I 'm able to ping the machines The one thing that I observed is that by the time of crisis squid process is using 100% of the CPU. That's happening to every server which has the problem... I 've tried to use strace but I've got no success since the strace output is huge. What else can I do to identify the problem.? At the time of problem seems from cache.log that squid loses connectivity with almost everybidy 2012/02/29 09:15:51| TCP connection to assets_servers (xxx.xxx.xxx.xxx:80) failed 2012/02/29 09:15:51| TCP connection to typos_servers (xxx.xxx.xxx.xxx:80) failed 2012/02/29 09:15:51| Detected DEAD Parent: tityros_servers 2012/02/29 09:15:51| TCP connection to assets_servers (xxx.xxx.xxx.xxx:80) failed 2012/02/29 09:15:51| TCP connection to tityros_servers (xxx.xxx.xxx.xxx:80) failed 2012/02/29 09:15:51| TCP connection to typos_servers (xxx.xxx.xxx.xxx:80) failed >From another sibling log at the same time 2012/02/29 09:15:51| Detected DEAD Sibling: xxx.xxx.xxx.xxx Thanks in advance Yiannis -----Original Message----- From: Sebastian Muniz [mailto:basurerosebita@xxxxxxxxx] Sent: Τρίτη, 28 Φεβρουαρίου 2012 11:52 μμ To: squid-users@xxxxxxxxxxxxxxx Subject: Re: squid "stops working" several times a day On 2/28/2012 2:54 PM, karj wrote: > Hi All, > I have a problem with my squid's. > Squid "stops working" several times a day. > The only thing that warns me that something is wrong in cache.log is > the "Detected DEAD Sibling: xxx.xx.xxx.xxx" message. > After a few seconds everything goes back to normal. > We are using 5 squids version (2.7.Stable 9) in Accelerator Mode which > are sibling to each other. > So we have 5 sibling squid in front of our web farms. Serving almost > 7000/request per second at peak time, and an average of 4500/request > per second. > The problem occurs randomly in all servers... Are you able to reach (telnet or ping or anything) the sibling during the times that squid stops working? What can you tell about the sibling logs? Specially the cache.log Regards Sebastian
