func main() {
if len(os.Args) != 2 {
fmt.Println("Usage\ntail-f filename\n")
os.Exit(1)
}
filename, err := hydra.Rel2Abs(os.Args[1])
if err != nil {
panic(err)
}
watcher, err := hydra.NewWatcher()
if err != nil {
panic(err)
}
messageCh, monitorCh := hydra.NewChannel()
config := &hydra.ConfigLogfile{
Tag: "dummy",
File: filename,
FieldName: "message",
}
inTail, err := hydra.NewInTail(config, watcher, messageCh, monitorCh)
go watcher.Run()
go inTail.Run()
done := make(chan interface{})
for {
recordSet := <-messageCh
for _, record := range recordSet.Records {
b, ok := record.GetData("message")
if ok {
fmt.Println(string(b.([]byte)))
}
}
}
<-done
}
func TestForwardFailOver(t *testing.T) {
log.Println("---- TestForwardFailOver ----")
counter := int64(0)
primaryAddr, primaryCloser := runMockServer(t, "", &counter)
close(primaryCloser) // shutdown primary server immediately
sleep(1)
primaryConfigServer := newConfigServer(primaryAddr)
secondaryAddr, secondaryCloser := runMockServer(t, "", &counter)
secondaryConfigServer := newConfigServer(secondaryAddr)
configServers := []*hydra.ConfigServer{
primaryConfigServer,
secondaryConfigServer,
}
msgCh, monCh := hydra.NewChannel()
outForward, err := hydra.NewOutForward(configServers, msgCh, monCh)
if err != nil {
t.Error(err)
return
}
go outForward.Run()
sleep(1)
recordSet := prepareRecordSet()
msgCh <- recordSet
sleep(1)
if n := atomic.LoadInt64(&counter); n != int64(len(TestMessageLines)) {
t.Error("insufficient recieved messages. sent", len(TestMessageLines), "recieved", n)
}
close(msgCh)
close(secondaryCloser)
sleep(1)
}
func TestMonitorServer(t *testing.T) {
config := &hydra.Config{
Monitor: &hydra.ConfigMonitor{
Host: "localhost",
Port: 0,
},
}
_, ch := hydra.NewChannel()
monitor, _ := hydra.NewMonitor(config, ch)
go monitor.Run()
expectedMessages := make(map[string]int64)
expectedBytes := make(map[string]int64)
tags := []string{"foo", "bar", "dummy.test"}
for _, tag := range tags {
for i := 1; i <= 100; i++ {
m := rand.Int63n(10)
b := rand.Int63n(2560)
ch <- &hydra.SentStat{
Tag: tag,
Messages: m,
Bytes: b,
}
expectedMessages[tag] += m
expectedBytes[tag] += b
}
}
sleep(1)
resp, err := http.Get(fmt.Sprintf("http://%s/", monitor.Addr))
if err != nil {
t.Error(err)
}
defer resp.Body.Close()
if ct := resp.Header.Get("Content-Type"); ct != "application/json" {
t.Error("invalid content-type", ct)
}
body, _ := ioutil.ReadAll(resp.Body)
js := bytes.NewReader(body)
for tag, n := range expectedMessages {
js.Seek(int64(0), os.SEEK_SET)
var got int64
scan.ScanJSON(js, "/sent/"+tag+"/messages", &got)
if got != n {
t.Errorf("/sent/%s/messages got %d expected %d", tag, got, n)
}
}
for tag, n := range expectedBytes {
js.Seek(int64(0), os.SEEK_SET)
var got int64
scan.ScanJSON(js, "/sent/"+tag+"/bytes", &got)
if got != n {
t.Errorf("/sent/%s/bytes got %d expected %d", tag, got, n)
}
}
log.Println(string(body))
}
func run(config *hydra.Config) {
messageCh, monitorCh := hydra.NewChannel()
if config.ReadBufferSize > 0 {
hydra.ReadBufferSize = config.ReadBufferSize
log.Println("[info] set ReadBufferSize", hydra.ReadBufferSize)
}
// start monitor server
monitor, err := hydra.NewMonitor(config, monitorCh)
if err != nil {
log.Println("[error] Couldn't start monitor server.", err)
} else {
go monitor.Run()
}
// start out_forward
outForward, err := hydra.NewOutForward(config.Servers, messageCh, monitorCh)
if err != nil {
log.Println("[error]", err)
} else {
outForward.RoundRobin = config.ServerRoundRobin
if outForward.RoundRobin {
log.Println("[info] ServerRoundRobin enabled")
}
go outForward.Run()
}
// start watcher && in_tail
if len(config.Logs) > 0 {
watcher, err := hydra.NewWatcher()
if err != nil {
log.Println("[error]", err)
}
for _, configLogfile := range config.Logs {
tail, err := hydra.NewInTail(configLogfile, watcher, messageCh, monitorCh)
if err != nil {
log.Println("[error]", err)
} else {
go tail.Run()
}
}
go watcher.Run()
}
// start in_forward
if config.Receiver != nil {
if runtime.GOMAXPROCS(0) < 2 {
log.Println("[warning] When using Receiver, recommend to set GOMAXPROCS >= 2.")
}
inForward, err := hydra.NewInForward(config.Receiver, messageCh, monitorCh)
if err != nil {
log.Println("[error]", err)
} else {
go inForward.Run()
}
}
}
func TestTrailLTSV(t *testing.T) {
tmpdir, _ := ioutil.TempDir(os.TempDir(), "hydra-test")
file, _ := ioutil.TempFile(tmpdir, "logfile.")
defer os.RemoveAll(tmpdir)
configLogfile := &hydra.ConfigLogfile{
Tag: "test",
File: file.Name(),
Format: hydra.LTSV,
ConvertMap: hydra.NewConvertMap("foo:integer"),
FieldName: "message",
TimeParse: true,
TimeFormat: hydra.DefaultTimeFormat,
TimeKey: hydra.DefaultTimeKey,
}
msgCh, monCh := hydra.NewChannel()
watcher, err := hydra.NewWatcher()
if err != nil {
t.Error(err)
}
inTail, err := hydra.NewInTail(configLogfile, watcher, msgCh, monCh)
if err != nil {
t.Error(err)
}
go inTail.Run()
go watcher.Run()
go func() {
time.Sleep(1 * time.Second)
fileWriter(t, file, LTSVLogs)
}()
i := 0
for i < len(LTSVLogs) {
recordSet := <-msgCh
if recordSet.Tag != "test" {
t.Errorf("got %v\nwant %v", recordSet.Tag, "test")
}
for _, _record := range recordSet.Records {
record := _record.(*fluent.TinyFluentRecord)
if foo, _ := record.GetData("foo"); foo != LTSVParsed[i]["foo"] {
t.Errorf("unexpected record %v", record)
}
if bar, _ := record.GetData("bar"); bar != LTSVParsed[i]["bar"] {
t.Errorf("unexpected record %v", record)
}
if ts, ok := LTSVParsed[i]["_time"]; ok {
if ts.(time.Time).Unix() != record.Timestamp {
t.Errorf("expected timestamp %s got %s", ts, record.Timestamp)
}
}
i++
}
}
}
func TestInForward(t *testing.T) {
config := &hydra.ConfigReceiver{
Host: "127.0.0.1",
Port: 0,
MaxBufferMessages: 1000,
}
messageCh, monitorCh := hydra.NewChannel()
inForward, err := hydra.NewInForward(config, messageCh, monitorCh)
if err != nil {
t.Error(err)
}
go inForward.Run()
host, _port, _ := net.SplitHostPort(inForward.Addr.String())
port, _ := strconv.Atoi(_port)
logger, err := client.New(client.Config{
FluentHost: host,
FluentPort: port,
})
if err != nil {
t.Error(err)
}
log.Println("logger", logger)
defer logger.Close()
tag := "myapp.access"
for i := 0; i < 10; i++ {
var data = map[string]interface{}{
"foo": "bar",
"hoge": "hoge",
}
logger.Post(tag, data)
}
n := 0
RECEIVE:
for {
select {
case <-messageCh:
n++
continue
case <-time.After(1 * time.Second):
break RECEIVE
}
}
if n != 10 {
t.Errorf("arrived messages %d expected %d", n, 10)
}
}
func TestForwardReconnect(t *testing.T) {
log.Println("---- TestForwardReconnect ----")
counter := int64(0)
addr, mockCloser := runMockServer(t, "", &counter)
configServer := newConfigServer(addr)
msgCh, monCh := hydra.NewChannel()
outForward, err := hydra.NewOutForward([]*hydra.ConfigServer{configServer}, msgCh, monCh)
if err != nil {
t.Error(err)
}
go outForward.Run()
recordSet := prepareRecordSet()
msgCh <- recordSet
sleep(1)
t.Log("notify shutdown mockServer")
close(mockCloser)
t.Log("waiting for shutdown complated 3 sec")
sleep(3)
t.Log("restarting mock server on same addr", addr)
_, mockCloser = runMockServer(t, addr, &counter)
sleep(1)
msgCh <- recordSet // Afeter unexpected server closing, first Write() will be succeeded and lost...
sleep(1)
msgCh <- recordSet
t.Log("waiting for reconnect & resend completed 5 sec")
sleep(3)
if n := atomic.LoadInt64(&counter); n != int64(len(TestMessageLines)*2) {
t.Error("insufficient recieved messages. sent", len(TestMessageLines)*2, "recieved", n)
}
close(mockCloser)
close(msgCh)
sleep(1)
}
func TestTrail(t *testing.T) {
hydra.ReadBufferSize = ReadBufferSizeForTest
tmpdir, _ := ioutil.TempDir(os.TempDir(), "hydra-test")
file, _ := ioutil.TempFile(tmpdir, "logfile.")
defer os.RemoveAll(tmpdir)
go fileWriter(t, file, Logs)
configLogfile := &hydra.ConfigLogfile{
Tag: "test",
File: file.Name(),
FieldName: "message",
}
msgCh, monCh := hydra.NewChannel()
watcher, err := hydra.NewWatcher()
if err != nil {
t.Error(err)
}
inTail, err := hydra.NewInTail(configLogfile, watcher, msgCh, monCh)
if err != nil {
t.Error(err)
}
go inTail.Run()
go watcher.Run()
resultCh := make(chan string)
go reciever(t, msgCh, "test", resultCh)
recieved := <-resultCh
sent := strings.Join(Logs, "")
if recieved != sent {
t.Errorf("sent logs and recieved logs is different. sent %d bytes, recieved %d bytes", len(sent), len(recieved))
fmt.Print(sent)
fmt.Print(recieved)
}
}
func TestForwardSingle(t *testing.T) {
log.Println("---- TestForwardSingle ----")
counter := int64(0)
addr, mockCloser := runMockServer(t, "", &counter)
configServer := newConfigServer(addr)
msgCh, monCh := hydra.NewChannel()
outForward, err := hydra.NewOutForward([]*hydra.ConfigServer{configServer}, msgCh, monCh)
if err != nil {
t.Error(err)
}
go outForward.Run()
recordSet := prepareRecordSet()
msgCh <- recordSet
sleep(3)
if n := atomic.LoadInt64(&counter); n != int64(len(TestMessageLines)) {
t.Error("insufficient recieved messages. sent", len(TestMessageLines), "recieved", n)
}
close(msgCh)
close(mockCloser)
sleep(1)
}