Thanks
Than i do not see reason why i have to code it instead
of beeing able to set from admin web console which data to memcache
and for how long

On Jan 19, 3:24 pm, "Ikai L (Google)" <[email protected]> wrote:
> Andrei,
>
> No, this is fundamentally impossible with Memcache. Memcache values are
> lazily expired at GET time. When you set an expiration on a Memcache item,
> all you are really doing is telling Memcache to look at that timestamp
> whenever a read operation takes place, throwing it away if it's past the
> date.
>
> Memcache is commonly used as a pass-through cache. Store the item in
> Memcache as well as persistent store. If the item doesn't exist in Memcache
> when you do a read, read it from the datastore and cache the item.
>
>
>
> On Mon, Jan 18, 2010 at 7:22 AM, Andrei <[email protected]> wrote:
> > Are there plans to add notification for expiration?
>
> > On Jan 18, 8:30 am, jd <[email protected]> wrote:
> > > There is no event mechanism with memcache.  You would need to store
> > > items in memcache and the datastore at the same time.  If memcache
> > > doesn't have it check the datastore.
>
> > > On Jan 18, 4:44 am, Andrei <[email protected]> wrote:
>
> > > > Is there a way to code Memcache that would notify when particular
> > > > entry is about to expire
> > > > so i can store it in DB?
> > > > Thanks
>
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> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine
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