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Qman is a tool that dynamically reads the QMF Schema information and creates JMX objects that consumed by any JMX console or application server to manage Qpid. QMan is also adding support for WS-DM management of QMF resources.
Clustering, Federation and Disaster Recovery
Does Qpid provide Fault Tolerance for the cluster?
The C++ broker has plug-ins for Active-Active clustering which keep all the nodes of the cluster in sync. This means that any action that is performed on one of the brokers on the cluster is performed on all of them at the same time. New nodes can be added to the cluster at any time, and removed at any time with no consequences, exept for the extra multi-cast load created for the sync on joining.
What does the cluster guarantee?
Everything! All configuration, all messages and all actions are replicated in a cluster. This means that two consumers can be connected to different nodes in the cluster and they will behave EXACTLY the same as if they where on a single broker.
Do clients get notified members joining or leaving the cluster?
yes, All clients are updated with the addresses of node add/removed as supported by the AMQP 0-10 specification. This means that the client can dynamically track the nodes in the cluster and reconnect as required.
Can I specify more than one host to connect initially to the cluster to avoid single point of failure?
yes, the AMQP address is multi-honed and more than one IP address can be specified at the initial connection. The client will then iterate through the host until it makes a successful connection. This feature can also be used in none clustered brokers.
How does Clustering work?
When C++ brokers are configured into a cluster, the nodes communicate with each other over a mulitcast protocol called AIS, an open Telco multicast protocol that provides all the quorum and group services.
Every action that is performed on any node of the cluster is then sequenced via totem and then performed on each node of the cluster in sync. As the cluster backbone is multicast, a separate network can be used for cluster communication and there is little impact adding additional nodes to the cluster with-in reason.
What is Federation?
Federation provides the ability to create networks of brokers that communicate with each other in all types of typologies. This allows a producer to publish messages to one broker and someone to consume the messages from another broke somewhere on the broker federated network.
Disater recover features are in process, Q&A will be added once they are complete.
How To
How to use RDMA with Qpid
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