Sliding expiration

Simone Busoli simone.busoli at
Fri Apr 18 21:52:00 UTC 2008

What we're trying to accomplish is to oversize the memcached servers
memory in order to potentially keep all our data inside memchached,
which will never need to reclaim space and thus won't apply its lru
mechanism. Therefore, in order to keep the most frequently used data
always in cache we would like to apply a sliding expiration of x to
the entries, so that as long as they are accessed at least each x,
they never expire.

On 4/18/08, Dustin Sallings <dustin at> wrote:
>    What exactly are you trying to accomplish?
>    The lru does a pretty good job of keeping active stuff active,
> otherwise, yeah, do it in your app.
>    There's been talk of a touch command? But implementing it isn't a
> very high priority.
> --
> Dustin Sallings (mobile)
> On Apr 18, 2008, at 1:56, "Simone Busoli" <simone.busoli at>
> wrote:
> > Hello, I have a question about the expiration policy employed by
> > Memcached. Does it support sliding expiration out of the box or does
> > it have to be managed at the application level?

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