[rabbitmq-discuss] RMQ Java Client - ChannelN.waitForConfirm randomly throwing exceptions

Emanuele G e.gherardini at hotmail.com
Wed Mar 28 16:08:07 BST 2012

Emanuele G wrote:
> Hello,
> I am using the latest RabbitMQ java client, but while doing some perf.
> test I randomly get this exception:
> Caused by: com.rabbitmq.client.ShutdownSignalException: connection error;
> reason: {#method<connection.close>(reply-code=503,
> reply-text=COMMAND_INVALID - second 'channel.open' seen, class-id=20,
> method-id=10), null, ""}
> 	at com.rabbitmq.client.impl.ChannelN.waitForConfirms(ChannelN.java:182)
> ~[amqp-client-2.8.1.jar:na]
> 	at com.rabbitmq.client.impl.ChannelN.waitForConfirms(ChannelN.java:170)
> ~[amqp-client-2.8.1.jar:na]
> Why is this happening and how can I workaround it ?

I want to add that I am getting the same error this user reported in this

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