AMQP keep alive (AMQPKA)

Use the AMQPKA attribute to specify a keep alive time for the AMQP client connection. If the AMQP client has not sent any frames within the keep alive interval, then the connection is closed.

The AMQPKA attribute determines the value of the idle-timeout attribute sent from IBM MQ to an AMQP client. The attribute is a period of time in milliseconds.

If AMQPKA is set to a value > 0, then IBM MQ flows half that value as the idle-timeout attribute. For example, a value of 10000 causes the queue manager to send an idle-timeout value of 5000. The client should ensure that data is sent to IBM MQ at least every 10000 milliseconds. If data is not received by IBM MQ in that time, IBM MQ assumes that the client has lost its connection and forcibly closes the connection with an amqp:resource-limit-exceeded error condition.

A value of AUTO or 0 means the IBM MQ does not flow an idle-timeout attribute to the AMQP client.

An AMQP client can still flow an idle-timeout value of its own. If it does, IBM MQ flows data (or an empty AMQP frame) at least that frequently to inform the client that it is available.