因此，服务器上的每次缓存缺页都会触发一个RPC回调，它会获取整个完整的用户证书(STKT +PAC)。
Thus, every cache miss on the server triggered a callback RPC that had to fetch the user's credential (STKT + PAC) in its entirety.
这个回调也会与PLAM在客户机的运行库中进行交互，从而获取PAC标识符；这与从用户的信任证书缓存中获取认证服务令牌不同。
This callback, apart from retrieving the authentication service ticket from the user's credential cache, also interacts with PLAM in the client's runtime to fetch the PAC identifier.
如果用户更改了缓存在其他地方的复制文件，原始文件服务器将会激活回调，并提醒原始缓存版本它需要更新。
If a user adds changes to a replicated file cached somewhere else, the original file server will activate the callback and remind the original cached version that it needs to be updated.
文件服务器进程把文件发送到客户机缓存内并随其附带一个回调，以便系统可以处理发生在其他地方的任何更改。
The file server process sends the file to the client cache with a callback attached to it so that the system can deal with any changes happening somewhere else.
变更列表还涉及到其他一些主题，如统一的组件渲染、缓存和RequestCycle回调。
The list of changes covers several other topics such as unified component rendering, caching, and RequestCycle hookups.
需要注意的是，如果请求需要进行回调，那么这些控件的值是不能够在viewstate中被缓存的。
It is important to note that if the request is a postback, the values of the controls have not yet been restored from view state.
需要注意的是，如果请求需要进行回调，那么这些控件的值是不能够在viewstate中被缓存的。
It is important to note that if the request is a postback, the values of the controls have not yet been restored from view state.
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