func (l *ScribeLogger) connect() error {
if l.client != nil {
return nil
}
var conn net.Conn
var err error
//try to conect 3 times
for reconns := 0; reconns < _MAX_RETRIES; reconns++ {
conn, err = net.Dial("tcp", l.addr)
if err != nil {
if reconns >= _MAX_RETRIES-1 {
log.Printf("ERROR: Could not connect to scribe server: %s\n", err)
return err
}
time.Sleep(100 * time.Millisecond) //wait a bit before retrying
} else {
break
}
}
transport := thrift.NewTransport(thrift.NewFramedReadWriteCloser(conn, 0), thrift.BinaryProtocol)
client := thrift.NewClient(transport, false)
l.client = &scribe.ScribeClient{Client: client}
l.enabled = true
return nil
}
func runServer(port string) {
// Set processor
rpc.RegisterName("Thrift", &echo.EchoServer{Implementation: new(echoHandler)})
ln, _ := net.Listen("tcp", port)
for {
conn, _ := ln.Accept()
go func(c net.Conn) {
t := thrift.NewTransport(thrift.NewFramedReadWriteCloser(c, 0), thrift.BinaryProtocol)
rpc.ServeCodec(thrift.NewServerCodec(t))
}(conn)
}
}
// Run runs the handler main loop
func (s *Scribe) Run() {
server := fmt.Sprintf("%s:%d", s.endpoint, s.port)
conn, err := net.Dial("tcp", server)
if err != nil {
s.log.Errorf("Failed to connect to %s. Error: %s", server, err.Error())
} else {
t := thrift.NewTransport(thrift.NewFramedReadWriteCloser(conn, 0), thrift.BinaryProtocol)
client := thrift.NewClient(t, false)
s.scribeClient = &scribe.ScribeClient{Client: client}
}
s.run(s.emitMetrics)
}
func main() {
conn, err := net.Dial("tcp", "127.0.0.1:1463")
if err != nil {
panic(err)
}
t := thrift.NewTransport(thrift.NewFramedReadWriteCloser(conn, 0), thrift.BinaryProtocol)
client := thrift.NewClient(t, false)
scr := scribe.ScribeClient{Client: client}
res, err := scr.Log([]*scribe.LogEntry{{"category", "message"}})
if err != nil {
panic(err)
}
fmt.Printf("Response: %+v\n", res)
}
func main() {
scribeService := new(scribeServiceImplementation)
rpc.RegisterName("Thrift", &scribe.ScribeServer{Implementation: scribeService})
ln, err := net.Listen("tcp", ":1463")
if err != nil {
panic(err)
}
for {
conn, err := ln.Accept()
if err != nil {
fmt.Printf("ERROR: %+v\n", err)
continue
}
fmt.Printf("New connection %+v\n", conn)
t := thrift.NewTransport(thrift.NewFramedReadWriteCloser(conn, 0), thrift.BinaryProtocol)
go rpc.ServeCodec(thrift.NewServerCodec(t))
}
}
func handleClient(addr string, num int) {
// Open independent client connection
conn, _ := net.Dial("tcp", addr)
t := thrift.NewTransport(thrift.NewFramedReadWriteCloser(conn, 0), thrift.BinaryProtocol)
client := thrift.NewClient(t, false)
defer client.Close()
ec := echo.EchoClient{Client: client}
// UUID
uid := uuid.NewV4().String()
for i := 0; i < num; i++ {
// Make thrift call and increment atomic count
txt := uid + strconv.Itoa(i)
ret, _ := ec.Echo(&echo.Message{Text: &txt})
if txt == ret {
atomic.AddUint64(&count, 1)
}
}
}