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Chapter 1. Introduction
Red Hat AMQ Broker 7.1 is available as a containerized image that is designed for use with OpenShift Container Platform 3.9. Developers can quickly deploy an AMQ message broker in a hybrid cloud environment.
AMQ Broker, based on Apache ActiveMQ Artemis, is a full-featured, message-oriented middleware broker. It offers specialized queueing behaviors, message persistence, and manageability. Core messaging is provided by Apache ActiveMQ with support for different messaging styles such as publish-subscribe, point-to-point, and store-and-forward. It supports multiple protocols and client languages, so you can use many of your application assets. Lastly, AMQ Broker is supported to work with Red Hat JBoss Enterprise Application Platform.
1.1. Technology Preview release limitations for AMQ Broker on OpenShift Container Platform Copiar enlaceEnlace copiado en el portapapeles!
The Technology Preview release of AMQ Broker on OpenShift Container Platform has the following limitations:
- Scaling down and message migration is not available.
- High Availability (HA): Shared store is supported only if the containers have access to a distributed file system.
External clients do not support HA.
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Because external Core Protocol JMS clients do not support HA or any type of failover, the connection factories must be configured with
useTopologyForLoadBalancing=false. - AMQP clients do not support failover lists.
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Because external Core Protocol JMS clients do not support HA or any type of failover, the connection factories must be configured with
- The AMQ Core Protocol JMS Client cannot be configured to use an haproxy with TLS passthrough, which requires SNI. This issue occurs because the SNI information is not passed by the Core Client, even when sniHost is set correctly on the URI. To work around this issue, use another method to enable external client access to AMQ Broker on OpenShift Container Platform, such as NodePort.
Scaling up and persistent storage partitioning is available for the Technology Preview release but is not currently documented.
1.2. Version compatibility and support Copiar enlaceEnlace copiado en el portapapeles!
For details about OpenShift Container Platform 3.9 image version compatibility, see the OpenShift and Atomic Platform Tested Integrations page.