Re: [users@httpd] CacheGcInterval and CacheForceCompletion directives in mod_cache Apache 2.0

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On Apr 8, 2005 10:37 AM, Marco Emilio Poleggi <marco.poleggi@xxxxxxx> wrote:
> Hi all,
> 
> I'm testing a reverse caching proxy configuration with Apache 2.0.46. I need to
> use the directives:

Personally, I wouldn't dare use the cache in 2.0.46.  It has been
much-repaired in recent versions, and I'm told it works best in the
development version (2.1).

> 
>  CacheGcInterval
>  CacheForceCompletion
> 
> which are marked as "currently not implemented" on the mod_[disk_]cache
> documentation page (http://httpd.apache.org/docs-2.0/mod/mod_cache.html). Yet it
> seems these options are widely used.

Widely used where?  mod_disk_cache does not have garbage collection. 
In recent version, there is a program supplied that can be run from
cron to do this job.

> Also, I would test a two-tier cache, with "small" objects in main (heap) memory
> through  mod_mem_cache and the other "big" objects on disk through
> mod_disk_cache. All objects are static and coming from a back-end server. Since
> main memory caching is a delicate issue (O.S. caching always lying under...),
> has anybody had bad experience with heap memory caching?

I don't think apache would support determining the cache based on size.

Joshua.

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