throttle

The throttle feature can slow down traffic to thwart denial of service attacks.

Can be used in

proxy, serviceProxy, soapProxy, transport

Syntax

				<throttle delay="long"
							 maxThreads="int"
							 busyDelay="long"
				/>

Listing 1: throttle Syntax

Sample

This sample delays every request for a second and limits the number of concurrent clients to five. After 3 seconds of waiting a client gets a timeout if there are no threads left to serve its request.

				<serviceProxy port="2000">
					<throttle delay="1000" maxThreads="5" busyDelay="3000"/>
					<target host="www.predic8.de" />
				</serviceProxy>

Listing 2: throttle example

Attributes

Name	Mandatory	Description	Example
delay	no	If not 0, delays requests by specified number of milliseconds.	1000
maxThreads	no	If not 0, request are aborted if the thread count reaches this limit.	5
busyDelay	no	If the maxThreads limit is reached, the interceptor waits the specified number in milliseconds before the request is aborted.	3000