On 10/24/2013 11:13 AM, Eliezer Croitoru wrote: > Out of curiosity, > What squid Digest content is? > What the Digest rebuild does? > Let say an ICP\HTCP request can reflect the Information inside the digest? http://wiki.squid-cache.org/SquidFaq/CacheDigests Alex. > On 10/24/2013 07:54 PM, Alex Rousskov wrote: >> On 10/24/2013 07:43 AM, Omid Kosari wrote: >> >>> "digest_generation off" temporary solved problem but needs restart . >>> I have >>> tested with reload before . >> >> Sounds like you have detected the source of the blocking Squid problem >> and confirmed it! The fact that digest generation makes your Squid >> unresponsive is essentially a Squid bug, but you might be able to help >> Squid by adjusting its configuration. If you want to try it, I suggest >> re-enabling digest generation and setting >> digest_rebuild_chunk_percentage to 1. >> >> If that works around your problem, great. Unfortunately, I suspect Squid >> may still be unresponsive during digest generation time because of how >> regeneration steps are scheduled and/or because of an old bug in the >> low-level scheduling code of "heavy" events. However, using the minimum >> digest_rebuild_chunk_percentage value (1) is still worth trying. >> >> >>> But i could not use digest benefits anymore . Is there big penalty >>> if both >>> caches are in same gigabit switch ? >> >> The digest optimization can be significant if the two Squids share a lot >> of popular content _and_ it takes a long time for each Squid to get that >> content from the internet during a miss. >> >> >> HTH, >> >> Alex. >>
