Expiration question

[Andrew Harbick]

Similarly...  Can memcached be configured (or does it already) to update 
the expiration every time an object is touched?  The idea being that 
"hot" keys end up staying in the cached (even if they're never modified 
and recached).


Jehiah Czebotar wrote:
> On 3/28/07, Randy Wigginton <krw at nobugz.com> wrote:
>> My question was not clear.
>>
>> An object is being stored to memcache with an expiration time.  The
>> process that wrote the object is dead/unavailable.  Is there any way
>> to query memcache with a specific key to determine how much longer
>> the object will be available, or if it has already expired?
>>
> 
> sorry i didn't quite answer the right question then; There is no way
> to query memcached to see the expiration time (if any) for a given
> key. The closest you can get right now is just to attempt to get the
> key, and if it isn't there you can assume that either a) it was never
> there, or b) it expired.
> 
> I recall this being discussed on the list some time ago, and there was
> talk of adding a way to query the expiration time; but i don't recall
> ever seeing a patch go out for that