balancer

Can be used in

serviceProxy, soapProxy, transport, beans

Syntax

				<balancer name="string" sessionTimeout="int">
					<xmlSessionIdExtractor >?
					<jSessionIdExtractor >?
					<nodes>?
					<byThreadStrategy >?
					<roundRobinStrategy >?			
				</balancer>

Listing 1: balancer Syntax

Sample

				<serviceProxy port="2000">
					<balancer>
						<xmlSessionIdExtractor namespace="http://chat.predic8.com/"
							localName="session" />
						<nodes>
							<node host="node1.predic8.com" port="8080" />
							<node host="node2.predic8.com" port="8090" />
							<node host="node3.predic8.com" port="8100" />
						</nodes>
						<byThreadStrategy maxNumberOfThreadsPerEndpoint="10"
							retryTimeOnBusy="1000" />			
					</balancer>
				</serviceProxy>

Listing 2: balancer Example

Attributes

Name	Mandatory	Default	Description	Example
name	no	Default	Uniquely identifies this Load Balancer, if there is more than one. Used in the web administration interface and lbclient to manage nodes.	balancer1
sessionTimeout	no	3600000	Time in milliseconds after which sessions time out. (If a session extractor is used.) Default is 1 hour, 0 means never.	600000 (10min)

Child Elements

Name	Cardinality	Description
byThreadStrategy	0..1	Sets the balancer strategy to thread based.
clusters	0..1	Specifies a list of clusters.
jSessionIdExtractor	0..1	Extracts JSESSIONIDs.
roundRobinStrategy	0..1	Sets the balancer strategy to round robin the nodes.
xmlSessionIdExtractor	0..1	Specifies local name and namespace of session element.