx, vb.sm, vb.network, vb.lease)
		log.Info("LeaseRenewer exited")
		vb.wg.Done()
	}()

	log.Info("Watching for L3 misses")
	misses := make(chan *netlink.Neigh, 100)
	// Unfrtunately MonitorMisses does not take a cancel channel
	// as there's no wait to interrupt netlink socket recv
	go vb.dev.MonitorMisses(misses)

	log.Info("Watching for new subnet leases")
	evts := make(chan []subnet.Event)
	vb.wg.Add(1)
	go func() {
		subnet.WatchLeases(vb.ctx, vb.sm, vb.network, vb.lease, evts)
		log.Info("WatchLeases exited")
		vb.wg.Done()
	}()

	defer vb.wg.Wait()
	initialEvtsBatch := <-evts
	for {
		err := vb.handleInitialSubnetEvents(initialEvtsBatch)
		if err == nil {
			break
		}
		log.Error(err, " About to retry")
		time.Sleep(time.Second)
	}

	for {
		select {
		case miss := <-misses:
			vb.handleMiss(miss)

		case evtBatch := <-evts:
			vb.handleSubnetEvents(evtBatch)

		case <-vb.ctx.Done():
			return
		}
	}
}

开发者ID:rajatchopra，项目名称:flannel，代码行数:47，代码来源:vxlan.go

示例15: Run

func (n *Network) Run(extIface *backend.ExternalInterface, inited func(bn backend.Network)) {
	wg := sync.WaitGroup{}

For:
	for {
		err := n.init()
		switch err {
		case nil:
			break For
		case context.Canceled:
			return
		default:
			log.Error(err)
			select {
			case <-n.ctx.Done():
				return
			case <-time.After(time.Second):
			}
		}
	}

	inited(n.bn)

	wg.Add(1)
	go func() {
		n.bn.Run(n.ctx)
		wg.Done()
	}()

	wg.Add(1)
	go func() {
		subnet.LeaseRenewer(n.ctx, n.sm, n.Name, n.bn.Lease())
		wg.Done()
	}()

	defer func() {
		if n.ipMasq {
			if err := teardownIPMasq(n.Config.Network); err != nil {
				log.Errorf("Failed to tear down IP Masquerade for network %v: %v", n.Name, err)
			}
		}
	}()

	wg.Wait()
}

开发者ID:jonboulle，项目名称:flannel，代码行数:45，代码来源:network.go

示例16: processSubnetEvents

func (m *UdpBackend) processSubnetEvents(batch []subnet.Event) {
	for _, evt := range batch {
		switch evt.Type {
		case subnet.EventAdded:
			log.Info("Subnet added: ", evt.Lease.Subnet)

			setRoute(m.ctl, evt.Lease.Subnet, evt.Lease.Attrs.PublicIP, m.cfg.Port)

		case subnet.EventRemoved:
			log.Info("Subnet removed: ", evt.Lease.Subnet)

			removeRoute(m.ctl, evt.Lease.Subnet)

		default:
			log.Error("Internal error: unknown event type: ", int(evt.Type))
		}
	}
}

开发者ID:OpenSorceress，项目名称:flannel，代码行数:18，代码来源:udp.go

示例17: Run

func (n *network) Run(ctx context.Context) {
	log.Info("Watching for L3 misses")
	misses := make(chan *netlink.Neigh, 100)
	// Unfrtunately MonitorMisses does not take a cancel channel
	// as there's no wait to interrupt netlink socket recv
	go n.dev.MonitorMisses(misses)

	wg := sync.WaitGroup{}

	log.Info("Watching for new subnet leases")
	evts := make(chan []subnet.Event)
	wg.Add(1)
	go func() {
		subnet.WatchLeases(ctx, n.sm, n.name, n.SubnetLease, evts)
		log.Info("WatchLeases exited")
		wg.Done()
	}()

	defer wg.Wait()
	initialEvtsBatch := <-evts
	for {
		err := n.handleInitialSubnetEvents(initialEvtsBatch)
		if err == nil {
			break
		}
		log.Error(err, " About to retry")
		time.Sleep(time.Second)
	}

	for {
		select {
		case miss := <-misses:
			n.handleMiss(miss)

		case evtBatch := <-evts:
			n.handleSubnetEvents(evtBatch)

		case <-ctx.Done():
			return
		}
	}
}

开发者ID:vanloswang，项目名称:flannel，代码行数:42，代码来源:network.go

示例18: MonitorMisses

func (dev *vxlanDevice) MonitorMisses(misses chan *netlink.Neigh) {
	nlsock, err := nl.Subscribe(syscall.NETLINK_ROUTE, syscall.RTNLGRP_NEIGH)
	if err != nil {
		log.Error("Failed to subscribe to netlink RTNLGRP_NEIGH messages")
		return
	}

	for {
		msgs, err := nlsock.Receive()
		if err != nil {
			log.Errorf("Failed to receive from netlink: %v ", err)

			time.Sleep(1 * time.Second)
			continue
		}

		for _, msg := range msgs {
			dev.processNeighMsg(msg, misses)
		}
	}
}

开发者ID:MarkBruns，项目名称:flannel，代码行数:21，代码来源:device.go

示例19: LeaseRenewer

func LeaseRenewer(ctx context.Context, m Manager, network string, lease *Lease) {
	dur := lease.Expiration.Sub(clock.Now()) - renewMargin

	for {
		select {
		case <-time.After(dur):
			err := m.RenewLease(ctx, network, lease)
			if err != nil {
				log.Error("Error renewing lease (trying again in 1 min): ", err)
				dur = time.Minute
				continue
			}

			log.Info("Lease renewed, new expiration: ", lease.Expiration)
			dur = lease.Expiration.Sub(clock.Now()) - renewMargin

		case <-ctx.Done():
			return
		}
	}
}

开发者ID:hidetosaito，项目名称:flannel，代码行数:21，代码来源:renew.go

示例20: runCProxy

func runCProxy(tun *os.File, conn *net.UDPConn, ctl *os.File, tunIP ip.IP4, tunMTU int) {
	var log_errors int
	if log.V(1) {
		log_errors = 1
	}

	c, err := conn.File()
	if err != nil {
		log.Error("Converting UDPConn to File failed: ", err)
		return
	}
	defer c.Close()

	C.run_proxy(
		C.int(tun.Fd()),
		C.int(c.Fd()),
		C.int(ctl.Fd()),
		C.in_addr_t(tunIP.NetworkOrder()),
		C.size_t(tunMTU),
		C.int(log_errors),
	)
}

开发者ID:hingstarne，项目名称:flannel，代码行数:22，代码来源:cproxy.go

注：本文中的github.com/coreos/flannel/Godeps/_workspace/src/github.com/golang/glog.Error函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。