On 30/06/2015 8:21 p.m., Stakres wrote: > Anthony, Amos, > > The 2 squid are kid/parent each of them (both sibling). I'm being pedantic about this because the operations possible with a parent proxy are very different from those done with a sibling proxy. > So, when one aks the second, they play the role of kid -> parent, am I right > ? No. They play the roles of client->server. A kid->parent pair also plays those client->server roles, but the conditions are different. In particular parent can be an origin, sibling can only be a proxy or cache. The cache controls are different, and in your case digesting is telling the main proxy that its sibling has a cached object available. > > Here is the way: > Squid1 checks the Squid2 and gets that: > ... user-ip TCP_MISS/504 708 GET > http://code.jquery.com/ui/1.10.3/jquery-ui.js - CD_SIBLING_HIT/10.1.1.2 ... > Squid2 replies that to the Squid1: > ... squid1-ip TCP_MISS/504 478 GET > http://code.jquery.com/ui/1.10.3/jquery-ui.js - HIER_NONE/- text/html > > I did many wget with "unavailable" objects from both squid servers, i can > get the objects correctly. > I'll disable the sibling to check if we still have TCP_MISS/504, keep you > posted... > > As the 2 squid are in production at the ISP datacenter, not sure I could > apply a debug... > They do have the same route connected to 2 mikrotik (squid1 -> mikrotik1, > squid 2 -> mikrotik2), both mikrotik connected to the same cisco router. > Mangles/DNS/Gateway on mikrotiks are the same. Then it is pointless to connect these proxies in the way you have done. In particular the cache_peer "proxy-only" setting prevents them sharing cached objects, so the sibling should only be used if links through the Mikrotik go down. (any other use is a bug, and probably what you are hitting). So the sibling is being treated as a backup route if the upstream routes are not working. But the sibling is physically wired to use the same non-working upstream routes... I'm wondering if the 504 is result of the sibling restrictions: Cache-Control:only-if-cached,max-age=0 Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
