I think you'd be better off with Cache::FastMmap because it handles the expiration and can automatically fetch new values from the database when the cached data expires (see the read_cb() method). With BerkeleyDB you would have to do that yourself.

In reply to Re^3: Calling a function in a defined time interval in mod perl by perrin
in thread Calling a function in a defined time interval in mod perl by Anonymous Monk

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