<div dir="ltr">Further to a previous post for session problems in my application, I believe some of my issues relate to the DistributableSessions that are being used by Wildfly.  However, in my configuration file, I have my web cache defined as a local cache:<div><br></div><div><br><div><br></div><div><div>        &lt;subsystem xmlns=&quot;urn:jboss:domain:infinispan:4.0&quot;&gt;</div><div>            &lt;cache-container name=&quot;server&quot; aliases=&quot;singleton cluster&quot; default-cache=&quot;default&quot; module=&quot;org.wildfly.clustering.server&quot;&gt;</div><div>                &lt;transport lock-timeout=&quot;60000&quot;/&gt;</div><div>                &lt;replicated-cache name=&quot;default&quot; mode=&quot;SYNC&quot;&gt;</div><div>                    &lt;transaction mode=&quot;BATCH&quot;/&gt;</div><div>                &lt;/replicated-cache&gt;</div><div>            &lt;/cache-container&gt;</div><div>            &lt;cache-container name=&quot;web&quot; default-cache=&quot;passivation&quot; module=&quot;org.wildfly.clustering.web.infinispan&quot;&gt;</div><div>                &lt;local-cache name=&quot;passivation&quot;&gt;</div><div>                    &lt;locking isolation=&quot;REPEATABLE_READ&quot;/&gt;</div><div>                    &lt;transaction mode=&quot;BATCH&quot;/&gt;</div><div>                    &lt;file-store passivation=&quot;true&quot; purge=&quot;false&quot;/&gt;</div><div>                &lt;/local-cache&gt;</div><div>                &lt;local-cache name=&quot;persistent&quot;&gt;</div><div>                    &lt;locking isolation=&quot;REPEATABLE_READ&quot;/&gt;</div><div>                    &lt;transaction mode=&quot;BATCH&quot;/&gt;</div><div>                    &lt;file-store passivation=&quot;false&quot; purge=&quot;false&quot;/&gt;</div><div>                &lt;/local-cache&gt;</div><div>            &lt;/cache-container&gt;</div></div></div><div>...</div><div>...</div><div><br></div><br>I see that undertow comes with an InMemorySessionManager, but not entirely sure how to enable it.  Do I have to go through the effort of creating my own ServletExtension and configuring it in the META-INF/services/io.undertow.servlet.ServletExtension or is there an out-of-the-box way of enable functionality that already exists via the config file?<br><br>Thanks,<br><br>Eric</div>