>Number: 5391 >Category: mod_proxy >Synopsis: hanging connection causes large traffic >Confidential: no >Severity: serious >Priority: medium >Responsible: apache >State: open >Class: sw-bug >Submitter-Id: apache >Arrival-Date: Tue Nov 30 04:10:00 PST 1999 >Last-Modified: >Originator: [EMAIL PROTECTED] >Organization: apache >Release: 1.3.9 >Environment: Linux 2.2.10 #7 gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) >Description: Sometimes, accessing a certain website (www.gratis.de) via our proxy will cause the httpd making the connection to hang. The status page does not list the traffic but a tcpdump gets this:
09:57:31.431205 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1339 win 32120 (DF) 09:57:31.432184 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1339:1340(1) ack 1 win 32736 (DF) 09:57:31.451203 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1340 win 32120 (DF) 09:57:31.451803 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1340:1341(1) ack 1 win 32736 (DF) 09:57:31.471203 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1341 win 32120 (DF) 09:57:31.471955 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1341:1342(1) ack 1 win 32736 (DF) 09:57:31.491206 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1342 win 32120 (DF) 09:57:31.492437 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1342:1343(1) ack 1 win 32736 (DF) 09:57:31.511206 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1343 win 32120 (DF) 09:57:31.514062 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1343:1344(1) ack 1 win 32736 (DF) 09:57:31.531210 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1344 win 32120 (DF) 09:57:31.534053 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1344:1345(1) ack 1 win 32736 (DF) 09:57:31.551205 romberg.kiz.uni-vechta.de.3022 > gratis.de.www: . ack 1345 win 32120 (DF) 09:57:31.556170 gratis.de.www > romberg.kiz.uni-vechta.de.3022: P 1345:1346(1) ack 1 win 32736 (DF) This until I kill the httpd-process in question. We had three occasions with a IP-Volume of about 1.5 GB in each direction. There are no correcsponding acces-log entries. In at least two cases the acces causing the hanging proxy was never logged at all. We do not have any related problems with any other site. Ulf >How-To-Repeat: Good question... Until now I have not been able to reproduce the problem on purpose. It just happens... >Fix: Nope >Audit-Trail: >Unformatted: [In order for any reply to be added to the PR database, you need] [to include <[EMAIL PROTECTED]> in the Cc line and make sure the] [subject line starts with the report component and number, with ] [or without any 'Re:' prefixes (such as "general/1098:" or ] ["Re: general/1098:"). If the subject doesn't match this ] [pattern, your message will be misfiled and ignored. The ] ["apbugs" address is not added to the Cc line of messages from ] [the database automatically because of the potential for mail ] [loops. If you do not include this Cc, your reply may be ig- ] [nored unless you are responding to an explicit request from a ] [developer. Reply only with text; DO NOT SEND ATTACHMENTS! ]
