memcached failover

[Niva Agmon]

We setup our two Shib nodes with memcached per the Storage Configuration<https://wiki.shibboleth.net/confluence/display/IDP30/StorageConfiguration#StorageConfiguration-MemcachedStorageService> article on the wiki but we still have to re-login to the idp when one of the nodes is down. Is this the expected behavior?

Idp.properties:
idp.session.StorageService = shibboleth.MemcachedStorageService
...

global.xml:
<!-- MemcachedStorage Service configuration -->
  <bean id="shibboleth.MemcachedStorageService"
          class="org.opensaml.storage.impl.memcached.MemcachedStorageService"
          c:timeout="2">
        <constructor-arg name="client">
            <bean class="net.spy.memcached.spring.MemcachedClientFactoryBean"
                  p:servers="xxx-1.temple.edu:11211, xxx-2.temple.edu:11211"
                  p:protocol="BINARY"
                  p:locatorType="CONSISTENT"
                  p:failureMode="Redistribute"
                  p:daemon="True">
                <property name="hashAlg">
                    <util:constant static-field="net.spy.memcached.DefaultHashAlgorithm.FNV1_64_HASH" />
                </property>
                <property name="transcoder">
                    <!-- DO NOT MODIFY THIS PROPERTY -->
                    <bean class="org.opensaml.storage.impl.memcached.StorageRecordTranscoder" />
                </property>
            </bean>
        </constructor-arg>
    </bean>

Thanks,
Niva

Niva Agmon
Temple University
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