item expiration

Grant Maxwell grant.maxwell at
Thu Jun 12 23:47:38 UTC 2008

Hi folks

thanks for the thoughts Brian

I have thought of a way to do this for our case.

You see Brian the restart situation/node going down is already taken  
care of. It's only a problem if the class record exists but the item  
record does not.

The way to deal with this is to write them all to the cache as a  
single object (perl hash list probably). That actually delivers  
exactly the guarantee we need. And it's really simple.

It also saves me going out to look at other products - I like memcached.

cheers folks - case closed :)
And thanks for all the input.

On 13/06/2008, at 1:39 AM, Brian Moon wrote:

>> So we need to know that if we add the class and it's records, they  
>> have
>> to stay. Otherwise we could block actions because a record was not  
>> there
>> - for whatever reason.
> This all still falls apart when you are talking about a volitale  
> cache, IMO.  What happens when a memcached node goes down?  You have  
> to plan for that.
> It just does not sound like memcached is a good match for what you  
> are trying to do.
> -- 
> Brian Moon
> Senior Developer/Engineer
> ------------------------------
> When you care enough to spend the very least.

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