// StartServer starts a gRPC server serving a benchmark service. It returns its
// listen address and a function to stop the server.
func StartServer() (string, func()) {
lis, err := net.Listen("tcp", ":0")
if err != nil {
grpclog.Fatalf("Failed to listen: %v", err)
}
s := grpc.NewServer(grpc.MaxConcurrentStreams(math.MaxUint32))
testpb.RegisterTestServiceServer(s, &testServer{})
go s.Serve(lis)
return lis.Addr().String(), func() {
s.Stop()
}
}
func setUp(maxStream uint32, e env) (s *grpc.Server, cc *grpc.ClientConn) {
sopts := []grpc.ServerOption{grpc.MaxConcurrentStreams(maxStream)}
la := ":0"
switch e.network {
case "unix":
la = "/tmp/testsock" + fmt.Sprintf("%d", time.Now())
syscall.Unlink(la)
}
lis, err := net.Listen(e.network, la)
if err != nil {
grpclog.Fatalf("Failed to listen: %v", err)
}
if e.security == "tls" {
creds, err := credentials.NewServerTLSFromFile(tlsDir+"server1.pem", tlsDir+"server1.key")
if err != nil {
grpclog.Fatalf("Failed to generate credentials %v", err)
}
sopts = append(sopts, grpc.Creds(creds))
}
s = grpc.NewServer(sopts...)
testpb.RegisterTestServiceServer(s, &testServer{})
go s.Serve(lis)
addr := la
switch e.network {
case "unix":
default:
_, port, err := net.SplitHostPort(lis.Addr().String())
if err != nil {
grpclog.Fatalf("Failed to parse listener address: %v", err)
}
addr = "localhost:" + port
}
if e.security == "tls" {
creds, err := credentials.NewClientTLSFromFile(tlsDir+"ca.pem", "x.test.youtube.com")
if err != nil {
grpclog.Fatalf("Failed to create credentials %v", err)
}
cc, err = grpc.Dial(addr, grpc.WithTransportCredentials(creds), grpc.WithDialer(e.dialer))
} else {
cc, err = grpc.Dial(addr, grpc.WithDialer(e.dialer))
}
if err != nil {
grpclog.Fatalf("Dial(%q) = %v", addr, err)
}
return
}
func main() {
flag.Parse()
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *port))
if err != nil {
grpclog.Fatalf("failed to listen: %v", err)
}
var opts []grpc.ServerOption
if *tls {
creds, err := credentials.NewServerTLSFromFile(*certFile, *keyFile)
if err != nil {
grpclog.Fatalf("Failed to generate credentials %v", err)
}
opts = []grpc.ServerOption{grpc.Creds(creds)}
}
grpcServer := grpc.NewServer(opts...)
pb.RegisterRouteGuideServer(grpcServer, newServer())
grpcServer.Serve(lis)
}
func main() {
flag.Parse()
p := strconv.Itoa(*port)
lis, err := net.Listen("tcp", ":"+p)
if err != nil {
grpclog.Fatalf("failed to listen: %v", err)
}
var opts []grpc.ServerOption
if *useTLS {
creds, err := credentials.NewServerTLSFromFile(*certFile, *keyFile)
if err != nil {
grpclog.Fatalf("Failed to generate credentials %v", err)
}
opts = []grpc.ServerOption{grpc.Creds(creds)}
}
server := grpc.NewServer(opts...)
testpb.RegisterTestServiceServer(server, &testServer{})
server.Serve(lis)
}
// startEtcd launches the etcd server and HTTP handlers for client/server communication.
func startEtcd(cfg *config) (<-chan struct{}, error) {
urlsmap, token, err := getPeerURLsMapAndToken(cfg, "etcd")
if err != nil {
return nil, fmt.Errorf("error setting up initial cluster: %v", err)
}
if !cfg.peerTLSInfo.Empty() {
plog.Infof("peerTLS: %s", cfg.peerTLSInfo)
}
plns := make([]net.Listener, 0)
for _, u := range cfg.lpurls {
if u.Scheme == "http" && !cfg.peerTLSInfo.Empty() {
plog.Warningf("The scheme of peer url %s is http while peer key/cert files are presented. Ignored peer key/cert files.", u.String())
}
var l net.Listener
l, err = transport.NewTimeoutListener(u.Host, u.Scheme, cfg.peerTLSInfo, rafthttp.ConnReadTimeout, rafthttp.ConnWriteTimeout)
if err != nil {
return nil, err
}
urlStr := u.String()
plog.Info("listening for peers on ", urlStr)
defer func() {
if err != nil {
l.Close()
plog.Info("stopping listening for peers on ", urlStr)
}
}()
plns = append(plns, l)
}
if !cfg.clientTLSInfo.Empty() {
plog.Infof("clientTLS: %s", cfg.clientTLSInfo)
}
clns := make([]net.Listener, 0)
for _, u := range cfg.lcurls {
if u.Scheme == "http" && !cfg.clientTLSInfo.Empty() {
plog.Warningf("The scheme of client url %s is http while client key/cert files are presented. Ignored client key/cert files.", u.String())
}
var l net.Listener
l, err = transport.NewKeepAliveListener(u.Host, u.Scheme, cfg.clientTLSInfo)
if err != nil {
return nil, err
}
if fdLimit, err := runtimeutil.FDLimit(); err == nil {
if fdLimit <= reservedInternalFDNum {
plog.Fatalf("file descriptor limit[%d] of etcd process is too low, and should be set higher than %d to ensure internal usage", fdLimit, reservedInternalFDNum)
}
l = netutil.LimitListener(l, int(fdLimit-reservedInternalFDNum))
}
urlStr := u.String()
plog.Info("listening for client requests on ", urlStr)
defer func() {
if err != nil {
l.Close()
plog.Info("stopping listening for client requests on ", urlStr)
}
}()
clns = append(clns, l)
}
var v3l net.Listener
if cfg.v3demo {
v3l, err = net.Listen("tcp", cfg.gRPCAddr)
if err != nil {
plog.Fatal(err)
}
plog.Infof("listening for client rpc on %s", cfg.gRPCAddr)
}
srvcfg := &etcdserver.ServerConfig{
Name: cfg.name,
ClientURLs: cfg.acurls,
PeerURLs: cfg.apurls,
DataDir: cfg.dir,
DedicatedWALDir: cfg.walDir,
SnapCount: cfg.snapCount,
MaxSnapFiles: cfg.maxSnapFiles,
MaxWALFiles: cfg.maxWalFiles,
InitialPeerURLsMap: urlsmap,
InitialClusterToken: token,
DiscoveryURL: cfg.durl,
DiscoveryProxy: cfg.dproxy,
NewCluster: cfg.isNewCluster(),
ForceNewCluster: cfg.forceNewCluster,
PeerTLSInfo: cfg.peerTLSInfo,
TickMs: cfg.TickMs,
ElectionTicks: cfg.electionTicks(),
V3demo: cfg.v3demo,
StrictReconfigCheck: cfg.strictReconfigCheck,
}
var s *etcdserver.EtcdServer
s, err = etcdserver.NewServer(srvcfg)
if err != nil {
return nil, err
}
s.Start()
osutil.RegisterInterruptHandler(s.Stop)
if cfg.corsInfo.String() != "" {
plog.Infof("cors = %s", cfg.corsInfo)
}
ch := &cors.CORSHandler{
Handler: etcdhttp.NewClientHandler(s, srvcfg.ReqTimeout()),
Info: cfg.corsInfo,
}
ph := etcdhttp.NewPeerHandler(s.Cluster(), s.RaftHandler())
// Start the peer server in a goroutine
for _, l := range plns {
go func(l net.Listener) {
plog.Fatal(serveHTTP(l, ph, 5*time.Minute))
}(l)
}
// Start a client server goroutine for each listen address
for _, l := range clns {
go func(l net.Listener) {
// read timeout does not work with http close notify
// TODO: https://github.com/golang/go/issues/9524
plog.Fatal(serveHTTP(l, ch, 0))
}(l)
}
if cfg.v3demo {
// set up v3 demo rpc
grpcServer := grpc.NewServer()
etcdserverpb.RegisterEtcdServer(grpcServer, v3rpc.New(s))
go plog.Fatal(grpcServer.Serve(v3l))
}
return s.StopNotify(), nil
}