[OpenAFS] callbacks and connection

[Jeffrey Altman]

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Soledad Fenoglio wrote:
> Hi people!!
>  
> I need to know what happen with callbacks when connection between client
> and server shutdown. They will be staying in the cache memory or they won't?
>  
> thanks
>  
> sole

callbacks are registered by the client's cache manager with the file
server for a finite period of time not to exceed two hours.  the actual
time is dependent upon load.

if the server cannot contact the cache manager when a callback must be
issued to invalidate the contents of the cache, the file server will
mark the client as out of date and communicate the state change the next
time the client contacts the file server.

in the meantime, the client will think the data in the cache is valid
until the callback expires.

Jeffrey Altman
Secure Endpoints Inc.


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