pcache rfe

[Remco Post <r.post@sara.nl>]

Hi all,

I've been playing with the pcache (HEAD code) and it does seem to be 
very usefull as it is but:

I'd like to be able to cache only a subset of the data. We have fields 
like userPassword and loginShell that should preferably allways be 
retrieved from the slq backend because these values can change quite 
rappidly (if a user has used all his budget, his shell changes, when 
more budget is added his shell changes back, comparable things happen to 
userPassword) so these should not be cached, or cached only for a short 
time, while other attributes are more static and could be cached for 
ages (one hour or even more).

Even worse, one client does not even list the requested attributes in 
it's ldap-queries (I've notified the vendor that I think it should), so 
non of that clients queries are cachable.

as I see it, currently the pcache does not allow for only part of a 
query to be retrieved from cache and the rest of the attributes to be 
retrieved from the backend (in my case sql). It would be nice (I think) 
if this were possible in the future, I guess this might be quite 
intrusive in the way the cache works, but it would make the cache more 
versatile and in my case it makes a huge impact on the usefullness of 
the cache.

--
Met vriendelijke groeten,

Remco Post

SARA - Reken- en Netwerkdiensten                      http://www.sara.nl
High Performance Computing  Tel. +31 20 592 3000    Fax. +31 20 668 3167

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