Caching so that the website is available for the user??

HI All,
I am developing a web site using jsf ( hibernate - mysql - spring ) .. the website is working fine
but the problem is in case there is some disconnection between the client and the website server ( which holds the website and the database -- by the way currently the application and the database are residing in the same server)..
the user in the client will not be able to browse such site , what i need is that some caching system which can be used so that the user can not feel that the site is down or that the connection
to the server is down
so is there any tool for that

No.

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subject: hr_maintain_masterdata showing an infotype that the user does not have authorisation for
Hi all,
I've a user account that's meant to perform staffing, based on the actual HR role. The system is also set up with an infogroup that contains infotypes 0000, 0001, 0006, 0185, XYZ and other infotypes; XYZ representing an actual infotype. The HR role is not supposed to have this infotype XYZ.
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