rabbitmq - 使用兔子，连接到现有队列时如何设置 x-max-length

Question

我有以下 ruby​​ 函数来连接到现有的兔子队列，max_length值为 10000

  def self.send(settings, event_str)
    conn = Bunny.new(
        hostname: settings['host'],
        username: settings['user'],
        password: settings['password'],
        virtual_host: settings['virtual_host']
    )
    conn.start
    ch = conn.create_channel
    q = ch.queue(
        settings['queue'],
        durable: true,
        auto_delete: false,
        x_max_length: 10000
    )
    ch.default_exchange.publish(event_str, :routing_key => q.name)
  end

调用时，返回此错误：

PRECONDITION_FAILED - inequivalent arg 'x-max-length' for queue 'event_queue' in vhost '/sensu': received none but current is the value '100000' of type 'signedint'

兔子版本：2.0.1 Ruby 版本：2.3.1

我已经尝试了各种参数，ch.queue但找不到设置最大队列长度值的方法。

欢迎提出建议。

Answer 1

看起来诀窍是将arguments哈希设置为参数ch.queue

    q = ch.queue(
        settings['queue'],
        durable: true,
        auto_delete: false,
        :arguments => { 'x-max-length' => settings['queue_length'].to_i }
    )