Leveraging the WebSphere dynacache infrastructure.
利用WebSpheredynacache基础设施。
To help with this problem, dynacache provides a feature called "disk offload".
为了帮助解决这个问题，dynacache提供了一个“磁盘卸载”特性。
For example, data in DynaCache and the security subject cache are transmitted using DCS.
例如，使用DCS传输dynacache和安全性主题缓存中的数据。
WebSphere Commerce uses dynacache to cache whole pages (JSPs), page fragments, and commands.
WebSphereCommerce使用dynacache来缓存整个页面（JSP）、页面碎片和命令。
There are different flavors of the dynacache infrastructure within WebSphere Application Server.
在WebSphereApplicationServer内有不同特点的dynacache基础设施。
Typically, the dynacache-based Application Server topology has to keep the many dynacache instances in synch.
通常，基于dynacache的ApplicationServer拓扑同步保留许多dynacache实例。
Figure 2 shows the conceptual difference between the dynacache-based and eXtreme Scale-based caching topology.
图2显示了基于dynacache和基于eXtreme Scale缓存拓扑概念上的差异。
We showed how to use the WebSphere Application Server dynacache infrastructure in order to cache data in portlets.
我们展示了如何使用WebSphereApplicationServerdynacache基础设施在Portlet中缓存数据。
Each instance of dynacache contains the same, although not necessarily identical (more on this later), cache entries.
每个dynacache实例含有相同的—但并非一定要一样的(稍后详述)—缓存条目。
Example 3 builds upon Example 2 and also leverages dynacache, a Webphere extension used for caching response content.
示例3构建在示例2 基础之上，并且还利用了动态缓存，即用于缓存响应内容的Webphere扩展。
Thus, the dynacache service is not aware that the initial link is static or dynamic, and it simply serves the request.
因此，dynacache服务并不知道初始化链接是静态的还是动态的，该服务只是处理请求。
Static URLs are converted using the URL_Mapper_File to the dynamic URLs before getting processed by the dynacache service.
使用URL_Mapper_File将静态url转换为动态url之后，才由dynacache服务对其进行处理。
Next, let's look at an example that uses both key generation mechanisms and stores the data using the dynacache infrastructure.
接下来，我们看一个示例，它使用了这两种键生成机制，并且通过dynacache基础设施存储数据。
When the cache gets too large to fit into the JVM heap, dynacache disk offload writes the contents of the cache out to a file on disk.
当缓存大于jvm堆时，dynacache磁盘卸载会将缓存内容写到一个磁盘文件中。
WebSphere Application Server dynacache with disk offload can provide WebSphere Commerce sites with excellent performance characteristics.
含有磁盘负载的WebSphereApplicationServerdynacache能够给 WebSphereCommerce网站提供卓越的性能特征。
Dynamic cache or dynacache as it is often called, provides the capability to cache the output of different objects within your application.
动态缓存或通常所称的dynacache能够缓存您的应用程序中不同对象的输出。
WebSphere Application server's DynaCache provides a general in-memory caching service for objects and page fragments generated by the server.
WebSphereApplicationServer的DynaCache为服务器所生成的对象和分页分段提供了一个通用的内存缓存服务。
Those services are DynaCache, memory to memory session replication, core groups, Web services caching, and stateful session bean persistence.
这些服务是DynaCache、内存到内存会话复制、核心组、Web服务缓存和有状态会话Bean持久性。
Those services are DynaCache, memory-to-memory session replication, core groups, Web services caching, and stateful session bean persistence.
这些服务是DynaCache、内存到内存会话复制、核心组、Web 服务缓存和有状态会话bean持久化。
Now that you know how to cache data using the dynacache infrastructure, let's look at how you can generate the correct cache key in a portlet.
既然您已经了解了如何使用dynacache基础设施缓存数据，现在让我们看一下如何在Portlet中生成正确的缓存键。
The example bookmark portlet shows how to use the different cache key scopes, and how to store the data with the WebSphere dynacache infrastructure.
示例书签Portlet展示了如何使用不同的缓存键范围，以及如何使用WebSpheredynacache基础设施存储数据。
The WebSphere Application Server dynamic cache service (often referred to as DynaCache) is an excellent example of using a side cache to improve performance.
WebSphereApplicationServer动态缓存服务(常常称为dynacache)是一个使用sidecache提高性能的绝佳示例。
This tutorial shows you a simple and effective caching technique, based on a mature product feature, DynaCache, that will help you meet application performance requirements.
本教程将向您展示一种简单有效的缓存技术DynaCache，它基于一个成熟的产品特性，能够帮助您满足应用程序性能需要。
No, I didn't forgotten about these, but unfortunately, neither DynaCache nor Distributed Map provides an alternative to a 64-bit JVM when you need a large application server heap.
我并没有忘记这两项，不过对于需要大型应用程序服务器堆的情况，DynaCache和DistributedMap都没有提供64位JVM的替代方案。
Try modifying WebSphere Application Server configuration parameters in one application at a time (such as HTTP cache, dynacache, and so on) to see how the changes affect the problem.
尝试一次在一个应用程序中修改WebSphere ApplicationServer配置参数（例如HTTP缓存、动态缓存等等），了解参数更改如何影响该问题。
Dynacache is an in-process cache. Figure 1 illustrates that each member of the Application Server cluster contains its own instance of dynacache, including copies of each cache entry.
dynacache是一个进程内缓存，图1说明了每个ApplicationServer集群成员包含其自己的dynacache实例，包括每个缓存项的副本。
The key difference between a dynacache-based topology and the eXtreme Scale-based topology is that the latter has only a single cache instance that is populated by multiple application server JVMs.
基于dynacache的拓扑和基于eXtreme Scale的拓扑的主要区别是，后者只有一个缓存实例，其中含有多个应用程序服务器J VM。
Overall in our cold start tests, we observed that with eXtreme Scale, the WebSphere Commerce site tends to reach steady state in about 60% of the time required for dynacache - almost twice as fast!
总的来说，在我们的冷启动测试中，我们注意到，使用eXtremeScale时，WebSphereCommerce网站达到稳定状态所需的时间是使用dynacache时所需时间的大约60%—几乎快两倍。
To understand the remote cache rules, dynacache is notified by RRD to send a response header that is a representation of the remote application’s cachespec.xml file, the caching configuration file.
为了解远程缓存规则，RRD将通知动态缓存发送响应标头，它是远程应用程序的cachespec.xml文件（即缓存配置文件）的表示形式。
To understand the remote cache rules, dynacache is notified by RRD to send a response header that is a representation of the remote application’s cachespec.xml file, the caching configuration file.
为了解远程缓存规则，RRD将通知动态缓存发送响应标头，它是远程应用程序的cachespec.xml文件（即缓存配置文件）的表示形式。
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