This causes degraded performance as increasing amounts of time and bandwidth are absorbed in maintaining consistency of session backups across the cluster rather than processing user requests.
这会造成性能的下降：越来越多的时间和带宽花在了在集群中维护会话备份的一致性，而不是用来处理用户请求。
The main rationale for having the session concept is likely to prevent the failure of a partial configuration update from affecting the consistency and integrity of the whole configuration.
出现会话这个概念的主要原因很可能是为了防止部分配置更新的失败影响整个配置的一致性和完整性。
This logic in the session bean will force the clients to always do the right thing, ensuring consistency in the application and preventing code duplication at the client side.
会话bean中的这个逻辑将强制客户机一直做正确的事情，确保应用程序中的一致性并防止客户端的代码重复。
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