Re: [naviserver-devel] [naviserver-commits] naviserver ChangeLog, 1.405, 1.406

[Vlad S. <vl...@cr...>]

I am not going to argue, it is just old ns_cache used to have all 
functionality and was very popular and useful. Now we have more limited 
ns_cache_XXX family and standalone ns_cache does not work anymore.
I do not see who benefits from all this.

Zoran Vasiljevic wrote:
> Am 29.06.2006 um 22:44 schrieb Vlad Seryakov:
> 
>> So, i am being told all the time that i do not use the ns_cache in  
>> right
>> way, then somebody can define what is the correct and the only  
>> right way
>> of using ns_cache facility in the server environment? I could be  
>> lost or
>> un-educated enough but i would like to know?
>>
> 
> It is not the question of "right" or "wrong"! Lets not misunderstand
> each other.
> I can't tell you what is "right" or what's "wrong" but I can try to
> explain how I see the "usual" cache usage....
> 
> Noormally I'd use cache to save data which is rather expensive to
> calculate. In that case I will temporary save (hard calculated)
> data into some (size-limited) storage and read it from there.
> I also expect that this data will not change for some (rather short)
> period of time and for that time I will retain it in the cache.
> 
> A real-world examnple would be DNS lookup, or SQL selection
> or things lie that. In our code, I extensively use caches
> to store ID's of elements in a tree structure (similar to
> directory) which is emulated in 2 dimension table(s).
> It is rather expensive to get that info and since it does not
> change that often, I put those things in the cache.
> 
> I will however NOT use cache structures to maintain values used
> for commumincation or decision purposes. I would use nsv's or
> files or similar.
> 
> Having said that, I must stress that it is perfectly allright
> for me that anybody uses whatever tools he needs to get the job
> done. It is just that I see cache module usage in a certain patterns
> which may or may not correspond to the view of other people.
> 
> So what we are all about here is to understand what EXACTLY you
> are after and perhaps see if the cache as-is is the optimal solution
> for that, because our experience may be different from yours.
> But: if you say: guys, I know what I need, then I'm allright with that
> and will support you all the way.
> 
> Allright?
> 
> Cheers,
> Zoran
> 
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-- 
Vlad Seryakov
571 262-8608 office
vl...@cr...
http://www.crystalballinc.com/vlad/