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Tag: amqp

RabbitMQ PRECONDITION_FAILED – unknown delivery tag

We have a PHP app that forwards messages from RabbitMQ to connected devices down a WebSocket connection (PHP AMQP pecl extension v1.7.1 & RabbitMQ 3.6.6). Messages are consumed from an array of queues (1 per websocket connection), and are acknowledged by the consumer when we receive confirmation over the …