Golang etcdserver.GetClusterFromRemotePeers函数代码示例

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本文整理汇总了Golang中github.com/coreos/etcd/etcdserver.GetClusterFromRemotePeers函数的典型用法代码示例。如果您正苦于以下问题：Golang GetClusterFromRemotePeers函数的具体用法？Golang GetClusterFromRemotePeers怎么用？Golang GetClusterFromRemotePeers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GetClusterFromRemotePeers函数的2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: startProxy

// startProxy launches an HTTP proxy for client communication which proxies to other etcd nodes.
func startProxy(cfg *config) error {
	urlsmap, _, err := getPeerURLsMapAndToken(cfg, "proxy")
	if err != nil {
		return fmt.Errorf("error setting up initial cluster: %v", err)
	}

	pt, err := transport.NewTimeoutTransport(cfg.peerTLSInfo, time.Duration(cfg.proxyDialTimeoutMs)*time.Millisecond, time.Duration(cfg.proxyReadTimeoutMs)*time.Millisecond, time.Duration(cfg.proxyWriteTimeoutMs)*time.Millisecond)
	if err != nil {
		return err
	}
	pt.MaxIdleConnsPerHost = proxy.DefaultMaxIdleConnsPerHost

	tr, err := transport.NewTimeoutTransport(cfg.peerTLSInfo, time.Duration(cfg.proxyDialTimeoutMs)*time.Millisecond, time.Duration(cfg.proxyReadTimeoutMs)*time.Millisecond, time.Duration(cfg.proxyWriteTimeoutMs)*time.Millisecond)
	if err != nil {
		return err
	}

	cfg.dir = path.Join(cfg.dir, "proxy")
	err = os.MkdirAll(cfg.dir, 0700)
	if err != nil {
		return err
	}

	var peerURLs []string
	clusterfile := path.Join(cfg.dir, "cluster")

	b, err := ioutil.ReadFile(clusterfile)
	switch {
	case err == nil:
		if cfg.durl != "" {
			plog.Warningf("discovery token ignored since the proxy has already been initialized. Valid cluster file found at %q", clusterfile)
		}
		urls := struct{ PeerURLs []string }{}
		err := json.Unmarshal(b, &urls)
		if err != nil {
			return err
		}
		peerURLs = urls.PeerURLs
		plog.Infof("proxy: using peer urls %v from cluster file %q", peerURLs, clusterfile)
	case os.IsNotExist(err):
		if cfg.durl != "" {
			s, err := discovery.GetCluster(cfg.durl, cfg.dproxy)
			if err != nil {
				return err
			}
			if urlsmap, err = types.NewURLsMap(s); err != nil {
				return err
			}
		}
		peerURLs = urlsmap.URLs()
		plog.Infof("proxy: using peer urls %v ", peerURLs)
	default:
		return err
	}

	clientURLs := []string{}
	uf := func() []string {
		gcls, err := etcdserver.GetClusterFromRemotePeers(peerURLs, tr)
		// TODO: remove the 2nd check when we fix GetClusterFromPeers
		// GetClusterFromPeers should not return nil error with an invalid empty cluster
		if err != nil {
			plog.Warningf("proxy: %v", err)
			return []string{}
		}
		if len(gcls.Members()) == 0 {
			return clientURLs
		}
		clientURLs = gcls.ClientURLs()

		urls := struct{ PeerURLs []string }{gcls.PeerURLs()}
		b, err := json.Marshal(urls)
		if err != nil {
			plog.Warningf("proxy: error on marshal peer urls %s", err)
			return clientURLs
		}

		err = ioutil.WriteFile(clusterfile+".bak", b, 0600)
		if err != nil {
			plog.Warningf("proxy: error on writing urls %s", err)
			return clientURLs
		}
		err = os.Rename(clusterfile+".bak", clusterfile)
		if err != nil {
			plog.Warningf("proxy: error on updating clusterfile %s", err)
			return clientURLs
		}
		if !reflect.DeepEqual(gcls.PeerURLs(), peerURLs) {
			plog.Noticef("proxy: updated peer urls in cluster file from %v to %v", peerURLs, gcls.PeerURLs())
		}
		peerURLs = gcls.PeerURLs()

		return clientURLs
	}
	ph := proxy.NewHandler(pt, uf, time.Duration(cfg.proxyFailureWaitMs)*time.Millisecond, time.Duration(cfg.proxyRefreshIntervalMs)*time.Millisecond)
	ph = &cors.CORSHandler{
		Handler: ph,
		Info:    cfg.corsInfo,
	}

//.........这里部分代码省略.........

开发者ID:utahcon，项目名称:etcd，代码行数:101，代码来源:etcd.go

示例2: startProxy

// startProxy launches an HTTP proxy for client communication which proxies to other etcd nodes.
func startProxy(cfg *config) error {
	plog.Notice("proxy: this proxy supports v2 API only!")

	pt, err := transport.NewTimeoutTransport(cfg.PeerTLSInfo, time.Duration(cfg.ProxyDialTimeoutMs)*time.Millisecond, time.Duration(cfg.ProxyReadTimeoutMs)*time.Millisecond, time.Duration(cfg.ProxyWriteTimeoutMs)*time.Millisecond)
	if err != nil {
		return err
	}
	pt.MaxIdleConnsPerHost = httpproxy.DefaultMaxIdleConnsPerHost

	tr, err := transport.NewTimeoutTransport(cfg.PeerTLSInfo, time.Duration(cfg.ProxyDialTimeoutMs)*time.Millisecond, time.Duration(cfg.ProxyReadTimeoutMs)*time.Millisecond, time.Duration(cfg.ProxyWriteTimeoutMs)*time.Millisecond)
	if err != nil {
		return err
	}

	cfg.Dir = path.Join(cfg.Dir, "proxy")
	err = os.MkdirAll(cfg.Dir, fileutil.PrivateDirMode)
	if err != nil {
		return err
	}

	var peerURLs []string
	clusterfile := path.Join(cfg.Dir, "cluster")

	b, err := ioutil.ReadFile(clusterfile)
	switch {
	case err == nil:
		if cfg.Durl != "" {
			plog.Warningf("discovery token ignored since the proxy has already been initialized. Valid cluster file found at %q", clusterfile)
		}
		if cfg.DNSCluster != "" {
			plog.Warningf("DNS SRV discovery ignored since the proxy has already been initialized. Valid cluster file found at %q", clusterfile)
		}
		urls := struct{ PeerURLs []string }{}
		err = json.Unmarshal(b, &urls)
		if err != nil {
			return err
		}
		peerURLs = urls.PeerURLs
		plog.Infof("proxy: using peer urls %v from cluster file %q", peerURLs, clusterfile)
	case os.IsNotExist(err):
		var urlsmap types.URLsMap
		urlsmap, _, err = cfg.PeerURLsMapAndToken("proxy")
		if err != nil {
			return fmt.Errorf("error setting up initial cluster: %v", err)
		}

		if cfg.Durl != "" {
			var s string
			s, err = discovery.GetCluster(cfg.Durl, cfg.Dproxy)
			if err != nil {
				return err
			}
			if urlsmap, err = types.NewURLsMap(s); err != nil {
				return err
			}
		}
		peerURLs = urlsmap.URLs()
		plog.Infof("proxy: using peer urls %v ", peerURLs)
	default:
		return err
	}

	clientURLs := []string{}
	uf := func() []string {
		gcls, gerr := etcdserver.GetClusterFromRemotePeers(peerURLs, tr)

		if gerr != nil {
			plog.Warningf("proxy: %v", gerr)
			return []string{}
		}

		clientURLs = gcls.ClientURLs()

		urls := struct{ PeerURLs []string }{gcls.PeerURLs()}
		b, jerr := json.Marshal(urls)
		if jerr != nil {
			plog.Warningf("proxy: error on marshal peer urls %s", jerr)
			return clientURLs
		}

		err = pkgioutil.WriteAndSyncFile(clusterfile+".bak", b, 0600)
		if err != nil {
			plog.Warningf("proxy: error on writing urls %s", err)
			return clientURLs
		}
		err = os.Rename(clusterfile+".bak", clusterfile)
		if err != nil {
			plog.Warningf("proxy: error on updating clusterfile %s", err)
			return clientURLs
		}
		if !reflect.DeepEqual(gcls.PeerURLs(), peerURLs) {
			plog.Noticef("proxy: updated peer urls in cluster file from %v to %v", peerURLs, gcls.PeerURLs())
		}
		peerURLs = gcls.PeerURLs()

		return clientURLs
	}
	ph := httpproxy.NewHandler(pt, uf, time.Duration(cfg.ProxyFailureWaitMs)*time.Millisecond, time.Duration(cfg.ProxyRefreshIntervalMs)*time.Millisecond)
	ph = &cors.CORSHandler{
//.........这里部分代码省略.........

开发者ID:hongchaodeng，项目名称:etcd，代码行数:101，代码来源:etcd.go

注：本文中的github.com/coreos/etcd/etcdserver.GetClusterFromRemotePeers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。