tis 2010-03-09 klockan 20:13 +0200 skrev Giannis Fotopoulos: > Hi, > I'm having some difficulty trying to set up my squid servers to use > cache-digests. Should be automatic unless you explicitly disable it. > First of all, in order to use cache-digests, must I also use ICP? No. > I do not get any errors, but I do not know even if it's working. What > should I see in the access.log? CD_PARENT_HIT / CD_SIBLING_HIT on parent/sibling cache hits. > My setup is made up of 3 servers(squid on all 3) behind a load balancer > on the same subnet. What load balancing method are you using? > The only thing I can get from squid's logs is (from server-squid1 access > log file): > > TCP_MEM_HIT/200 2366753 GET > http://server-squid2:3128/squid-internal-periodic/store_digest - NONE/- > application/cache-digest Thats the digest exchange. > From what I can understand, my server fetches the cache digest. But > what happens from there on? What happens if the requested site is found > on my sibling's cache? How does squid request it from the sibling cache, > and what is seen, if anything, in the logfile? It requests the objects using HTTP just as any other client. But a request only takes place if the requested object is not in the local cache but the peers cache digest indicates it's available there. additionally the request must not match hierarchy_stoplist or any cache deny rules, or Squid won't consider using a sibling for the request. Regards Henrik
