Hi everybody, 'Coming back with "another" question... I've got a three level proxy architecture and on the children, I often have the messages "Failed to select source for ..."(see cache.log below). This is really disturbing for the users because as an answer they got the error page "Unable to forward this request at this time. ...". I previously made some research (I've already posted some messages) on what could cause the parents being detected DEAD, but so far I couldn't find any answer. The parent isn't overloaded, all and all the network connectivity is good (speed, duplex, port errors) and they have an average of 70 req/s during the day (the same for the children but there are 3 times more of them). I've checked the firewall logs, no drops or reject. I've also tried to increase the syn backlog, play with the connect timeout (squid) and the fin timeout (/proc), with no success. For a child, we always have three parents, and what I find really strange is that seen from the children (cache.log below), it's always the three parents that are seen DEAD. I never have the case where only one parent is seen DEAD ; it's always all the parents that are seen like that. Any ideas? At last resort, I'll try to chain both the child and the parents on the same network segment, to exclude any firewall problem. Thx in advance. Pierre-Emmanuel cache.log : 2005/08/29 09:11:05| Detected DEAD Parent: parent1/8080/3130 2005/08/29 09:11:05| Detected DEAD Parent: parent2/8080/3130 2005/08/29 09:11:05| Detected DEAD Parent: parent3/8080/3130 2005/08/29 09:11:05| Failed to select source for 'http://www.espacetoutterrain.com/acces.htm' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://fr.wrs.yahoo.com/;_ylt=AgTyE2YRxNOBUTyQdclUkDtjAQx.;_ylu=X3oDMTB hNjRqazhxBHNlYwNzZWFyY2g-/SIG=11k98fh49/EXP=1125385828/*http%3A//fr.sear ch.yahoo.com/search?p=chats&ei=UTF-8&fr=fp-tab-web-t-1&fl=0&vc=&x=wrt&me ta=vl%3D' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://windowsmedia.com/CAPS/ImagesContent/49127B98-D82B-440C-BDEB-3AB8 7428423C.jpg' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://www.boursorama.com/infos/actualites/detail_actu_marches.phtml?&n ews=2907003' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://www.lerepairedesmotards.com/' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://forum.magicmaman.com/forum1.php?config=votrevie.inc' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://fr.yahoo.com/' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://www.journaldunet.com/0507/050722affiliation.shtml' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://fr.wrs.yahoo.com/;_ylt=AgTyE2YRxNOBUTyQdclUkDtjAQx.;_ylu=X3oDMTB hNjRqazhxBHNlYwNzZWFyY2g-/SIG=11k98fh49/EXP=1125385828/*http%3A//fr.sear ch.yahoo.com/search?p=chats&ei=UTF-8&fr=fp-tab-web-t-1&fl=0&vc=&x=wrt&me ta=vl%3D' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0 2005/08/29 09:11:05| Failed to select source for 'http://ad.fr.doubleclick.net/1020561/you_mm_customer_v1_336x500_20k.swf ?clickTag=http://ad.fr.doubleclick.net/click%3Bh=v5|32e3|f|60|%2a|t%3B19 188916%3B0-0%3B0%3B11705520%3B12049-336|500%3B11554603|11572499|1%3B%3B% 7Esscs%3D%3fhttp://www.smartadserver.com/clic/countgo.asp?47934,1481,868 6766726395684572,8741384140,S,0,URL=http%3A%2F%2Fwww.ibm.com/software/in fo/middleware/succeed/fr/index.jsp?ca=2005q3_swg_plays_fr%26me=a%26met=3 36x500_fla%26re=01net' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 1 2005/08/29 09:11:05| Failed to select source for 'http://www.peugeot.fr/ppp/PPPWEBFR/configurator/vp/1pt100/thumbnail_tri m/tt_1pt1_pafn.jpg' 2005/08/29 09:11:05| always_direct = 0 2005/08/29 09:11:05| never_direct = 1 2005/08/29 09:11:05| timedout = 0
