func NewServer(config *configuration.Configuration) (*Server, error) {
log.Info("Opening database at %s", config.DataDir)
shardDb, err := datastore.NewLevelDbShardDatastore(config)
if err != nil {
return nil, err
}
newClient := func(connectString string) cluster.ServerConnection {
return coordinator.NewProtobufClient(connectString, config.ProtobufTimeout.Duration)
}
writeLog, err := wal.NewWAL(config)
if err != nil {
return nil, err
}
clusterConfig := cluster.NewClusterConfiguration(config, writeLog, shardDb, newClient)
raftServer := coordinator.NewRaftServer(config, clusterConfig)
clusterConfig.LocalRaftName = raftServer.GetRaftName()
clusterConfig.SetShardCreator(raftServer)
clusterConfig.CreateFutureShardsAutomaticallyBeforeTimeComes()
coord := coordinator.NewCoordinatorImpl(config, raftServer, clusterConfig)
requestHandler := coordinator.NewProtobufRequestHandler(coord, clusterConfig)
protobufServer := coordinator.NewProtobufServer(config.ProtobufListenString(), requestHandler)
raftServer.AssignCoordinator(coord)
httpApi := http.NewHttpServer(config.ApiHttpPortString(), config.ApiReadTimeout, config.AdminAssetsDir, coord, coord, clusterConfig, raftServer)
httpApi.EnableSsl(config.ApiHttpSslPortString(), config.ApiHttpCertPath)
graphiteApi := graphite.NewServer(config, coord, clusterConfig)
udpApi := udp.NewServer(config, coord, clusterConfig)
adminServer := admin.NewHttpServer(config.AdminAssetsDir, config.AdminHttpPortString())
return &Server{
RaftServer: raftServer,
ProtobufServer: protobufServer,
ClusterConfig: clusterConfig,
HttpApi: httpApi,
GraphiteApi: graphiteApi,
UdpApi: udpApi,
Coordinator: coord,
AdminServer: adminServer,
Config: config,
RequestHandler: requestHandler,
writeLog: writeLog,
shardStore: shardDb}, nil
}
func (self *Server) ListenAndServe() error {
err := self.RaftServer.ListenAndServe()
if err != nil {
return err
}
log.Info("Waiting for local server to be added")
self.ClusterConfig.WaitForLocalServerLoaded()
self.writeLog.SetServerId(self.ClusterConfig.ServerId())
time.Sleep(5 * time.Second)
// check to make sure that the raft connection string hasn't changed
raftConnectionString := self.Config.RaftConnectionString()
if self.ClusterConfig.LocalServer.ProtobufConnectionString != self.Config.ProtobufConnectionString() ||
self.ClusterConfig.LocalServer.RaftConnectionString != raftConnectionString {
log.Info("Sending change connection string command (%s,%s) (%s,%s)",
self.ClusterConfig.LocalServer.ProtobufConnectionString,
self.Config.ProtobufConnectionString(),
self.ClusterConfig.LocalServer.RaftConnectionString,
raftConnectionString,
)
err := self.RaftServer.ChangeConnectionString(
self.ClusterConfig.LocalRaftName,
self.Config.ProtobufConnectionString(),
self.Config.RaftConnectionString(),
true, // force the rename
)
if err != nil {
panic(err)
}
log.Info("Connection string changed successfully")
}
go self.ProtobufServer.ListenAndServe()
log.Info("Recovering from log...")
err = self.ClusterConfig.RecoverFromWAL()
if err != nil {
return err
}
log.Info("recovered")
err = self.Coordinator.(*coordinator.CoordinatorImpl).ConnectToProtobufServers(self.RaftServer.GetRaftName())
if err != nil {
return err
}
log.Info("Starting admin interface on port %d", self.Config.AdminHttpPort)
go self.AdminServer.ListenAndServe()
if self.Config.GraphiteEnabled {
if self.Config.GraphitePort <= 0 || self.Config.GraphiteDatabase == "" {
log.Warn("Cannot start graphite server. please check your configuration")
} else {
log.Info("Starting Graphite Listener on port %d", self.Config.GraphitePort)
go self.GraphiteApi.ListenAndServe()
}
} else {
log.Info("Graphite input plugins is disabled")
}
// UDP input
for _, udpInput := range self.Config.UdpServers {
port := udpInput.Port
database := udpInput.Database
if !udpInput.Enabled {
log.Info("UDP server is disabled")
continue
}
if port <= 0 {
log.Warn("Cannot start udp server on port %d. please check your configuration", port)
continue
} else if database == "" {
log.Warn("Cannot start udp server for database=\"\". please check your configuration")
continue
}
log.Info("Starting UDP Listener on port %d to database %s", port, database)
addr := self.Config.UdpInputPortString(port)
server := udp.NewServer(addr, database, self.Coordinator, self.ClusterConfig)
self.UdpServers = append(self.UdpServers, server)
go server.ListenAndServe()
}
log.Debug("ReportingDisabled: %s", self.Config.ReportingDisabled)
if !self.Config.ReportingDisabled {
go self.startReportingLoop()
}
// start processing continuous queries
self.RaftServer.StartProcessingContinuousQueries()
log.Info("Starting Http Api server on port %d", self.Config.ApiHttpPort)
self.HttpApi.ListenAndServe()
return nil
}
