[CONF] Apache Qpid: Using Broker Federation (page edited)

[confluence]

Page Edited : qpid : Using Broker Federation Using Broker Federation has been edited by Ted Ross (Nov 05, 2008). (View changes) Content: Introduction Please note: Whereas broker federation was introduced in the M3 milestone release, the discussion in this document is based on the richer capabilities of federation in the M4 release. This document presents broker federation for the administrative user. For design and developer information, please see Federation Design Note. What Is Broker Federation? The Qpid C++ messaging broker supports broker federation, a mechanism by which large messaging networks can be built using multiple brokers. Some scenarios in which federation is useful: Connecting disparate locations across a wide area network. In this case full connectivity across the enterprise can be achieved while keeping local message traffic isolated to a single location. Departmental brokers that have a policy which controls the flow of inter-departmental message traffic. Scaling of capacity for expensive broker operations. High-function exchanges like the XML exchange can be replicated to scale performance. Some applications benefit from having a broker co-resident with the client. This is particularly true if the client produces data that must be delivered reliably but connectivity to the consumer(s) is non-reliable. In this case, a co-resident broker provides queueing and durablilty not available in the client alone. The qpid-route Utility The qpid-route command line utility is provided with the Qpid broker. This utility is used to configure federated networks of brokers and to view the status and topology of networks. In the following sections, federation concepts will be introduced and illustrated using qpid-route. Links and Routes Federation occurs when a link is established between two brokers and one or more routes are created within that link. A link is a transport level connection (tcp, rdma, ssl, etc.) initiated by one broker and accepted by another. The initiating broker assumes the role of client with regard to the connection. The accepting broker annotates the connection as being for federation but otherwise treats it as a normal client connection. Dynamic Routing Static Routing Exchange-to-Exchanges Routes Queue-to-Exchange Routes Pull vs. Push Routes qpid-route Summary and Options Example Scenarios Using QPID to bridge disjoint IP networks Full mesh topology Multi-tiered topology +-----+ | 5 | +-----+ / \ +-----+ +-----+ | 2 | | 6 | +-----+ +-----+ / | \ | \ +-----+ +-----+ +-----+ +-----+ +-----+ | 1 | | 3 | | 4 | | 7 | | 8 | +-----+ +-----+ +-----+ +-----+ +-----+ This topology can be configured using the following script. ## ## Define URLs for the brokers ## broker1=localhost:10001 broker2=localhost:10002 broker3=localhost:10003 broker4=localhost:10004 broker5=localhost:10005 broker6=localhost:10006 broker7=localhost:10007 broker8=localhost:10008 ## ## Create Topic Exchanges ## qpid-config -a $broker1 add exchange topic fed.topic qpid-config -a $broker2 add exchange topic fed.topic qpid-config -a $broker3 add exchange topic fed.topic qpid-config -a $broker4 add exchange topic fed.topic qpid-config -a $broker5 add exchange topic fed.topic qpid-config -a $broker6 add exchange topic fed.topic qpid-config -a $broker7 add exchange topic fed.topic qpid-config -a $broker8 add exchange topic fed.topic ## ## Create Topic Routes ## qpid-route dynamic add $broker1 $broker2 fed.topic qpid-route dynamic add $broker2 $broker1 fed.topic qpid-route dynamic add $broker3 $broker2 fed.topic qpid-route dynamic add $broker2 $broker3 fed.topic qpid-route dynamic add $broker4 $broker2 fed.topic qpid-route dynamic add $broker2 $broker4 fed.topic qpid-route dynamic add $broker2 $broker5 fed.topic qpid-route dynamic add $broker5 $broker2 fed.topic qpid-route dynamic add $broker5 $broker6 fed.topic qpid-route dynamic add $broker6 $broker5 fed.topic qpid-route dynamic add $broker6 $broker7 fed.topic qpid-route dynamic add $broker7 $broker6 fed.topic qpid-route dynamic add $broker6 $broker8 fed.topic qpid-route dynamic add $broker8 $broker6 fed.topic Load-sharing across brokers

Powered by Atlassian Confluence (Version: 2.2.9 Build:#527 Sep 07, 2006) - Bug/feature request

Unsubscribe or edit your notifications preferences