func (this *Start) main() {
ctx.LoadFromHome()
this.zkzone = zk.NewZkZone(zk.DefaultConfig(this.zone, ctx.ZoneZkAddrs(this.zone)))
zkConnEvt, ok := this.zkzone.SessionEvents()
if !ok {
panic("someone stealing my events")
}
registry.Default = zkr.New(this.zkzone)
log.Info("ehaproxy[%s] starting...", gafka.BuildId)
go this.runMonitorServer(this.httpAddr)
zkConnected := false
for {
instances, instancesChange, err := registry.Default.WatchInstances()
if err != nil {
log.Error("zone[%s] %s", this.zkzone.Name(), err)
time.Sleep(time.Second)
continue
}
if zkConnected {
if len(instances) > 0 {
this.reload(instances)
} else {
// resilience to zk problem by local cache
log.Warn("backend all shutdown? skip this change")
time.Sleep(time.Second)
continue
}
}
select {
case <-this.quitCh:
return
case evt := <-zkConnEvt:
if evt.State == zklib.StateHasSession && !zkConnected {
log.Info("zk connected")
zkConnected = true
} else if zkConnected {
log.Warn("zk jitter: %+v", evt)
}
case <-instancesChange:
log.Info("instances changed!!")
}
}
}
func New(id string) *Gateway {
this := &Gateway{
id: id,
shutdownCh: make(chan struct{}),
quiting: make(chan struct{}),
certFile: Options.CertFile,
keyFile: Options.KeyFile,
}
this.zkzone = gzk.NewZkZone(gzk.DefaultConfig(Options.Zone, ctx.ZoneZkAddrs(Options.Zone)))
if err := this.zkzone.Ping(); err != nil {
panic(err)
}
if Options.EnableRegistry {
registry.Default = zk.New(this.zkzone)
}
metaConf := zkmeta.DefaultConfig()
metaConf.Refresh = Options.MetaRefresh
meta.Default = zkmeta.New(metaConf, this.zkzone)
this.accessLogger = NewAccessLogger("access_log", 100)
this.svrMetrics = NewServerMetrics(Options.ReporterInterval, this)
rc, err := influxdb.NewConfig(Options.InfluxServer, Options.InfluxDbName, "", "", Options.ReporterInterval)
if err != nil {
log.Error("telemetry: %v", err)
} else {
telemetry.Default = influxdb.New(metrics.DefaultRegistry, rc)
}
// initialize the manager store
switch Options.ManagerStore {
case "mysql":
cf := mandb.DefaultConfig(Options.Zone)
cf.Refresh = Options.ManagerRefresh
manager.Default = mandb.New(cf)
manager.Default.AllowSubWithUnregisteredGroup(Options.PermitUnregisteredGroup)
case "dummy":
manager.Default = mandummy.New(Options.DummyCluster)
case "open":
cf := manopen.DefaultConfig(Options.Zone)
cf.Refresh = Options.ManagerRefresh
manager.Default = manopen.New(cf)
manager.Default.AllowSubWithUnregisteredGroup(Options.PermitUnregisteredGroup)
HttpHeaderAppid = "devid"
HttpHeaderPubkey = "devsecret"
HttpHeaderSubkey = "devsecret"
default:
panic("invalid manager store:" + Options.ManagerStore)
}
// initialize the servers on demand
if Options.DebugHttpAddr != "" {
this.debugMux = http.NewServeMux()
}
if Options.ManHttpAddr != "" || Options.ManHttpsAddr != "" {
this.manServer = newManServer(Options.ManHttpAddr, Options.ManHttpsAddr,
Options.MaxClients, this)
} else {
panic("manager server must be present")
}
if Options.PubHttpAddr != "" || Options.PubHttpsAddr != "" {
this.pubServer = newPubServer(Options.PubHttpAddr, Options.PubHttpsAddr,
Options.MaxClients, this)
switch Options.Store {
case "kafka":
store.DefaultPubStore = storekfk.NewPubStore(Options.PubPoolCapcity, Options.PubPoolIdleTimeout,
Options.UseCompress, Options.Debug, Options.DryRun)
case "dummy":
store.DefaultPubStore = storedummy.NewPubStore(Options.Debug)
default:
panic("invalid message store")
}
switch Options.JobStore {
case "mysql":
var mcc = &config.ConfigMysql{}
b, err := this.zkzone.KatewayJobClusterConfig()
if err != nil {
panic(err)
}
if err = mcc.From(b); err != nil {
panic(err)
}
jm, err := jobmysql.New(id, mcc)
if err != nil {
panic(fmt.Errorf("mysql job: %v", err))
}
job.Default = jm
case "dummy":
job.Default = jobdummy.New()
default:
panic("invalid job store")
}
// always create hh so that we can turn on/off it online
switch Options.HintedHandoffType {
case "disk":
if len(Options.HintedHandoffDir) == 0 {
panic("empty hh dir")
}
cfg := hhdisk.DefaultConfig()
cfg.Dirs = strings.Split(Options.HintedHandoffDir, ",")
if err := cfg.Validate(); err != nil {
panic(err)
}
hhdisk.DisableBufio = !Options.HintedHandoffBufio
if Options.AuditPub {
hhdisk.Auditor = &this.pubServer.auditor
}
hh.Default = hhdisk.New(cfg)
case "dummy":
hh.Default = hhdummy.New()
default:
panic("unkown hinted handoff type")
}
if Options.FlushHintedOffOnly {
meta.Default.Start()
log.Trace("meta store[%s] started", meta.Default.Name())
if err = store.DefaultPubStore.Start(); err != nil {
panic(err)
}
log.Trace("pub store[%s] started", store.DefaultPubStore.Name())
hh.Default.FlushInflights()
os.Exit(0)
}
}
if Options.SubHttpAddr != "" || Options.SubHttpsAddr != "" {
this.subServer = newSubServer(Options.SubHttpAddr, Options.SubHttpsAddr,
Options.MaxClients, this)
switch Options.Store {
case "kafka":
store.DefaultSubStore = storekfk.NewSubStore(this.subServer.closedConnCh, Options.Debug)
case "dummy":
store.DefaultSubStore = storedummy.NewSubStore(this.subServer.closedConnCh, Options.Debug)
default:
panic("invalid store")
}
}
return this
}
func New(id string) *Gateway {
this := &Gateway{
id: id,
shutdownCh: make(chan struct{}),
certFile: Options.CertFile,
keyFile: Options.KeyFile,
clientStates: NewClientStates(),
}
this.zkzone = gzk.NewZkZone(gzk.DefaultConfig(Options.Zone, ctx.ZoneZkAddrs(Options.Zone)))
if err := this.zkzone.Ping(); err != nil {
panic(err)
}
if Options.EnableRegistry {
registry.Default = zk.New(Options.Zone, this.id, this.InstanceInfo())
}
metaConf := zkmeta.DefaultConfig()
metaConf.Refresh = Options.MetaRefresh
meta.Default = zkmeta.New(metaConf, this.zkzone)
this.guard = newGuard(this)
this.timer = timewheel.NewTimeWheel(time.Second, 120)
this.accessLogger = NewAccessLogger("access_log", 100)
this.svrMetrics = NewServerMetrics(Options.ReporterInterval, this)
// initialize the manager store
switch Options.ManagerStore {
case "mysql":
cf := mandb.DefaultConfig(Options.Zone)
cf.Refresh = Options.ManagerRefresh
manager.Default = mandb.New(cf)
manager.Default.AllowSubWithUnregisteredGroup(Options.PermitUnregisteredGroup)
case "dummy":
manager.Default = mandummy.New()
default:
panic("invalid manager store")
}
// initialize the servers on demand
if Options.ManHttpAddr != "" || Options.ManHttpsAddr != "" {
this.manServer = newManServer(Options.ManHttpAddr, Options.ManHttpsAddr,
Options.MaxClients, this)
}
if Options.PubHttpAddr != "" || Options.PubHttpsAddr != "" {
this.pubServer = newPubServer(Options.PubHttpAddr, Options.PubHttpsAddr,
Options.MaxClients, this)
switch Options.Store {
case "kafka":
store.DefaultPubStore = storekfk.NewPubStore(Options.PubPoolCapcity, Options.PubPoolIdleTimeout,
Options.UseCompress, &this.wg, Options.Debug, Options.DryRun)
case "dummy":
store.DefaultPubStore = storedummy.NewPubStore(&this.wg, Options.Debug)
default:
panic("invalid store")
}
}
if Options.SubHttpAddr != "" || Options.SubHttpsAddr != "" {
this.subServer = newSubServer(Options.SubHttpAddr, Options.SubHttpsAddr,
Options.MaxClients, this)
switch Options.Store {
case "kafka":
store.DefaultSubStore = storekfk.NewSubStore(&this.wg,
this.subServer.closedConnCh, Options.Debug)
case "dummy":
store.DefaultSubStore = storedummy.NewSubStore(&this.wg,
this.subServer.closedConnCh, Options.Debug)
default:
panic("invalid store")
}
}
return this
}