예제 #1
1
// GetLookupdTopicChannels returns a []string containing a union of the channels
// from all the given lookupd for the given topic
func GetLookupdTopicChannels(topic string, lookupdHTTPAddrs []string) ([]string, error) {
	success := false
	allChannels := make([]string, 0)
	var lock sync.Mutex
	var wg sync.WaitGroup
	for _, addr := range lookupdHTTPAddrs {
		wg.Add(1)
		endpoint := fmt.Sprintf("http://%s/channels?topic=%s", addr, url.QueryEscape(topic))
		log.Printf("LOOKUPD: querying %s", endpoint)
		go func(endpoint string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()
			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true
			// {"data":{"channels":["test"]}}
			channels, _ := data.Get("channels").StringArray()
			allChannels = util.StringUnion(allChannels, channels)
		}(endpoint)
	}
	wg.Wait()
	sort.Strings(allChannels)
	if success == false {
		return nil, errors.New("unable to query any lookupd")
	}
	return allChannels, nil
}
예제 #2
0
파일: http.go 프로젝트: jsocol/nsq
func (s *httpServer) deleteTopicHandler(w http.ResponseWriter, req *http.Request) {
	if req.Method != "POST" {
		log.Printf("ERROR: invalid %s to POST only method", req.Method)
		http.Error(w, "INVALID_REQUEST", 500)
		return
	}
	reqParams := &util.PostParams{req}

	topicName, err := reqParams.Get("topic")
	if err != nil {
		http.Error(w, "MISSING_ARG_TOPIC", 500)
		return
	}

	rd, _ := reqParams.Get("rd")
	if !strings.HasPrefix(rd, "/") {
		rd = "/"
	}

	// for topic removal, you need to get all the producers *first*
	producers := s.getProducers(topicName)

	// remove the topic from all the lookupds
	for _, addr := range s.context.nsqadmin.options.NSQLookupdHTTPAddresses {
		endpoint := fmt.Sprintf("http://%s/delete_topic?topic=%s", addr, url.QueryEscape(topicName))
		log.Printf("LOOKUPD: querying %s", endpoint)

		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
			continue
		}
	}

	// now remove the topic from all the producers
	for _, addr := range producers {
		endpoint := fmt.Sprintf("http://%s/delete_topic?topic=%s", addr, url.QueryEscape(topicName))
		log.Printf("NSQD: querying %s", endpoint)
		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: nsqd %s - %s", endpoint, err.Error())
			continue
		}
	}

	s.notifyAdminAction("delete_topic", topicName, "", "", req)

	http.Redirect(w, req, rd, 302)
}
예제 #3
0
파일: http.go 프로젝트: jsocol/nsq
func (s *httpServer) tombstoneTopicProducerHandler(w http.ResponseWriter, req *http.Request) {
	if req.Method != "POST" {
		log.Printf("ERROR: invalid %s to POST only method", req.Method)
		http.Error(w, "INVALID_REQUEST", 500)
		return
	}
	reqParams := &util.PostParams{req}

	topicName, err := reqParams.Get("topic")
	if err != nil {
		http.Error(w, "MISSING_ARG_TOPIC", 500)
		return
	}

	node, err := reqParams.Get("node")
	if err != nil {
		http.Error(w, "MISSING_ARG_NODE", 500)
		return
	}

	rd, _ := reqParams.Get("rd")
	if !strings.HasPrefix(rd, "/") {
		rd = "/"
	}

	// tombstone the topic on all the lookupds
	for _, addr := range s.context.nsqadmin.options.NSQLookupdHTTPAddresses {
		endpoint := fmt.Sprintf("http://%s/tombstone_topic_producer?topic=%s&node=%s",
			addr, url.QueryEscape(topicName), url.QueryEscape(node))
		log.Printf("LOOKUPD: querying %s", endpoint)
		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
		}
	}

	// delete the topic on the producer
	endpoint := fmt.Sprintf("http://%s/delete_topic?topic=%s", node, url.QueryEscape(topicName))
	log.Printf("NSQD: querying %s", endpoint)
	_, err = util.ApiRequest(endpoint)
	if err != nil {
		log.Printf("ERROR: nsqd %s - %s", endpoint, err.Error())
	}

	s.notifyAdminAction("tombstone_topic_producer", topicName, "", node, req)

	http.Redirect(w, req, rd, 302)
}
예제 #4
0
// GetNSQDTopics returns a []string containing all the topics
// produced by the given nsqd
func GetNSQDTopics(nsqdHTTPAddrs []string) ([]string, error) {
	topics := make([]string, 0)
	var lock sync.Mutex
	var wg sync.WaitGroup
	success := false
	for _, addr := range nsqdHTTPAddrs {
		wg.Add(1)
		endpoint := fmt.Sprintf("http://%s/stats?format=json", addr)
		log.Printf("NSQD: querying %s", endpoint)

		go func(endpoint string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()
			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true
			topicList, _ := data.Get("topics").Array()
			for i := range topicList {
				topicInfo := data.Get("topics").GetIndex(i)
				topics = util.StringAdd(topics, topicInfo.Get("topic_name").MustString())
			}
		}(endpoint)
	}
	wg.Wait()
	sort.Strings(topics)
	if success == false {
		return nil, errors.New("unable to query any nsqd")
	}
	return topics, nil
}
예제 #5
0
파일: http.go 프로젝트: jsocol/nsq
func (s *httpServer) emptyTopicHandler(w http.ResponseWriter, req *http.Request) {
	if req.Method != "POST" {
		log.Printf("ERROR: invalid %s to POST only method", req.Method)
		http.Error(w, "INVALID_REQUEST", 500)
		return
	}
	reqParams := &util.PostParams{req}

	topicName, err := reqParams.Get("topic")
	if err != nil {
		http.Error(w, "MISSING_ARG_TOPIC", 500)
		return
	}

	producers := s.getProducers(topicName)
	for _, addr := range producers {
		endpoint := fmt.Sprintf("http://%s/empty_topic?topic=%s", addr, url.QueryEscape(topicName))
		log.Printf("NSQD: calling %s", endpoint)

		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: nsqd %s - %s", endpoint, err.Error())
			continue
		}
	}

	s.notifyAdminAction("empty_topic", topicName, "", "", req)

	http.Redirect(w, req, fmt.Sprintf("/topic/%s", url.QueryEscape(topicName)), 302)
}
예제 #6
0
func TestTombstonedNodes(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	tcpAddr, httpAddr, nsqlookupd := mustStartLookupd()
	defer nsqlookupd.Exit()
	nsqlookupd.inactiveProducerTimeout = 50 * time.Millisecond

	lookupdHTTPAddrs := []string{fmt.Sprintf("%s", httpAddr)}

	topicName := "inactive_nodes"

	conn := mustConnectLookupd(t, tcpAddr)
	identify(t, conn, "ip.address", 5000, 5555, "fake-version")

	nsq.Register(topicName, "channel1").Write(conn)
	_, err := nsq.ReadResponse(conn)
	assert.Equal(t, err, nil)

	producers, _ := lookuputil.GetLookupdProducers(lookupdHTTPAddrs)
	assert.Equal(t, len(producers), 1)
	assert.Equal(t, len(producers[0].Topics), 1)
	assert.Equal(t, producers[0].Topics[0].Topic, topicName)
	assert.Equal(t, producers[0].Topics[0].Tombstoned, false)

	endpoint := fmt.Sprintf("http://%s/tombstone_topic_producer?topic=%s&node=%s", httpAddr, topicName, "ip.address:5555")
	_, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)

	producers, _ = lookuputil.GetLookupdProducers(lookupdHTTPAddrs)
	assert.Equal(t, len(producers), 1)
	assert.Equal(t, len(producers[0].Topics), 1)
	assert.Equal(t, producers[0].Topics[0].Topic, topicName)
	assert.Equal(t, producers[0].Topics[0].Tombstoned, true)
}
예제 #7
0
파일: http.go 프로젝트: jsocol/nsq
func (s *httpServer) pauseChannelHandler(w http.ResponseWriter, req *http.Request) {
	if req.Method != "POST" {
		log.Printf("ERROR: invalid %s to POST only method", req.Method)
		http.Error(w, "INVALID_REQUEST", 500)
		return
	}
	reqParams := &util.PostParams{req}

	topicName, channelName, err := util.GetTopicChannelArgs(reqParams)
	if err != nil {
		http.Error(w, err.Error(), 500)
		return
	}

	producers := s.getProducers(topicName)
	for _, addr := range producers {
		endpoint := fmt.Sprintf("http://%s%s?topic=%s&channel=%s",
			addr, req.URL.Path, url.QueryEscape(topicName), url.QueryEscape(channelName))
		log.Printf("NSQD: calling %s", endpoint)

		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: nsqd %s - %s", endpoint, err.Error())
			continue
		}
	}

	s.notifyAdminAction(strings.TrimLeft(req.URL.Path, "/"), topicName, channelName, "", req)

	http.Redirect(w, req, fmt.Sprintf("/topic/%s/%s", url.QueryEscape(topicName), url.QueryEscape(channelName)), 302)
}
예제 #8
0
// CreateTopicChannel creates the given topic and channel on the provided
// nsqd instance
func CreateTopicChannel(topic, channel, nsqdAddr string) (err error) {
	endpoint := fmt.Sprintf("http://%s/create_topic?topic=%s", nsqdAddr, url.QueryEscape(topic))
	_, err = util.ApiRequest(endpoint)
	if err != nil {
		log.Printf("ERROR: Could not create topic %s: %s", topic, err)
		return
	}

	endpoint = fmt.Sprintf("http://%s/create_channel?topic=%s&channel=%s", nsqdAddr, url.QueryEscape(topic), url.QueryEscape(channel))
	_, err = util.ApiRequest(endpoint)
	if err != nil {
		log.Printf("ERROR: Could not create channel %s: %s", channel, err)
		return
	}
	return
}
예제 #9
0
파일: http.go 프로젝트: jsocol/nsq
func (s *httpServer) deleteChannelHandler(w http.ResponseWriter, req *http.Request) {
	if req.Method != "POST" {
		log.Printf("ERROR: invalid %s to POST only method", req.Method)
		http.Error(w, "INVALID_REQUEST", 500)
		return
	}
	reqParams := &util.PostParams{req}

	topicName, channelName, err := util.GetTopicChannelArgs(reqParams)
	if err != nil {
		http.Error(w, err.Error(), 500)
		return
	}

	rd, _ := reqParams.Get("rd")
	if !strings.HasPrefix(rd, "/") {
		rd = fmt.Sprintf("/topic/%s", url.QueryEscape(topicName))
	}

	for _, addr := range s.context.nsqadmin.options.NSQLookupdHTTPAddresses {
		endpoint := fmt.Sprintf("http://%s/delete_channel?topic=%s&channel=%s",
			addr, url.QueryEscape(topicName), url.QueryEscape(channelName))
		log.Printf("LOOKUPD: querying %s", endpoint)

		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
			continue
		}
	}

	producers := s.getProducers(topicName)
	for _, addr := range producers {
		endpoint := fmt.Sprintf("http://%s/delete_channel?topic=%s&channel=%s",
			addr, url.QueryEscape(topicName), url.QueryEscape(channelName))
		log.Printf("NSQD: querying %s", endpoint)
		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: nsqd %s - %s", endpoint, err.Error())
			continue
		}
	}

	s.notifyAdminAction("delete_channel", topicName, channelName, "", req)

	http.Redirect(w, req, rd, 302)
}
예제 #10
0
func TestTombstoneRecover(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	options := NewNSQLookupdOptions()
	options.TombstoneLifetime = 50 * time.Millisecond
	tcpAddr, httpAddr, nsqlookupd := mustStartLookupd(options)
	defer nsqlookupd.Exit()

	topicName := "tombstone_recover"
	topicName2 := topicName + "2"

	conn := mustConnectLookupd(t, tcpAddr)
	identify(t, conn, "ip.address", 5000, 5555, "fake-version")

	nsq.Register(topicName, "channel1").WriteTo(conn)
	_, err := nsq.ReadResponse(conn)
	assert.Equal(t, err, nil)

	nsq.Register(topicName2, "channel2").WriteTo(conn)
	_, err = nsq.ReadResponse(conn)
	assert.Equal(t, err, nil)

	endpoint := fmt.Sprintf("http://%s/tombstone_topic_producer?topic=%s&node=%s", httpAddr, topicName, "ip.address:5555")
	_, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)

	endpoint = fmt.Sprintf("http://%s/lookup?topic=%s", httpAddr, topicName)
	data, err := util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	producers, _ := data.Get("producers").Array()
	assert.Equal(t, len(producers), 0)

	endpoint = fmt.Sprintf("http://%s/lookup?topic=%s", httpAddr, topicName2)
	data, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	producers, _ = data.Get("producers").Array()
	assert.Equal(t, len(producers), 1)

	time.Sleep(55 * time.Millisecond)

	endpoint = fmt.Sprintf("http://%s/lookup?topic=%s", httpAddr, topicName)
	data, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	producers, _ = data.Get("producers").Array()
	assert.Equal(t, len(producers), 1)
}
예제 #11
0
// DeleteTopic deletes the given topic from the provided nsqlookupd instance
func DeleteTopic(topic, nsqlookupdHttpAddr string) (err error) {
	endpoint := fmt.Sprintf("http://%s/delete_topic?topic=%s", nsqlookupdHttpAddr, url.QueryEscape(topic))
	_, err = util.ApiRequest(endpoint)
	if err != nil {
		log.Printf("ERROR: Could not delete topic %s: %s", topic, err)
	}
	return
}
예제 #12
0
func TestChannelUnregister(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	tcpAddr, httpAddr, nsqlookupd := mustStartLookupd(NewNSQLookupdOptions())
	defer nsqlookupd.Exit()

	topics := nsqlookupd.DB.FindRegistrations("topic", "*", "*")
	assert.Equal(t, len(topics), 0)

	topicName := "channel_unregister"

	conn := mustConnectLookupd(t, tcpAddr)
	tcpPort := 5000
	httpPort := 5555
	identify(t, conn, "ip.address", tcpPort, httpPort, "fake-version")

	nsq.Register(topicName, "ch1").WriteTo(conn)
	v, err := nsq.ReadResponse(conn)
	assert.Equal(t, err, nil)
	assert.Equal(t, v, []byte("OK"))

	topics = nsqlookupd.DB.FindRegistrations("topic", topicName, "")
	assert.Equal(t, len(topics), 1)

	channels := nsqlookupd.DB.FindRegistrations("channel", topicName, "*")
	assert.Equal(t, len(channels), 1)

	nsq.UnRegister(topicName, "ch1").WriteTo(conn)
	v, err = nsq.ReadResponse(conn)
	assert.Equal(t, err, nil)
	assert.Equal(t, v, []byte("OK"))

	topics = nsqlookupd.DB.FindRegistrations("topic", topicName, "")
	assert.Equal(t, len(topics), 1)

	// we should still have mention of the topic even though there is no producer
	// (ie. we haven't *deleted* the channel, just unregistered as a producer)
	channels = nsqlookupd.DB.FindRegistrations("channel", topicName, "*")
	assert.Equal(t, len(channels), 1)

	endpoint := fmt.Sprintf("http://%s/lookup?topic=%s", httpAddr, topicName)
	data, err := util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	returnedProducers, err := data.Get("producers").Array()
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedProducers), 1)
}
예제 #13
0
파일: stats_test.go 프로젝트: hpf311/nsq
func TestClientAttributes(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	userAgent := "Test User Agent"

	options := NewNSQDOptions()
	options.Verbose = true
	options.SnappyEnabled = true
	tcpAddr, httpAddr, nsqd := mustStartNSQD(options)
	defer nsqd.Exit()

	conn, err := mustConnectNSQD(tcpAddr)
	assert.Equal(t, err, nil)

	data := identify(t, conn, map[string]interface{}{
		"snappy":     true,
		"user_agent": userAgent,
	}, nsq.FrameTypeResponse)
	resp := struct {
		Snappy    bool   `json:"snappy"`
		UserAgent string `json:"user_agent"`
	}{}
	err = json.Unmarshal(data, &resp)
	assert.Equal(t, err, nil)
	assert.Equal(t, resp.Snappy, true)

	r := snappystream.NewReader(conn, snappystream.SkipVerifyChecksum)
	w := snappystream.NewWriter(conn)

	topicName := "test_client_attributes" + strconv.Itoa(int(time.Now().Unix()))
	sub(t, readWriter{r, w}, topicName, "ch")

	// need to give nsqd a chance to sub the client
	time.Sleep(50 * time.Millisecond)

	testUrl := fmt.Sprintf("http://127.0.0.1:%d/stats?format=json", httpAddr.Port)

	statsData, err := util.ApiRequest(testUrl)
	if err != nil {
		t.Fatalf(err.Error())
	}
	client := statsData.Get("topics").GetIndex(0).Get("channels").GetIndex(0).Get("clients").GetIndex(0)
	assert.Equal(t, client.Get("user_agent").MustString(), userAgent)
	assert.Equal(t, client.Get("snappy").MustBool(), true)
}
예제 #14
0
func TestClientAttributes(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	userAgent := "Test User Agent"

	*verbose = true
	options := NewNSQDOptions()
	options.SnappyEnabled = true
	tcpAddr, httpAddr, nsqd := mustStartNSQD(options)
	defer nsqd.Exit()

	conn, err := mustConnectNSQD(tcpAddr)
	assert.Equal(t, err, nil)

	data := identifyFeatureNegotiation(t, conn, map[string]interface{}{"snappy": true, "user_agent": userAgent})
	r := struct {
		Snappy    bool   `json:"snappy"`
		UserAgent string `json:"user_agent"`
	}{}
	err = json.Unmarshal(data, &r)
	assert.Equal(t, err, nil)
	assert.Equal(t, r.Snappy, true)

	compressConn := snappystream.NewReader(conn, snappystream.SkipVerifyChecksum)

	w := snappystream.NewWriter(conn)

	rw := readWriter{compressConn, w}

	topicName := "test_client_attributes" + strconv.Itoa(int(time.Now().Unix()))
	sub(t, rw, topicName, "ch")

	err = nsq.Ready(1).Write(rw)
	assert.Equal(t, err, nil)

	testUrl := fmt.Sprintf("http://127.0.0.1:%d/stats?format=json", httpAddr.Port)

	statsData, err := util.ApiRequest(testUrl)
	if err != nil {
		t.Fatalf(err.Error())
	}
	client := statsData.Get("topics").GetIndex(0).Get("channels").GetIndex(0).Get("clients").GetIndex(0)
	assert.Equal(t, client.Get("user_agent").MustString(), userAgent)
	assert.Equal(t, client.Get("snappy").MustBool(), true)
}
예제 #15
0
파일: lookupd.go 프로젝트: michaelhood/nsq
// GetLookupdTopicProducers returns a []string of the broadcast_address:http_port of all the
// producers for a given topic by unioning the results returned from the given lookupd
func GetLookupdTopicProducers(topic string, lookupdHTTPAddrs []string) ([]string, error) {
	success := false
	allSources := make([]string, 0)
	var lock sync.Mutex
	var wg sync.WaitGroup

	for _, addr := range lookupdHTTPAddrs {
		wg.Add(1)

		endpoint := fmt.Sprintf("http://%s/lookup?topic=%s", addr, url.QueryEscape(topic))
		log.Printf("LOOKUPD: querying %s", endpoint)

		go func(endpoint string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()
			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true
			producers := data.Get("producers")
			producersArray, _ := producers.Array()
			for i := range producersArray {
				producer := producers.GetIndex(i)
				address := producer.Get("address").MustString() //TODO: remove for 1.0
				broadcastAddress := producer.Get("broadcast_address").MustString()
				if broadcastAddress == "" {
					broadcastAddress = address
				}
				httpPort := producer.Get("http_port").MustInt()
				key := fmt.Sprintf("%s:%d", broadcastAddress, httpPort)
				allSources = util.StringAdd(allSources, key)
			}
		}(endpoint)
	}
	wg.Wait()
	if success == false {
		return nil, errors.New("unable to query any lookupd")
	}
	return allSources, nil
}
예제 #16
0
파일: lookupd.go 프로젝트: michaelhood/nsq
// GetNSQDTopicProducers returns a []string containing the addresses of all the nsqd
// that produce the given topic out of the given nsqd
func GetNSQDTopicProducers(topic string, nsqdHTTPAddrs []string) ([]string, error) {
	addresses := make([]string, 0)
	var lock sync.Mutex
	var wg sync.WaitGroup
	success := false
	for _, addr := range nsqdHTTPAddrs {
		wg.Add(1)
		endpoint := fmt.Sprintf("http://%s/stats?format=json", addr)
		log.Printf("NSQD: querying %s", endpoint)

		go func(endpoint string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()
			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true
			topicList, _ := data.Get("topics").Array()
			for _, topicInfo := range topicList {
				topicInfo := topicInfo.(map[string]interface{})
				topicName := topicInfo["topic_name"].(string)
				if topicName == topic {
					addresses = append(addresses, addr)
					return
				}
			}
		}(endpoint)
	}
	wg.Wait()
	if success == false {
		return nil, errors.New("unable to query any nsqd")
	}
	return addresses, nil
}
예제 #17
0
파일: lookupd.go 프로젝트: michaelhood/nsq
// GetNSQDStats returns aggregate topic and channel stats from the given NSQD instances
//
// if selectedTopic is empty, this will return stats for *all* topic/channels
// and the ChannelStats dict will be keyed by topic + ':' + channel
func GetNSQDStats(nsqdHTTPAddrs []string, selectedTopic string) ([]*TopicStats, map[string]*ChannelStats, error) {
	var lock sync.Mutex
	var wg sync.WaitGroup

	topicStatsList := make(TopicStatsList, 0)
	channelStatsMap := make(map[string]*ChannelStats)

	success := false
	for _, addr := range nsqdHTTPAddrs {
		wg.Add(1)
		endpoint := fmt.Sprintf("http://%s/stats?format=json", addr)
		log.Printf("NSQD: querying %s", endpoint)

		go func(endpoint string, addr string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()

			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true

			topics, _ := data.Get("topics").Array()
			for _, t := range topics {
				t := t.(map[string]interface{})

				topicName := t["topic_name"].(string)
				if selectedTopic != "" && topicName != selectedTopic {
					continue
				}
				depth := int64(t["depth"].(float64))
				backendDepth := int64(t["backend_depth"].(float64))

				topicStats := &TopicStats{
					HostAddress:  addr,
					TopicName:    topicName,
					Depth:        depth,
					BackendDepth: backendDepth,
					MemoryDepth:  depth - backendDepth,
					MessageCount: int64(t["message_count"].(float64)),
					ChannelCount: len(t["channels"].([]interface{})),
				}
				topicStatsList = append(topicStatsList, topicStats)

				channels := t["channels"].([]interface{})
				for _, c := range channels {
					c := c.(map[string]interface{})

					channelName := c["channel_name"].(string)
					key := channelName
					if selectedTopic == "" {
						key = fmt.Sprintf("%s:%s", topicName, channelName)
					}

					channelStats, ok := channelStatsMap[key]
					if !ok {
						channelStats = &ChannelStats{
							HostAddress: addr,
							TopicName:   topicName,
							ChannelName: channelName,
						}
						channelStatsMap[key] = channelStats
					}

					depth := int64(c["depth"].(float64))
					backendDepth := int64(c["backend_depth"].(float64))
					var paused bool
					pausedInterface, ok := c["paused"]
					if ok {
						paused = pausedInterface.(bool)
					}
					clients := c["clients"].([]interface{})

					hostChannelStats := &ChannelStats{
						HostAddress:   addr,
						TopicName:     topicName,
						ChannelName:   channelName,
						Depth:         depth,
						BackendDepth:  backendDepth,
						MemoryDepth:   depth - backendDepth,
						Paused:        paused,
						InFlightCount: int64(c["in_flight_count"].(float64)),
						DeferredCount: int64(c["deferred_count"].(float64)),
						MessageCount:  int64(c["message_count"].(float64)),
						RequeueCount:  int64(c["requeue_count"].(float64)),
						TimeoutCount:  int64(c["timeout_count"].(float64)),
						// TODO: this is sort of wrong; clients should be de-duped
						// client A that connects to NSQD-a and NSQD-b should only be counted once. right?
						ClientCount: len(clients),
					}
					channelStats.Add(hostChannelStats)

					for _, client := range clients {
						client := client.(map[string]interface{})
						connected := time.Unix(int64(client["connect_ts"].(float64)), 0)
						connectedDuration := time.Now().Sub(connected).Seconds()
						clientInfo := &ClientInfo{
							HostAddress:       addr,
							ClientVersion:     client["version"].(string),
							ClientIdentifier:  fmt.Sprintf("%s:%s", client["name"].(string), strings.Split(client["remote_address"].(string), ":")[1]),
							ConnectedDuration: time.Duration(int64(connectedDuration)) * time.Second, // truncate to second
							InFlightCount:     int(client["in_flight_count"].(float64)),
							ReadyCount:        int(client["ready_count"].(float64)),
							FinishCount:       int64(client["finish_count"].(float64)),
							RequeueCount:      int64(client["requeue_count"].(float64)),
							MessageCount:      int64(client["message_count"].(float64)),
						}
						hostChannelStats.Clients = append(hostChannelStats.Clients, clientInfo)
						channelStats.Clients = append(channelStats.Clients, clientInfo)
					}
					sort.Sort(ClientsByHost{hostChannelStats.Clients})
					sort.Sort(ClientsByHost{channelStats.Clients})

					topicStats.Channels = append(topicStats.Channels, hostChannelStats)
				}
			}
			sort.Sort(TopicStatsByHost{topicStatsList})
		}(endpoint, addr)
	}
	wg.Wait()
	if success == false {
		return nil, nil, errors.New("unable to query any nsqd")
	}
	return topicStatsList, channelStatsMap, nil
}
예제 #18
0
func TestBasicLookupd(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	tcpAddr, httpAddr, nsqlookupd := mustStartLookupd(NewNSQLookupdOptions())
	defer nsqlookupd.Exit()

	topics := nsqlookupd.DB.FindRegistrations("topic", "*", "*")
	assert.Equal(t, len(topics), 0)

	topicName := "connectmsg"

	conn := mustConnectLookupd(t, tcpAddr)
	tcpPort := 5000
	httpPort := 5555
	identify(t, conn, "ip.address", tcpPort, httpPort, "fake-version")

	nsq.Register(topicName, "channel1").WriteTo(conn)
	v, err := nsq.ReadResponse(conn)
	assert.Equal(t, err, nil)
	assert.Equal(t, v, []byte("OK"))

	endpoint := fmt.Sprintf("http://%s/nodes", httpAddr)
	data, err := util.ApiRequest(endpoint)
	log.Printf("got %v", data)
	returnedProducers, err := data.Get("producers").Array()
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedProducers), 1)

	topics = nsqlookupd.DB.FindRegistrations("topic", topicName, "")
	assert.Equal(t, len(topics), 1)

	producers := nsqlookupd.DB.FindProducers("topic", topicName, "")
	assert.Equal(t, len(producers), 1)
	producer := producers[0]

	assert.Equal(t, producer.peerInfo.BroadcastAddress, "ip.address")
	assert.Equal(t, producer.peerInfo.Hostname, "ip.address")
	assert.Equal(t, producer.peerInfo.TcpPort, tcpPort)
	assert.Equal(t, producer.peerInfo.HttpPort, httpPort)

	endpoint = fmt.Sprintf("http://%s/topics", httpAddr)
	data, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	returnedTopics, err := data.Get("topics").Array()
	log.Printf("got returnedTopics %v", returnedTopics)
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedTopics), 1)

	endpoint = fmt.Sprintf("http://%s/lookup?topic=%s", httpAddr, topicName)
	data, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	returnedChannels, err := data.Get("channels").Array()
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedChannels), 1)

	returnedProducers, err = data.Get("producers").Array()
	log.Printf("got returnedProducers %v", returnedProducers)
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedProducers), 1)
	for i := range returnedProducers {
		producer := data.Get("producers").GetIndex(i)
		log.Printf("producer %v", producer)

		port, err := producer.Get("tcp_port").Int()
		assert.Equal(t, err, nil)
		assert.Equal(t, port, tcpPort)

		port, err = producer.Get("http_port").Int()
		assert.Equal(t, err, nil)
		assert.Equal(t, port, httpPort)

		broadcastaddress, err := producer.Get("broadcast_address").String()
		assert.Equal(t, err, nil)
		assert.Equal(t, broadcastaddress, "ip.address")

		ver, err := producer.Get("version").String()
		assert.Equal(t, err, nil)
		assert.Equal(t, ver, "fake-version")
	}

	conn.Close()
	time.Sleep(10 * time.Millisecond)

	// now there should be no producers, but still topic/channel entries
	data, err = util.ApiRequest(endpoint)
	assert.Equal(t, err, nil)
	returnedChannels, err = data.Get("channels").Array()
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedChannels), 1)
	returnedProducers, err = data.Get("producers").Array()
	assert.Equal(t, err, nil)
	assert.Equal(t, len(returnedProducers), 0)
}
예제 #19
0
func TestNsqdToLookupd(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	topicName := "cluster_test" + strconv.Itoa(int(time.Now().Unix()))

	hostname, err := os.Hostname()
	if err != nil {
		t.Fatalf("ERROR: failed to get hostname - %s", err.Error())
	}

	_, err = util.ApiRequest(fmt.Sprintf("http://127.0.0.1:4151/create_topic?topic=%s", topicName))
	if err != nil {
		t.Fatalf(err.Error())
	}

	_, err = util.ApiRequest(fmt.Sprintf("http://127.0.0.1:4151/create_channel?topic=%s&channel=ch", topicName))
	if err != nil {
		t.Fatalf(err.Error())
	}

	// allow some time for nsqd to push info to nsqlookupd
	time.Sleep(350 * time.Millisecond)

	data, err := util.ApiRequest("http://127.0.0.1:4161/debug")
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ := data.Get("topic:" + topicName + ":").Array()
	assert.Equal(t, len(producers), 1)

	producer := producers[0]
	producerData, _ := producer.(map[string]interface{})
	address := producerData["address"].(string) //TODO: remove for 1.0
	producerHostname := producerData["hostname"].(string)
	broadcastAddress := producerData["broadcast_address"].(string)
	port := int(producerData["tcp_port"].(float64))
	tombstoned := producerData["tombstoned"].(bool)
	assert.Equal(t, address, hostname)
	assert.Equal(t, producerHostname, hostname)
	assert.Equal(t, broadcastAddress, hostname)
	assert.Equal(t, port, 4150)
	assert.Equal(t, tombstoned, false)

	producers, _ = data.Get("channel:" + topicName + ":ch").Array()
	assert.Equal(t, len(producers), 1)

	producer = producers[0]
	producerData, _ = producer.(map[string]interface{})
	address = producerData["address"].(string) //TODO: remove for 1.0
	producerHostname = producerData["hostname"].(string)
	broadcastAddress = producerData["broadcast_address"].(string)

	port = int(producerData["tcp_port"].(float64))
	tombstoned = producerData["tombstoned"].(bool)
	assert.Equal(t, address, hostname)
	assert.Equal(t, producerHostname, hostname)
	assert.Equal(t, broadcastAddress, hostname)
	assert.Equal(t, port, 4150)
	assert.Equal(t, tombstoned, false)

	data, err = util.ApiRequest("http://127.0.0.1:4161/lookup?topic=" + topicName)
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ = data.Get("producers").Array()
	assert.Equal(t, len(producers), 1)

	producer = producers[0]
	producerData, _ = producer.(map[string]interface{})
	address = producerData["address"].(string) //TODO: remove for 1.0
	producerHostname = producerData["hostname"].(string)
	broadcastAddress = producerData["broadcast_address"].(string)
	port = int(producerData["tcp_port"].(float64))
	assert.Equal(t, address, hostname)
	assert.Equal(t, producerHostname, hostname)
	assert.Equal(t, broadcastAddress, hostname)
	assert.Equal(t, port, 4150)

	channels, _ := data.Get("channels").Array()
	assert.Equal(t, len(channels), 1)

	channel := channels[0].(string)
	assert.Equal(t, channel, "ch")

	data, err = util.ApiRequest("http://127.0.0.1:4151/delete_topic?topic=" + topicName)
	if err != nil {
		t.Fatalf(err.Error())
	}

	// allow some time for nsqd to push info to nsqlookupd
	time.Sleep(350 * time.Millisecond)

	data, err = util.ApiRequest("http://127.0.0.1:4161/lookup?topic=" + topicName)
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ = data.Get("producers").Array()
	assert.Equal(t, len(producers), 0)

	data, err = util.ApiRequest("http://127.0.0.1:4161/debug")
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ = data.Get("topic:" + topicName + ":").Array()
	assert.Equal(t, len(producers), 0)

	producers, _ = data.Get("channel:" + topicName + ":ch").Array()
	assert.Equal(t, len(producers), 0)
}
예제 #20
0
// GetNSQDStats returns aggregate topic and channel stats from the given NSQD instances
//
// if selectedTopic is empty, this will return stats for *all* topic/channels
// and the ChannelStats dict will be keyed by topic + ':' + channel
func GetNSQDStats(nsqdHTTPAddrs []string, selectedTopic string) ([]*TopicStats, map[string]*ChannelStats, error) {
	var lock sync.Mutex
	var wg sync.WaitGroup

	topicStatsList := make(TopicStatsList, 0)
	channelStatsMap := make(map[string]*ChannelStats)

	success := false
	for _, addr := range nsqdHTTPAddrs {
		wg.Add(1)
		endpoint := fmt.Sprintf("http://%s/stats?format=json", addr)
		log.Printf("NSQD: querying %s", endpoint)

		go func(endpoint string, addr string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()

			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true

			topics, _ := data.Get("topics").Array()
			for i := range topics {
				t := data.Get("topics").GetIndex(i)

				topicName := t.Get("topic_name").MustString()
				if selectedTopic != "" && topicName != selectedTopic {
					continue
				}
				depth := t.Get("depth").MustInt64()
				backendDepth := t.Get("backend_depth").MustInt64()
				channels := t.Get("channels").MustArray()

				e2eProcessingLatency := util.E2eProcessingLatencyAggregateFromJson(t.Get("e2e_processing_latency"), topicName, "", addr)

				topicStats := &TopicStats{
					HostAddress:  addr,
					TopicName:    topicName,
					Depth:        depth,
					BackendDepth: backendDepth,
					MemoryDepth:  depth - backendDepth,
					MessageCount: t.Get("message_count").MustInt64(),
					ChannelCount: len(channels),
					Paused:       t.Get("paused").MustBool(),

					E2eProcessingLatency: e2eProcessingLatency,
				}
				topicStatsList = append(topicStatsList, topicStats)

				for j := range channels {
					c := t.Get("channels").GetIndex(j)

					channelName := c.Get("channel_name").MustString()
					key := channelName
					if selectedTopic == "" {
						key = fmt.Sprintf("%s:%s", topicName, channelName)
					}

					channelStats, ok := channelStatsMap[key]
					if !ok {
						channelStats = &ChannelStats{
							HostAddress: addr,
							TopicName:   topicName,
							ChannelName: channelName,
						}
						channelStatsMap[key] = channelStats
					}

					depth := c.Get("depth").MustInt64()
					backendDepth := c.Get("backend_depth").MustInt64()
					clients := c.Get("clients").MustArray()

					e2eProcessingLatency := util.E2eProcessingLatencyAggregateFromJson(c.Get("e2e_processing_latency"), topicName, channelName, addr)

					hostChannelStats := &ChannelStats{
						HostAddress:   addr,
						TopicName:     topicName,
						ChannelName:   channelName,
						Depth:         depth,
						BackendDepth:  backendDepth,
						MemoryDepth:   depth - backendDepth,
						Paused:        c.Get("paused").MustBool(),
						InFlightCount: c.Get("in_flight_count").MustInt64(),
						DeferredCount: c.Get("deferred_count").MustInt64(),
						MessageCount:  c.Get("message_count").MustInt64(),
						RequeueCount:  c.Get("requeue_count").MustInt64(),
						TimeoutCount:  c.Get("timeout_count").MustInt64(),

						E2eProcessingLatency: e2eProcessingLatency,
						// TODO: this is sort of wrong; clients should be de-duped
						// client A that connects to NSQD-a and NSQD-b should only be counted once. right?
						ClientCount: len(clients),
					}
					channelStats.Add(hostChannelStats)

					for k := range clients {
						client := c.Get("clients").GetIndex(k)

						connected := time.Unix(client.Get("connect_ts").MustInt64(), 0)
						connectedDuration := time.Now().Sub(connected).Seconds()

						clientInfo := &ClientInfo{
							HostAddress:     addr,
							ClientVersion:   client.Get("version").MustString(),
							ClientUserAgent: client.Get("user_agent").MustString(),
							ClientIdentifier: fmt.Sprintf("%s:%s", client.Get("name").MustString(),
								strings.Split(client.Get("remote_address").MustString(), ":")[1]),
							ConnectedDuration: time.Duration(int64(connectedDuration)) * time.Second, // truncate to second
							InFlightCount:     client.Get("in_flight_count").MustInt(),
							ReadyCount:        client.Get("ready_count").MustInt(),
							FinishCount:       client.Get("finish_count").MustInt64(),
							RequeueCount:      client.Get("requeue_count").MustInt64(),
							MessageCount:      client.Get("message_count").MustInt64(),
							SampleRate:        int32(client.Get("sample_rate").MustInt()),
							TLS:               client.Get("tls").MustBool(),
							Deflate:           client.Get("deflate").MustBool(),
							Snappy:            client.Get("snappy").MustBool(),
						}
						hostChannelStats.Clients = append(hostChannelStats.Clients, clientInfo)
						channelStats.Clients = append(channelStats.Clients, clientInfo)
					}
					sort.Sort(ClientsByHost{hostChannelStats.Clients})
					sort.Sort(ClientsByHost{channelStats.Clients})

					topicStats.Channels = append(topicStats.Channels, hostChannelStats)
				}
			}
			sort.Sort(TopicStatsByHost{topicStatsList})
		}(endpoint, addr)
	}
	wg.Wait()
	if success == false {
		return nil, nil, errors.New("unable to query any nsqd")
	}
	return topicStatsList, channelStatsMap, nil
}
예제 #21
0
func TestNsqdToLookupd(t *testing.T) {
	log.SetOutput(ioutil.Discard)
	defer log.SetOutput(os.Stdout)

	topicName := "cluster_test" + strconv.Itoa(int(time.Now().Unix()))

	hostname, err := os.Hostname()
	if err != nil {
		t.Fatalf("ERROR: failed to get hostname - %s", err.Error())
	}

	_, err = util.ApiRequest(fmt.Sprintf("http://127.0.0.1:4151/create_topic?topic=%s", topicName))
	if err != nil {
		t.Fatalf(err.Error())
	}

	_, err = util.ApiRequest(fmt.Sprintf("http://127.0.0.1:4151/create_channel?topic=%s&channel=ch", topicName))
	if err != nil {
		t.Fatalf(err.Error())
	}

	// allow some time for nsqd to push info to nsqlookupd
	time.Sleep(350 * time.Millisecond)

	data, err := util.ApiRequest("http://127.0.0.1:4161/debug")
	if err != nil {
		t.Fatalf(err.Error())
	}

	topicData := data.Get("topic:" + topicName + ":")
	producers, _ := topicData.Array()
	assert.Equal(t, len(producers), 1)

	producer := topicData.GetIndex(0)
	assert.Equal(t, producer.Get("hostname").MustString(), hostname)
	assert.Equal(t, producer.Get("broadcast_address").MustString(), hostname)
	assert.Equal(t, producer.Get("tcp_port").MustInt(), 4150)
	assert.Equal(t, producer.Get("tombstoned").MustBool(), false)

	channelData := data.Get("channel:" + topicName + ":ch")
	producers, _ = channelData.Array()
	assert.Equal(t, len(producers), 1)

	producer = topicData.GetIndex(0)
	assert.Equal(t, producer.Get("hostname").MustString(), hostname)
	assert.Equal(t, producer.Get("broadcast_address").MustString(), hostname)
	assert.Equal(t, producer.Get("tcp_port").MustInt(), 4150)
	assert.Equal(t, producer.Get("tombstoned").MustBool(), false)

	data, err = util.ApiRequest("http://127.0.0.1:4161/lookup?topic=" + topicName)
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ = data.Get("producers").Array()
	assert.Equal(t, len(producers), 1)

	producer = data.Get("producers").GetIndex(0)
	assert.Equal(t, producer.Get("hostname").MustString(), hostname)
	assert.Equal(t, producer.Get("broadcast_address").MustString(), hostname)
	assert.Equal(t, producer.Get("tcp_port").MustInt(), 4150)

	channels, _ := data.Get("channels").Array()
	assert.Equal(t, len(channels), 1)

	channel := channels[0].(string)
	assert.Equal(t, channel, "ch")

	data, err = util.ApiRequest("http://127.0.0.1:4151/delete_topic?topic=" + topicName)
	if err != nil {
		t.Fatalf(err.Error())
	}

	// allow some time for nsqd to push info to nsqlookupd
	time.Sleep(350 * time.Millisecond)

	data, err = util.ApiRequest("http://127.0.0.1:4161/lookup?topic=" + topicName)
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ = data.Get("producers").Array()
	assert.Equal(t, len(producers), 0)

	data, err = util.ApiRequest("http://127.0.0.1:4161/debug")
	if err != nil {
		t.Fatalf(err.Error())
	}

	producers, _ = data.Get("topic:" + topicName + ":").Array()
	assert.Equal(t, len(producers), 0)

	producers, _ = data.Get("channel:" + topicName + ":ch").Array()
	assert.Equal(t, len(producers), 0)
}
예제 #22
0
// GetLookupdProducers returns a slice of pointers to Producer structs
// containing metadata for each node connected to given lookupds
func GetLookupdProducers(lookupdHTTPAddrs []string) ([]*Producer, error) {
	success := false
	allProducers := make(map[string]*Producer, 0)
	output := make([]*Producer, 0)
	maxVersion, _ := semver.Parse("0.0.0")
	var lock sync.Mutex
	var wg sync.WaitGroup

	for _, addr := range lookupdHTTPAddrs {
		wg.Add(1)
		endpoint := fmt.Sprintf("http://%s/nodes", addr)
		log.Printf("LOOKUPD: querying %s", endpoint)
		go func(addr string, endpoint string) {
			data, err := util.ApiRequest(endpoint)
			lock.Lock()
			defer lock.Unlock()
			defer wg.Done()
			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				return
			}
			success = true

			producers := data.Get("producers")
			producersArray, _ := producers.Array()
			for i := range producersArray {
				producer := producers.GetIndex(i)
				remoteAddress := producer.Get("remote_address").MustString()
				if remoteAddress == "" {
					remoteAddress = "NA"
				}
				hostname := producer.Get("hostname").MustString()
				broadcastAddress := producer.Get("broadcast_address").MustString()
				httpPort := producer.Get("http_port").MustInt()
				tcpPort := producer.Get("tcp_port").MustInt()
				key := fmt.Sprintf("%s:%d:%d", broadcastAddress, httpPort, tcpPort)
				p, ok := allProducers[key]
				if !ok {
					var tombstones []bool
					var topics ProducerTopics

					topicList, _ := producer.Get("topics").Array()
					tombstoneList, err := producer.Get("tombstones").Array()
					if err != nil {
						// backwards compatibility with nsqlookupd < v0.2.22
						tombstones = make([]bool, len(topicList))
					} else {
						for _, t := range tombstoneList {
							tombstones = append(tombstones, t.(bool))
						}
					}

					for i, t := range topicList {
						topics = append(topics, ProducerTopic{
							Topic:      t.(string),
							Tombstoned: tombstones[i],
						})
					}

					sort.Sort(topics)

					version := producer.Get("version").MustString("unknown")
					versionObj, err := semver.Parse(version)
					if err != nil {
						versionObj = maxVersion
					}
					if maxVersion.Less(versionObj) {
						maxVersion = versionObj
					}

					p = &Producer{
						Hostname:         hostname,
						BroadcastAddress: broadcastAddress,
						TcpPort:          tcpPort,
						HttpPort:         httpPort,
						Version:          version,
						VersionObj:       versionObj,
						Topics:           topics,
					}
					allProducers[key] = p
					output = append(output, p)
				}
				p.RemoteAddresses = append(p.RemoteAddresses, fmt.Sprintf("%s/%s", addr, remoteAddress))
			}
		}(addr, endpoint)
	}
	wg.Wait()
	for _, producer := range allProducers {
		if producer.VersionObj.Less(maxVersion) {
			producer.OutOfDate = true
		}
	}
	sort.Sort(ProducersByHost{output})
	if success == false {
		return nil, errors.New("unable to query any lookupd")
	}
	return output, nil
}
예제 #23
0
파일: http.go 프로젝트: jsocol/nsq
func (s *httpServer) createTopicChannelHandler(w http.ResponseWriter, req *http.Request) {
	if req.Method != "POST" {
		log.Printf("ERROR: invalid %s to POST only method", req.Method)
		http.Error(w, "INVALID_REQUEST", 500)
		return
	}
	reqParams := &util.PostParams{req}

	topicName, err := reqParams.Get("topic")
	if err != nil || !nsq.IsValidTopicName(topicName) {
		http.Error(w, "INVALID_TOPIC", 500)
		return
	}

	channelName, err := reqParams.Get("channel")
	if err != nil || (len(channelName) > 0 && !nsq.IsValidChannelName(channelName)) {
		http.Error(w, "INVALID_CHANNEL", 500)
		return
	}

	for _, addr := range s.context.nsqadmin.options.NSQLookupdHTTPAddresses {
		endpoint := fmt.Sprintf("http://%s/create_topic?topic=%s", addr, url.QueryEscape(topicName))
		log.Printf("LOOKUPD: querying %s", endpoint)
		_, err := util.ApiRequest(endpoint)
		if err != nil {
			log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
			continue
		}
	}

	s.notifyAdminAction("create_topic", topicName, "", "", req)

	if len(channelName) > 0 {
		for _, addr := range s.context.nsqadmin.options.NSQLookupdHTTPAddresses {
			endpoint := fmt.Sprintf("http://%s/create_channel?topic=%s&channel=%s",
				addr, url.QueryEscape(topicName), url.QueryEscape(channelName))
			log.Printf("LOOKUPD: querying %s", endpoint)
			_, err := util.ApiRequest(endpoint)
			if err != nil {
				log.Printf("ERROR: lookupd %s - %s", endpoint, err.Error())
				continue
			}
		}

		// TODO: we can remove this when we push new channel information from nsqlookupd -> nsqd
		producers, _ := lookupd.GetLookupdTopicProducers(topicName, s.context.nsqadmin.options.NSQLookupdHTTPAddresses)
		for _, addr := range producers {
			endpoint := fmt.Sprintf("http://%s/create_channel?topic=%s&channel=%s",
				addr, url.QueryEscape(topicName), url.QueryEscape(channelName))
			log.Printf("NSQD: querying %s", endpoint)
			_, err := util.ApiRequest(endpoint)
			if err != nil {
				log.Printf("ERROR: nsqd %s - %s", endpoint, err.Error())
				continue
			}
		}
		s.notifyAdminAction("create_channel", topicName, channelName, "", req)
	}

	http.Redirect(w, req, "/lookup", 302)
}