To update the configuration, use `mc admin config get` command to get the current configuration.

```sh
$ mc admin config get myminio/ notify_mqtt

	PublisherConfirms bool        `json:"publisherConfirms"`
	QueueDir          string      `json:"queueDir"`
	QueueLimit        uint64      `json:"queueLimit"`
}

// AMQP input constants.
//
// ST1003 We cannot change these exported names.
//
//nolint:staticcheck
const (
	AmqpQueueDir   = "queue_dir"
	AmqpQueueLimit = "queue_limit"

	AmqpURL               = "url"
	AmqpExchange          = "exchange"

	Format     string          `json:"format"`
	URL        xnet.URL        `json:"url"`
	Index      string          `json:"index"`
	QueueDir   string          `json:"queueDir"`
	QueueLimit uint64          `json:"queueLimit"`
	Transport  *http.Transport `json:"-"`
	Username   string          `json:"username"`
	Password   string          `json:"password"`
}

// Validate ElasticsearchArgs fields

	ClientCert        string    `json:"clientCert"`
	ClientKey         string    `json:"clientKey"`
	PingInterval      int64     `json:"pingInterval"`
	QueueDir          string    `json:"queueDir"`
	QueueLimit        uint64    `json:"queueLimit"`
	JetStream         struct {
		Enable bool `json:"enable"`
	} `json:"jetStream"`
	Streaming struct {
		Enable             bool   `json:"enable"`
		ClusterID          string `json:"clusterID"`

			Enable:             enabled,
			Brokers:            brokers,
			Topic:              env.Get(topicEnv, kv.Get(target.KafkaTopic)),
			QueueDir:           env.Get(queueDirEnv, kv.Get(target.KafkaQueueDir)),
			QueueLimit:         queueLimit,
			Version:            env.Get(versionEnv, kv.Get(target.KafkaVersion)),
			BatchSize:          uint32(batchSize),
			BatchCommitTimeout: batchCommitTimeout,
		}

		tlsEnableEnv := target.EnvKafkaTLS

			Value: cfg.TLS.ClientTLSCert,
		},
		config.KV{
			Key:   target.KafkaClientTLSKey,
			Value: cfg.TLS.ClientTLSKey,
		},
		config.KV{
			Key:   target.KafkaQueueLimit,
			Value: strconv.Itoa(int(cfg.QueueLimit)),
		},
		config.KV{
			Key:   target.KafkaTLS,
			Value: config.FormatBool(cfg.TLS.Enable),
		},
		config.KV{
			Key:   target.KafkaTLSSkipVerify,
			Value: config.FormatBool(cfg.TLS.SkipVerify),
		},

  private final ConcurrentHashMap<String, AtomicInteger> hostnames = new ConcurrentHashMap<>();
  private final int hostLimit;

  public Crawler(OkHttpClient client, int queueLimit, int hostLimit) {
    this.client = client;
    this.queue = new LinkedBlockingQueue<>(queueLimit);
    this.hostLimit = hostLimit;
  }

  private void parallelDrainQueue(int threadCount) {
    ExecutorService executor = Executors.newFixedThreadPool(threadCount);