How to increase heartbeat timeout for cinder's connections to AMQP

Solution In Progress - Updated -

Issue

Due to a performance bottleneck, cinder connections to rabbitmq time out with the following message

2016-10-19 17:41:39.899 13694 ERROR oslo.messaging._drivers.impl_rabbit [-] AMQP server on 10.0.0.1:5672 is unreachable: Too many heartbeats missed. Trying again in 1 seconds.

How can one increase the timeouts?

Environment

Red Hat OpenStack Platform 8.0

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