jakarta-ee - 谷歌缓存可以在集群环境中工作吗

Question

我正在使用谷歌缓存在单例 ejb 中缓存数据。并且缓存的资源被多个 ejb 使用。但是现在不确定如果部署在可以存在多个 JVM 的多节点集群环境中，同一个应用程序是否可以工作。

请指教!

Answer 1

不，Guava Cache 不适合您的用例，因为它将数据存储在内存中。见 this wiki page :

Generally, the Guava caching utilities are applicable whenever:

• You are willing to spend some memory to improve speed.
• You expect that keys will sometimes get queried more than once.
• Your cache will not need to store more data than what would fit in RAM. (Guava caches are local to a single run of your application. They do not store data in files, or on outside servers. If this does not fit your needs, consider a tool like Memcached.)

我可以推荐你使用 Ehacache ，它非常强大且可配置。