expiry

[Michael Burns]

On 26-May-06, at 11:49 AM, Torsten Foertsch wrote:

> On Friday 26 May 2006 13:21, Joshua Thijssen wrote:
>> When I add an item to the memcache and use an expiry-timestamp, it  
>> will
>> expire, no matter how many times the key is read in the remaing  
>> time. Is
>> it possible to create an item with a expiry-timestamp (an relative
>> value, say 60seconds), which gets reset each time the item is read so
>> so the item would stay in the cache until it's not read for a long  
>> time
>> or when we remove it.
>
> I have posted a patch some time ago (~april) that beside other  
> things includes
> a way to make expiry times relative to the last access. If you  
> cannot find it
> I'll send you as private mail.

Quick question re: this complex expiry issue:

What would you gain beyond using existing memcached settings to set  
your expiry-timestamp and ensuring you have enough RAM so that the  
built-in LRU mechanism can deal with your keys in its own way?

Seems like this kind of patch just adds complexity to a feature of  
memcached that already exists intrinsically ... unless I'm missing  
something ...


-Michael