The suggested solution can be used with any servlet (not just Spring based) which also makes it suitable if you need to scale out legacy web apps. This blog will show how you can use Redis together with Spring Session to scale out sessions. Both these solutions work, but with Spring Session Spring has created another option. Alternatively, load balancers can be configured to use sticky sessions. If your application fails to start, registered FailureAnalyzers get a chance to provide a dedicated error message and a concrete action to fix the problem. To overcome this, server vendors have implemented various kinds of session replication between their servers. Things become trickier when scaling out because each request needs to be associated with its corresponding session that may reside on another server. wilkinsona modified the milestones: 2.2.x, 2.2.11 on Oct 19, 2020. wilkinsona closed this as completed in 11bc62f on Oct 19, 2020. not in effect when using Jetty starter without jakarta.annotation and javax.annotation 23750. When deployed on a single server with little load, session management is pretty straight forward as long as you use a reasonable expiration timeout and do not store to much data in the session. wilkinsona mentioned this issue on Oct 19, 2020. However, stateful session based applications continue to play an important role, for example when issuing CSRF tokens for improved security. Stateless architecture has become increasingly popular during resent years and for good reasons.
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