I am currently developing an application using JBoss with embedded Tomcat and running Apache with mod_jk to serve the images. When I hit the site through only Tomcat on port 8080 it runs smoothly and quickly. When I run the site with mod_jk through apache it runs fine until I have to make some kind of a post or get. It then stalls for about 20 seconds and finally makes a response. Here is a tcpdump of port 8009 and 80 from the server during the incident: from port 80: <nop,nop,timestamp 224486080 413472712> (DF) 14:14:12.640025 > 192.168.1.30.www > 10.0.1.23.1133: . 1:1(0) ack 717 win 31740 <nop,nop,timestamp 413472713 224486080> (DF) 14:14:12.880085 > 192.168.1.30.www > 10.0.1.23.1133: P 1:297(296) ack 717 win 31740 <nop,nop,timestamp 413472737 224486080> (DF) 14:14:12.882929 < 10.0.1.23.1133 > 192.168.1.30.www: . 717:717(0) ack 297 win 6432 <nop,nop,timestamp 224486105 413472737> (DF) ---hits internal JBoss port 8009 (ajp13 connector) here--- 14:14:29.070079 > 192.168.1.30.www > 10.0.1.23.1133: F 297:297(0) ack 717 win 31740 <nop,nop,timestamp 413474356 224486105> (DF) 14:14:29.072718 < 10.0.1.23.1133 > 192.168.1.30.www: F 717:717(0) ack 298 win 6432 <nop,nop,timestamp 224487724 413474356> (DF) 14:14:29.072758 > 192.168.1.30.www > 10.0.1.23.1133: . 298:298(0) ack 718 win 31740 <nop,nop,timestamp 413474356 224487724> (DF) and port 8009: <nop,nop,timestamp 413472737 413472735> (DF) 14:14:12.880013 < 127.0.0.1.4453 > 127.0.0.1.8009: . 671:671(0) ack 74 win 31072 <nop,nop,timestamp 413472737 413472735> (DF) 14:14:12.880027 > 127.0.0.1.8009 > 127.0.0.1.4453: P 74:80(6) ack 671 win 31072 <nop,nop,timestamp 413472737 413472737> (DF) 14:14:12.880027 < 127.0.0.1.8009 > 127.0.0.1.4453: P 74:80(6) ack 671 win 31072 <nop,nop,timestamp 413472737 413472737> (DF) 14:14:12.900014 > 127.0.0.1.4453 > 127.0.0.1.8009: . 671:671(0) ack 80 win 31072 <nop,nop,timestamp 413472739 413472737> (DF) 14:14:12.900014 < 127.0.0.1.4453 > 127.0.0.1.8009: . 671:671(0) ack 80 win 31072 <nop,nop,timestamp 413472739 413472737> (DF) ---here's the stall point--- 14:14:29.111568 > 127.0.0.1.4407 > 127.0.0.1.8009: P 3705858527:3705859103(576) ack 3692382751 win 31072 <nop,nop,timestamp 413474360 413469650> (DF) 14:14:29.111568 < 127.0.0.1.4407 > 127.0.0.1.8009: P 0:576(576) ack 1 win 31072 <nop,nop,timestamp 413474360 413469650> (DF) 14:14:29.116181 > 127.0.0.1.8009 > 127.0.0.1.4407: P 1:46(45) ack 576 win 31072 <nop,nop,timestamp 413474360 413474360> (DF) 14:14:29.116181 < 127.0.0.1.8009 > 127.0.0.1.4407: P 1:46(45) ack 576 win 31072 <nop,nop,timestamp 413474360 413474360> (DF) 14:14:29.116287 > 127.0.0.1.8009 > 127.0.0.1.4407: P 46:3918(3872) ack 576 win 31072 <nop,nop,timestamp 413474360 413474360> (DF) Here are the mod_jk logs with debug turned on (it is still slow in error logging mode): [Wed Sep 26 14:45:12 2001] [jk_ajp13.c (560)]: ajp13_unmarshal_response: status = 302 [Wed Sep 26 14:45:12 2001] [jk_ajp13.c (567)]: ajp13_unmarshal_response: Number of headers is = 3 [Wed Sep 26 14:45:12 2001] [jk_ajp13.c (610)]: ajp13_unmarshal_response: Header[0] [Content-Type] = [text/html] [Wed Sep 26 14:45:12 2001] [jk_ajp13.c (610)]: ajp13_unmarshal_response: Header[1] [Location] = +[http://192.168.1.30/gcpay/main.jsp] [Wed Sep 26 14:45:12 2001] [jk_ajp13.c (610)]: ajp13_unmarshal_response: Header[2] [Content-Length] = [167] [Wed Sep 26 14:45:12 2001] [jk_ajp13_worker.c (256)]: received from ajp13 #2 [Wed Sep 26 14:45:12 2001] [jk_ajp13_worker.c (518)]: Into jk_endpoint_t::done [Wed Sep 26 14:45:31 2001] [jk_uri_worker_map.c (343)]: Into jk_uri_worker_map_t::map_uri_to_worker [Wed Sep 26 14:45:31 2001] [jk_uri_worker_map.c (360)]: Attempting to map URI '/gcpay/main.jsp' [Wed Sep 26 14:45:31 2001] [jk_uri_worker_map.c (407)]: jk_uri_worker_map_t::map_uri_to_worker, Found a suffix match ajp13 +-> *.jsp [Wed Sep 26 14:45:31 2001] [jk_worker.c (123)]: Into wc_get_worker_for_name ajp13 In case you didn't somehow figure out I am running ajp13. Any suggestions or places to look would be great. I also wondered if tomcat was maybe re-compiling those pages during a post operation? BTW here's my mod_jk.conf: LoadModule jk_module /usr/lib/apache/mod_jk-eapi.so.new AddModule mod_jk.c JkWorkersFile /home/gcpay/jboss/tomcat/conf/workers.properties JkLogFile /home/gcpay/jboss/tomcat/logs/mod_jk.log JkLogStampFormat "[%a %b %d %H:%M:%S %Y] " # # Log level to be used by mod_jk # JkLogLevel error JkMount /gcpay/*.jsp ajp13 JkMount /gcpayadmin/*.jsp ajp13 JkMount /gcpay/*.css ajp13 JkMount /gcpayadmin/*.css ajp13 # # Allow images to be access without going through the ajp12 connector Alias /gcpay/images /home/httpd/html/gcpay/images/ <Directory /gcpay/images> Options FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> Alias /gcpayadmin/images /home/httpd/html/gcpay/images/ <Directory /gcpayadmin/images> Options FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> Alias /gcpay /home/httpd/html/gcpay/index.html Alias /gcpayadmin /home/httpd/html/gcpay/index2.html Thanks -Robert Grey _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
