Thanks ! 2011/7/20 Amos Jeffries <squid3@xxxxxxxxxxxxx>: > On Wed, 20 Jul 2011 10:48:16 -0300, igor rocha wrote: >> >> Helo, >> I have many doubts about the operation and monitoring Cahe-digests. >> >> I do not know how to access the summaries created by the same, as I do?! > > http://$visible_hostname/squid-internal-periodic/store_digest > > Its a compacted binary hash, so all you find out by requesting it is whether > the peer is providing it, and maybe when it was Last-Modified. > >> >> I do not know how to ensure that all cache servers are utilising and >> swapping the summary cache_digests between them , is need a tag >> referencing she? > > You will see HTTP requests for the URL above being made between them. From > each squid to each of its peers for their individual digest. > >> >> The cache-digests is only an information exchange protocol between the >> caches that have to be used with a architecture of a squid (mesh, >> hierarquic, multicast)? > > It is a compressed form of the cache index hashes. The format and > construction is publicly available so there is nothing preventing other > cache software from providing digests which Squid can fetch. There are also > several caching softwares based on Squid which contain it. > >> >> Looking at my scenario, you can point my errors. >> RAM >> #cache_mem 16 MB >> cache_mem 128 MB >> maximum_object_size_in_memory 64 KB >> # HD >> #cache_dir aufs /var/spool/squid 512 16 256 >> cache_dir aufs /var/spool/squid 512 16 256 >> #maximum_object_size 128 MB >> maximum_object_size 16 MB >> minimum_object_size 0 KB >> # Cache Threshold limits >> cache_swap_low 90 >> cache_swap_high 100 >> #log_icp_queries on >> # Scenario 4. cache_didests >> #cache_peer 192.168.15.200 parent 3128 3130 roun-robin >> cache_peer 192.168.15.201 parent 3128 3130 digest-url= 192.168.15.200 >> 192.168.15.202 192.168.15.203 > > Only set digest URL if it is an unusual location (ie not the URL I mentioned > up above). > > Also " 192.168.15.200 192.168.15.201 192.168.15.203" is not a URL. > > I think you need to remove the whole attempt at configuring digest-url > option from the cache_peer lines. The defaults should work. > > >> cache_peer 192.168.15.202 parent 3128 3130 digest-url= 192.168.15.200 >> 192.168.15.201 192.168.15.203 >> cache_peer 192.168.15.203 parent 3128 3130 digest-url= 192.168.15.200 >> 192.168.15201 192.168.15.202 >> >> #Tags cache-digest >> digest_generation on >> digest_bits_per_entry 5 >> digest_rebuild_period 3600 >> digest_rewrite_period 3600 >> digest_rebuild_chunk_percentage 10 >> digest_swapout_chunk_size 4096 bytes >> > <snip> > > Amos >
