Ralph, The problem is that we have very poor performance, and have a group of people taking the shotgun approach to its cause. I've ruled out aliens, sun-spots and nostradamus, but I can't refute claims of corrupted cache, index issues, etc, because I don't know enough about squid. I have been told that we need to reboot the server down every day, delete the acct file every week, and start squid with the "-z" option every 3-6 months. I don't know if this is SOP, or if I'm supposed to do it because its the way things have always been done.
Personally, I think it is a problem with the load balancer which all three cache servers are connected to, because the performance issues tend to arise during peak access times. Unfortunately, a different group does the networking support, and they claim that their infrastructure is fine. Can you suggest any "proof-positive" methods I can use to demonstrate that the problem is NOT with the cache servers? (And I'm afraid you'll need to be detailed in how to run the commands, because I am just learning squid.) Thanks again! Steve -----Original Message----- From: Raphael Maseko [mailto:[EMAIL PROTECTED] Sent: Saturday, April 03, 2004 3:38 AM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: RE: corrupt web caches? Steve, The good news is that logs show that your cache is fine - all the object have been validated. What I wanted to know, however, is where you got the information that your cache was corrupt. Was this from the logs or from someone (I think Tim asked you this). Is the cache working at all? The last error message that you sent was complaining about DNS and not corruption of your cache. I guess I am now lost as to what the exact problem is, pardon me. You may have to explain it again. Ralph -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, April 02, 2004 8:50 PM To: [EMAIL PROTECTED] Subject: corrupt web caches? Ralph, I have been unable to get permission to send a log file, but I've selected entries which I believe will confirm that the cache is stable When we restart squid with the -s option, we are able to see the startup results in the syslog. On each server, it comes up saying: Apr 2 11:45:05 mickeymouse squid[232]: Done reading /var/squid/cache swaplog (556853 entries) Apr 2 11:45:06 mickeymouse squid[232]: Finished rebuilding storage from disk. Apr 2 11:45:06 mickeymouse squid[232]: 556853 Entries scanned Apr 2 11:45:06 mickeymouse squid[232]: 0 Invalid entries. Apr 2 11:45:06 mickeymouse squid[232]: 0 With invalid flags. Apr 2 11:45:06 mickeymouse squid[232]: 556853 Objects loaded. Apr 2 11:45:06 mickeymouse squid[232]: 0 Objects expired. Apr 2 11:45:06 mickeymouse squid[232]: 0 Objects cancelled. Apr 2 11:45:06 mickeymouse squid[232]: 0 Duplicate URLs purged. Apr 2 11:45:06 mickeymouse squid[232]: 0 Swapfile clashes avoided. Apr 2 11:45:06 mickeymouse squid[232]: Took 17.0 seconds (32691.5 objects/sec). Apr 2 11:45:06 mickeymouse squid[232]: Beginning Validation Procedure Apr 2 11:45:06 mickeymouse squid[232]: 262144 Entries Validated so far. Apr 2 11:45:06 mickeymouse squid[232]: 524288 Entries Validated so far. Apr 2 11:45:06 mickeymouse squid[232]: Completed Validation Procedure further down in the log, we see the message: Apr 1 14:43:01 mickeymouse squid[237]: Rebuilding storage in /var/squid/cache (CLEAN) Based upon these startup results in the log file, is it necessary to rebuild the caches? Thanks in advance! Steve -- Outgoing mail is certified Virus Free. Checked by AVG Anti-Virus (http://www.grisoft.com). Version: 7.0.230 / Virus Database: 262.6.5 - Release Date: 3/31/2004