Red Hat Summit Red Hat SummitSupportConsoleDevelopersStart a trialContact

20.3. Configuring HA with Static Failover

Overview
Copy link

By default, HA with static failover uses a sequential strategy when selecting a replica service if the original service with which a client is communicating becomes unavailable, or fails. The sequential strategy selects a replica service in the same sequential order every time it is used. Selection is determined by Apache CXF’s internal service model and results in a deterministic failover pattern.

Configuring a random strategy
Copy link

You can configure HA with static failover to use a random strategy instead of the sequential strategy when selecting a replica. The random strategy selects a random replica service each time a service becomes unavailable, or fails. The choice of failover target from the surviving members in a cluster is entirely random.
To configure the random strategy, add the configuration shown in Example 20.3, “Configuring a Random Strategy for Static Failover” to your client configuration file.

Example 20.3. Configuring a Random Strategy for Static Failover

<beans ...>
1    <bean id="Random" class="org.apache.cxf.clustering.RandomStrategy"/>
    
    <jaxws:client name="{http://apache.org/hello_world_soap_http}Replica3"
                  createdFromAPI="true">
        <jaxws:features>
            <clustering:failover>
2                <clustering:strategy>
                    <ref bean="Random"/>
                </clustering:strategy>
            </clustering:failover>
        </jaxws:features>
    </jaxws:client>
</beans>
The configuration shown in Example 20.3, “Configuring a Random Strategy for Static Failover” can be explained as follows:
1
Defines a Random bean and implementation class that implements the random strategy.
2
Specifies that the random strategy is used when selecting a replica.
Red Hat logoGithubredditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust. Explore our recent updates.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

Theme

© 2026 Red HatBack to top