Question

我正在尝试使用声明列表为RabbitMQ配置Shovel插件。我已经将远程交换配置为在创建时进行备用交换。

我的问题是我无法获取铲子的配置文件以包含此参数，因此RabbitMQ在启动时崩溃。

这就是我的配置：

[
    {mnesia, [{dump_log_write_threshold, 100}]},
    {rabbit, [{vm_memory_high_watermark, 0.4}]},
    {rabbitmq_shovel,
        [{shovels,
            [{call_stats_shovel,
                [{sources, [{broker, "amqp://guest:guest@localhost:5672/test"},
                    {declarations,
                        [{'queue.declare', [{queue, <<"incoming">>}, durable]},
                        {'exchange.declare',[{exchange, <<"my-exchange-topic">>},{type, <<"topic">>},durable]},
                        {'queue.bind',[{exchange, <<"my-exchange-topic">>},{queue, <<"incoming">>}]}
                ]}]},
                {destinations, [{broker, "amqp://guest:guest@172.16.3.162:5672/blah"},
                    {declarations,
                    [
                        {'queue.declare',[{queue, <<"billing">>},durable]},
                        {'exchange.declare',[{exchange, <<"my-exchange-topic">>},{type, <<"topic">>},{alternate_exchange, <<"alt">>}, durable]},
                        {'queue.bind',[{exchange, <<"my-exchange-topic">>},{queue, <<"billing">>},{routing_key, <<"physical">>}]}
                    ]}
                ]},
                {queue, <<"incoming">>},
                {ack_mode, no_ack},
                {publish_properties, [{delivery_mode, 2}]},
                {reconnect_delay, 5}
                ]}
            ]
        }]
    }
].

问题出在目标交换机上，名为my-exchange-topic。如果我取出声明部分，那么配置文件可以正常工作。

这是错误：

= INFO REPORT ==== 31-Jul-2012 :: 12：15：25 === 应用：rabbitmq_shovel 退出：{{invalid_shovel_configuration，call_stats_shovel， {invalid_parameter_value，目的地， {unknown_fields， 'exchange.declare'， [alternate_exchange]}}}， {rabbit_shovel，启动，[正常，[]]}} 类型：永久

如果我将alternate_exchange部分从声明中删除，我会在RabbitMQ Web管理中遇到此错误：

{{关机， {server_initiated_close，406，＆lt;＆lt;“PRECONDITION_FAILED - 不等效arg'alternate-exchange'for交换'my-exchange-topic'在vhost'blah'中：收到没有但是当前是'longstr'“＆gt;＆gt;}}类型的'alt'值， {gen_server，打电话，并[d 0.473.0＆gt;中 {呼叫， { 'exchange.declare'，0，＆LT;＆LT; “我的交换话题” ＆GT;＆GT;，＆LT;＆LT; “主题” ＆GT;＆GT;，假真，假FALSE，FALSE，[]}，无，＆LT; 0.444.0＆GT;}，无穷]}}

Answer 1

对于任何想要如何配置需要其他参数的交换和队列的人，您可以这样做：

{'exchange.declare',[{exchange, <<"my-exchange-topic">>},{type, <<"topic">>}, durable, {arguments, [{<<"alternate-exchange">>, longstr, <<"alternate-exchange">>}]}  ]},

你可以用队列做类似的事情：

{'queue.declare',[{queue, <<"my-queue">>},durable, {arguments, [{<<"x-dead-letter-exchange">>, longstr, <<"dead-letter-queue">>}]}]}

Answer 2

为了澄清上面的评论，如果是exchange2exchange铲，配置将是：

{'exchange.declare',[{exchange, <<"my-exchange-topic">>},{type, <<"topic">>}, durable, {arguments, [{<<"alternate-exchange">>, longstr, <<"name-of-your-alternate-exchange">>}]}  ]},

RabbitMQ Shovel配置Alternate-Exchange

2 个答案: