Hi all, I'm getting into trouble with squid again, maybe someone can help me again: 1.- the real problem: during some performance degration stage I describe later, Storage LRU Expiration age suddenly decreased from 6 days to 0.10 days and stays there now that the performance problem dissapeared. 2.- Some questions: the problems appear to happen with http requests per minute over 2000 and icp over 6000; I wouldn't say that should me too much for a Sun Ultra-2 with six 4G ultra-scsi disks (on different array controllers) for the cache. Might any big-cache manager confirm that is not really a big load ? do you ever run up to 30 dnsserver on such machines ?? 3.- the performance problems stage description: after the storeSwapOutFileOpened 'cache5p directories, etc' problems last week I decided to reinstall clean Solaris 2.7 (bare-bones installation to avoid any disturbing piece of software) machine with priority-paging, fastfs, noatime, nolargefiles, tcp-ip tuned, etc.. and recompiled squid-2.1PATCH2 this time only with the clientHandleIMSReply-leak patch. The problem is that this morning at peak hour I started to see again cache-hits-median-service-times getting over 1 second for some time. During that time there were no special signs of things going awry, I checked all system stats I know and cachemgr. No special squid log lines neither system console warnings. The only thing was dns lookups getting too slow and the 30 dnsservers being busy (and as a consecuence file descriptors dangerously getting close to 4000). I went to 32 dnsservers (the maximum) but I soon realised that the problem was the poor performance of dnsserver and pointed the machine to a less-loaded dns server; things got better but the 0.10 expiration age I mentioned above keeps there :-( I've limited the max_open_disk_fds as Duane greatly suggested me last week to check if it makes things better next time it happens. Thanks again and have you all a nice weekend, Javier Puche. PD: I don't find the link to the nice nlanr SNMP squid stats of all its caches (not pointed from http://www.ircache.net/Cache/Statistics/) I saw litle time ago, anyone has it handy? thanks.
