Anyone here who is familiar with squid knows that you can control the
caching behavior on a very flexible manner. See this url for examples:
http://squid.visolve.com/squid/squid30/tuning.html#refresh_pattern
I copied this in my own cache module.
Is there any interest to bring something like this to mod_cache? I was
thinking something like this:
#prefix match, don't try to cache this
CacheRule type=prefix arg=/server-status enable=off
#don't cache this very long. match uses strmatch
CacheRule provider=disk type=match arg=quick max=30
#Override expire on this stuff if less than 600 seconds
CacheRule provider=disk type=prefix arg=/special min=600 default=1200 \
max=3600
#change lmf for these. useing a pcre
CacheRule provider=disk type=regex arg=\d\.gif$ max=300 lmf=0.2
#provider may have own options
CacheRule provider=disk type=prefix arg=/other sendfile=off \
root=/some/dir
#catch all rule
CacheRule provider=disk type=all default=600 max=3600
This does complicate things. We could use the current virtual server
level stuff as defaults for CacheRule. This would, however, make the
cache very flexible.
I can write all the code, I just don't want to waste time if no one
cares. I don't want to maintain a fork, as I already do that...
--
Brian Akins
Lead Systems Engineer
CNN Internet Technologies
