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Questions tagged [session-replication]

Session replication is a mechanism used to replicate the data stored in a session across different instances.

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Replication exception with WebSphere 7 sessions

I have a JSF 2 + Spring 3 application that's currently being deployed to a clustered WebSphere 7 environment. The servers are configured for memory-to-memory replication for session handling. While running tests on the application, a common…
holic87
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Tomcat loadbalancing serialize exception PersistenceExceptionTranslationInterceptor : lazy initialization exception

I have to put two tomcat servers (tcat01 and tcat02) in a loadbalancing architecture. I'm using tomcat 6.x and I edited the conf/server.xml like this on tomcat tcat01 :
Nico
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Wildfly 26.1 Cluster 'Initial state transfer timed out for cache'

I am trying to configure wildfly 26.1 with High Availability as mentioned here with 2 servers, server A and server B and a Haproxy in front of them. I'm using the default configuration for standalone-ha.xml and everything is working fine. When the 2…
tsotzolas
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tomcat cluster: member changes of an existing attribute object not replicated

Tomcat cluster in kubernetes: member changes of session existing object are not replicated. Server.xml: …
eastwater
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java serialization: how to show object references

For the following stacktrace of tomcat session replication, is there a way to show object reference graph for serialization? i.e., Object A in session -> Object B -> .... -> ClassFoo Object In other words, how to show the object type to write for…
eastwater
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Hazelcast tomcat9 on Kubernetes: java.lang.IllegalStateException: Unknown protocol

Tomcat session replication with Hazelcast: https://github.com/hazelcast/hazelcast-tomcat-sessionmanager Downloaded the hazelcast-5.3.0.zip, it has hazelcast-5.3.0.jar (16M), but it does not have hazelcast-all-5.3.0.jar. Following the instruction for…
eastwater
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hazelcast for tomcat session replication: sticky

Hazelcast tomcat session manager: https://github.com/hazelcast/hazelcast-tomcat-sessionmanager Sticky Sessions (default) Sticky Sessions are used to improve the performance since the sessions do not move around the cluster. Requests always go to…
eastwater
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Kubernetes tomcat cluster: no-active members and how to turn on debug logging?

k8s StatefulSet: apiVersion: v1 kind: Service metadata: name: my-web labels: app: my-web spec: ports: - name: http port: 8080 targetPort: 8080 selector: app: my-web type: ClusterIP --- apiVersion: apps/v1 kind:…
eastwater
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How do I implement Serializable? For storing my data in Session

Hi I have been trying to do session replication between my 2 tomcat clusters...and also I am maintain sticky session...I am currently having a problem that after adding tag in web.xml and running my application it gives an error like…
Ganapathy R
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Does spring-session-data-redis use session cookie

I was going to do this test myself but that requires Redis and I don;t have one for all I want to find out is if it uses/sets JSESIONID cookie.
bhantol
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OpenAM (Forgerock) - "ds replication" Session replication problem

I have two WEB nodes/servers where two “OpenAM” instances run under “Apache Tomcat” Web Server. I would like to apply the “Session Replication”, on these two nodes, using the OpenAM’s standard "ds replication" commands : dsreplication.bat enable…
C75
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Tomcat clustering mechanism and session replication is not working on tomcat 8.5.78

I am working on a project where I need to replicate sessions on two different tomcats. I configured Nginx as a load balancer. Configured two tomcats to make two different nodes. My requirement: Suppose two nodes are running and the session of node…
Avijit Barua
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Cannot invoke "com.vaadin.flow.server.VaadinService.getContext()", the return value of "com.vaadin.flow.server.VaadinSession.getService()" is null

I'm trying to setup a Vaadin 22 project using spring, spring-boot and hazelcast for session replication. If I remove everything related to Hazelcast, the execution runs smoothly and I can login (through Keycloak) to my UI. As soon as I add the…
Luca Trecarichi
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tomcat 8.5 clustering issue on 2 ubuntu vms - skipping state transfer. No members active in cluster group

I am trying to create a tomcat cluster with 2 ubuntu machines. Tomcat starts successfully on both vms. However, the war file is not copied on to node2. Error says: skipping state transfer. No members active in cluster group. Please let me know if…
Ravi
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Spring Boot | Session Replication | Mode COOKIE

I have a spring boot application up and running. We run it using external standalone tomcat behind LB. Tomcat version - 9 Springboot - 2.3.4.RELEASE I have tried with below approach but none works. web.xml …
Ankur Singhal
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