> -----Original Message----- > From: Raj [mailto:sunfire2005@xxxxxxxxx] > Sent: Thursday, February 16, 2006 12:47 PM > To: squid-users@xxxxxxxxxxxxxxx > Subject: parent cache information > > > Hi All, > > I have 2 servers A and B both running Squid 2.5.STABLE10. Server A is > a parent server which is sitting on the DMZ segment. Server B is a > child proxy server which is in LAN (local network). On both servers > below is the cache_dir configuration. > > cache_dir ufs /var/squid/cache 400 16 256 > Run squid -v and look for "--enable-storeio=ufs,aufs". If you see it, change the cache_dir line to use aufs. You will likely see a performance increase, even on a lightly loaded proxy. > I was not the one who configured these proxy servers. I took over > somone else recently. Is it necessary to configure cache_dir on both > the servers. Can I do all the caching on server B (child server). Are > there any benefits if I configure both the servers to cache. How does > this caching work if I have cache_dir enabled on both the servers? If > I access lets say google.com, does the server A caches the URL or both > A & B. Below are the access logs on both the servers See below. > > Server A (Parent server): > SNIP > > > Server B (Child): > SNIP > > If you look at the above logs Server A goes direct all the time. Does > it mean it is not caching anything eventhough cache_dir is enabled? This just means that server A doesn't have a parent that it queries, not that the request is somehow bypassing the proxy. > What is the best way to configure in this situation? Activate cache on > both the servers or just on server B? The answer to this question depends entirely on the cache_peer line on server B. If you see the term proxy-only, then using the cache_dir on both is going to be fine (this will mean that anything found on the parent server will not be cached locally). Without the proxy-only directive, the two proxies have a much greater chance of overlapping cached content. > > Any help would be really appreciated. > Chris
