Sticky

Sticky Load Balancer. Sticky load balancing uses an Expression to calculate a correlation key to perform the sticky load balancing.

Options

The Sticky EIP supports 1 options which are listed below:

Name Description Default Type

correlationExpression

Required The correlation expression to use to calculate the correlation key

ExpressionSubElementDefinition

Examples

In this case we are using the header test as correlation expression:

from("direct:start")
    .loadBalance()
    .sticky(header("test"))
    .to("seda:x", "seda:y", "seda:z");

In XML you’ll have a route like this

<from uri="direct:start"/>
    <loadBalance>
       <sticky>
           <correlationExpression>
               <header>test</header>
           </correlationExpression>
       </sticky>
       <to uri="seda:x"/>
       <to uri="seda:y"/>
       <to uri="seda:z"/>
    </loadBalance>
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