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throttle

Description

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

Can be used in

spring:beans, if, proxy, registration, request, response, serviceProxy, soapProxy, stompProxy, swaggerProxy and 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 Required Default Description Example
busyDelay false 0 If a newly incoming request exceeds maxThreads, the interceptor waits the specified number in milliseconds and retries once before aborting the request. 3000
delay false 0 If non-zero, delays requests by specified number of milliseconds. 1000
maxThreads false 0 If non-zero, newly incoming request are aborted if the number of running requests has reached this limit. 5

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