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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,270 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "log" | ||
| "math/rand" | ||
| "net/http" | ||
| "net/url" | ||
| "os" | ||
| "os/signal" | ||
| "strconv" | ||
| "sync/atomic" | ||
| "syscall" | ||
| "time" | ||
|
|
||
| _ "net/http/pprof" | ||
|
|
||
| "github.com/centrifugal/centrifuge" | ||
| "github.com/kelseyhightower/envconfig" | ||
| "go.uber.org/ratelimit" | ||
| ) | ||
|
|
||
| type Config struct { | ||
| Port int `envconfig:"PORT" default:"8000"` | ||
|
|
||
| RedisAddress []string `envconfig:"REDIS_ADDRESS" default:"127.0.0.1:6379"` | ||
|
|
||
| HistorySize int `envconfig:"HISTORY_SIZE" default:"0"` | ||
| HistoryTTL time.Duration `envconfig:"HISTORY_TTL" default:"60s"` | ||
|
|
||
| NumDifferentChannels int `envconfig:"NUM_DIFFERENT_CHANNELS" default:"1024"` | ||
|
|
||
| PublishRateLimit int `envconfig:"PUBLISH_RATE" default:"50000"` | ||
| SubscribeRateLimit int `envconfig:"SUBSCRIBE_RATE" default:"50000"` | ||
| UnsubscribeRateLimit int `envconfig:"UNSUBSCRIBE_RATE" default:"50000"` | ||
| HistoryRateLimit int `envconfig:"HISTORY_RATE" default:"0"` | ||
|
|
||
| MessageSize int `envconfig:"MESSAGE_SIZE" default:"128"` | ||
| } | ||
|
|
||
| func handleLog(e centrifuge.LogEntry) { | ||
| log.Printf("[centrifuge] %s: %v", e.Message, e.Fields) | ||
| } | ||
|
|
||
| func authMiddleware(h http.Handler) http.Handler { | ||
| return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| ctx := r.Context() | ||
| ctx = centrifuge.SetCredentials(ctx, ¢rifuge.Credentials{ | ||
| UserID: "42", | ||
| Info: []byte(`{"name": "Alexander"}`), | ||
| }) | ||
| r = r.WithContext(ctx) | ||
| h.ServeHTTP(w, r) | ||
| }) | ||
| } | ||
|
|
||
| func waitExitSignal(n *centrifuge.Node) { | ||
| sigCh := make(chan os.Signal, 1) | ||
| done := make(chan bool, 1) | ||
| signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM) | ||
| go func() { | ||
| <-sigCh | ||
| _ = n.Shutdown(context.Background()) | ||
| done <- true | ||
| }() | ||
| <-done | ||
| } | ||
|
|
||
| func main() { | ||
| var cfg Config | ||
| err := envconfig.Process("", &cfg) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| log.Printf("NUM_DIFFERENT_CHANNELS=%d, MESSAGE_SIZE=%d, HISTORY_SIZE=%d, HISTORY_TTL=%s, "+ | ||
| "PUBLISH_RATE=%d, SUBSCRIBE_RATE=%d, UNSUBSCRIBE_RATE=%d, HISTORY_RATE=%d", cfg.NumDifferentChannels, | ||
| cfg.MessageSize, cfg.HistorySize, cfg.HistoryTTL, cfg.PublishRateLimit, cfg.SubscribeRateLimit, | ||
| cfg.UnsubscribeRateLimit, cfg.HistoryRateLimit) | ||
|
|
||
| node, _ := centrifuge.New(centrifuge.Config{ | ||
| LogLevel: centrifuge.LogLevelError, | ||
| LogHandler: handleLog, | ||
| }) | ||
|
|
||
| node.OnConnect(func(client *centrifuge.Client) { | ||
| client.OnSubscribe(func(e centrifuge.SubscribeEvent, cb centrifuge.SubscribeCallback) { | ||
| cb(centrifuge.SubscribeReply{}, nil) | ||
| }) | ||
|
|
||
| client.OnPublish(func(e centrifuge.PublishEvent, cb centrifuge.PublishCallback) { | ||
| cb(centrifuge.PublishReply{}, nil) | ||
| }) | ||
| }) | ||
|
|
||
| var redisShardConfigs []centrifuge.RedisShardConfig | ||
|
|
||
| for _, addr := range cfg.RedisAddress { | ||
| if u, err := url.Parse(addr); err != nil { | ||
| log.Printf("connecting to Redis: %s", addr) | ||
| } else { | ||
| log.Printf("connecting to Redis: %s", u.Redacted()) | ||
| } | ||
| redisShardConfigs = append(redisShardConfigs, centrifuge.RedisShardConfig{ | ||
| Address: addr, | ||
| }) | ||
| } | ||
|
|
||
| var redisShards []*centrifuge.RedisShard | ||
| for _, redisConf := range redisShardConfigs { | ||
| redisShard, err := centrifuge.NewRedisShard(node, redisConf) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| redisShards = append(redisShards, redisShard) | ||
| } | ||
|
|
||
| broker, err := centrifuge.NewRedisBroker(node, centrifuge.RedisBrokerConfig{ | ||
| // And configure a couple of shards to use. | ||
| Shards: redisShards, | ||
| }) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| node.SetBroker(broker) | ||
|
|
||
| presenceManager, err := centrifuge.NewRedisPresenceManager(node, centrifuge.RedisPresenceManagerConfig{ | ||
| Shards: redisShards, | ||
| }) | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| node.SetPresenceManager(presenceManager) | ||
|
|
||
| if err := node.Run(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
||
| var publishNum int64 | ||
| var subNum int64 | ||
| var unsubNum int64 | ||
| var historyNum int64 | ||
|
|
||
| if cfg.PublishRateLimit > 0 { | ||
| publishRateLimiter := ratelimit.New(cfg.PublishRateLimit, ratelimit.Per(time.Second)) | ||
| var publishOptions []centrifuge.PublishOption | ||
| if cfg.HistorySize > 0 { | ||
| publishOptions = append(publishOptions, centrifuge.WithHistory(cfg.HistorySize, cfg.HistoryTTL)) | ||
| } | ||
|
|
||
| for i := 0; i < cfg.NumDifferentChannels; i++ { | ||
| i := i | ||
| go func() { | ||
| msg := randString(cfg.MessageSize) | ||
| for { | ||
| publishRateLimiter.Take() | ||
| _, err := node.Publish( | ||
| "channel"+strconv.Itoa(i%cfg.NumDifferentChannels), | ||
| []byte(`{"d": "`+msg+`"}`), | ||
| publishOptions..., | ||
| ) | ||
| if err != nil { | ||
| log.Printf("error publishing to channel: %s", err) | ||
| } | ||
| atomic.AddInt64(&publishNum, 1) | ||
| } | ||
| }() | ||
| } | ||
| } | ||
|
|
||
| if cfg.SubscribeRateLimit > 0 { | ||
| subRateLimiter := ratelimit.New(cfg.SubscribeRateLimit, ratelimit.Per(time.Second)) | ||
| for i := 0; i < cfg.NumDifferentChannels; i++ { | ||
| i := i | ||
| go func() { | ||
| for { | ||
| subRateLimiter.Take() | ||
| err := broker.Subscribe("channel" + strconv.Itoa(i%cfg.NumDifferentChannels)) | ||
| if err != nil { | ||
| log.Printf("error subscribing to channel: %s", err) | ||
| } | ||
| atomic.AddInt64(&subNum, 1) | ||
| } | ||
| }() | ||
| } | ||
| } | ||
|
|
||
| if cfg.UnsubscribeRateLimit > 0 { | ||
| unsubRateLimiter := ratelimit.New(cfg.UnsubscribeRateLimit, ratelimit.Per(time.Second)) | ||
| for i := 0; i < cfg.NumDifferentChannels; i++ { | ||
| i := i | ||
| go func() { | ||
| for { | ||
| unsubRateLimiter.Take() | ||
| err := broker.Unsubscribe("channel" + strconv.Itoa(i%cfg.NumDifferentChannels)) | ||
| if err != nil { | ||
| log.Printf("error unsubscribing from channel: %s", err) | ||
| } | ||
| atomic.AddInt64(&unsubNum, 1) | ||
| } | ||
| }() | ||
| } | ||
| } | ||
|
|
||
| if cfg.HistoryRateLimit > 0 { | ||
| historyRateLimiter := ratelimit.New(cfg.HistoryRateLimit, ratelimit.Per(time.Second)) | ||
| for i := 0; i < cfg.NumDifferentChannels; i++ { | ||
| i := i | ||
| go func() { | ||
| for { | ||
| historyRateLimiter.Take() | ||
| // No publications loaded here now, only stream position. | ||
| _, err := node.History("channel" + strconv.Itoa(i%cfg.NumDifferentChannels)) | ||
| if err != nil { | ||
| log.Printf("error getting history from channel: %s", err) | ||
| } | ||
| atomic.AddInt64(&historyNum, 1) | ||
| } | ||
| }() | ||
| } | ||
| } | ||
|
|
||
| go func() { | ||
| time.Sleep(time.Second) | ||
| prevPublished := int64(0) | ||
| prevSubscribes := int64(0) | ||
| prevUnsubscribes := int64(0) | ||
| prevHistory := int64(0) | ||
| for { | ||
| currentPublished := atomic.LoadInt64(&publishNum) | ||
| currentSubscribes := atomic.LoadInt64(&subNum) | ||
| currentUnsubscribes := atomic.LoadInt64(&unsubNum) | ||
| currentHistory := atomic.LoadInt64(&historyNum) | ||
| log.Printf("Stats per second: published %d, subscribed: %d, unsubscribed: %d, history: %d", | ||
| currentPublished-prevPublished, | ||
| currentSubscribes-prevSubscribes, | ||
| currentUnsubscribes-prevUnsubscribes, | ||
| currentHistory-prevHistory, | ||
| ) | ||
| prevPublished = currentPublished | ||
| prevSubscribes = currentSubscribes | ||
| prevUnsubscribes = currentUnsubscribes | ||
| prevHistory = currentHistory | ||
| time.Sleep(time.Second) | ||
| } | ||
| }() | ||
|
|
||
| http.Handle("/connection/websocket", authMiddleware(centrifuge.NewWebsocketHandler(node, centrifuge.WebsocketConfig{}))) | ||
| http.Handle("/", http.FileServer(http.Dir("./"))) | ||
|
|
||
| go func() { | ||
| if err := http.ListenAndServe(":"+strconv.Itoa(cfg.Port), nil); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| }() | ||
|
|
||
| waitExitSignal(node) | ||
| log.Println("bye!") | ||
| } | ||
|
|
||
| var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ") | ||
|
|
||
| func randString(n int) string { | ||
| random := rand.New(rand.NewSource(time.Now().UnixNano())) | ||
| b := make([]rune, n) | ||
| for i := range b { | ||
| b[i] = letterRunes[random.Intn(len(letterRunes))] | ||
| } | ||
| return string(b) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| Tool to put Centrifuge specific load on Redis setup. | ||
|
|
||
| Once you run it you can estimate the load on Redis setup, Redis resource usage. | ||
|
|
||
| Example usage: | ||
|
|
||
| ```bash | ||
| go build | ||
| REDIS_ADDRESS="redis://test:[email protected]:6379" ./redis-benchmark | ||
| ``` | ||
|
|
||
| Or with Redis Cluster: | ||
|
|
||
| ```bash | ||
| REDIS_ADDRESS="redis+cluster://test:[email protected]:7000" ./redis-benchmark | ||
| ``` | ||
|
|
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| Or with sharding over 2 isolated Redis instances: | ||
|
|
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| ```bash | ||
| REDIS_ADDRESS="redis://test:[email protected]:6379,redis://test:[email protected]:6380" ./redis-benchmark | ||
| ``` | ||
|
|
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| With different bench parameters: | ||
|
|
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| ```bash | ||
| PUBLISH_RATE=200 SUBSCRIBE_RATE=100 UNSUBSCRIBE_RATE=100 REDIS_ADDRESS="redis://test:[email protected]:6379" ./redis-benchmark | ||
| ``` | ||
|
|
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| Or with history streams enabled and history requests: | ||
|
|
||
| ```bash | ||
| HISTORY_SIZE=100 HISTORY_TTL=60s HISTORY_RATE=10000 REDIS_ADDRESS="redis://test:[email protected]:6379" ./redis-benchmark | ||
| ``` |