2009/5/27 Guy Cube <guyinthec...@gmail.com>: > > Any found clue for this issue? We are also having similar issue with JBoss > 4.2.3/Apache 2.2.9 and mod_proxy_ajp.
I haven't found a solution yet. On the other hand, I haven't seen those issues for some time now. I tried to do some load tests but it seems I wasn't able to trigger those problems in a reliable way. > > On JBoss side, ajp connections are hanging there. in netstat -an we saw > AJP's tcp connections were in ESTABLISHED state and stay there forever. I've seen that too, iirc. I had around 400 open connections on tcp/tcp6 on port 8009. > > Can anyone give us clue, how to fix it? Unfortunately not. Just curious: Do you also run a Debian lenny kernel? > Guy > > > > Michael Biebl-2 wrote: >> >> Hi, >> >> first of all, I'd like to say hi, as I'm new to the list. >> >> I hope you can help me with the following problem I have. >> I run a stock Debian lenny installation with apache 2.2.9 and tomcat >> 6.0.18 >> I'm using mod_proxy to forward the request to tomcat using ajp. The >> apache vhost configuration looks like this: >> >> <VirtualHost *:80> >> >> ... >> ProxyRequests Off >> ProxyVia On >> ProxyPass /t/ ajp://localhost:8009/barcooServer/t/ >> ProxyPass /ws/ ajp://localhost:8009/barcooServer/ws/ >> ProxyPass /reports/ ajp://localhost:8009/barcooServer/reports/ >> ProxyPass / ajp://localhost:8009/barcooWebsite/ >> ProxyPassReverse / ajp://localhost:8009/barcooWebsite/ >> ProxyPassReverseCookiePath /barcooWebsite / >> ... >> >> </VirtualHost> >> >> The apache mpm prefork modules is used with the following configuration. >> <IfModule mpm_prefork_module> >> StartServers 5 >> MinSpareServers 5 >> MaxSpareServers 10 >> MaxClients 200 >> MaxRequestsPerChild 0 >> </IfModule> >> >> The tomcat ajp connector configuration is as simple as >> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> >> >> >> Now, when I get a lot of users access, the http connection via apache >> slows down to a crawl >> and I get a lot of the following messages in the kernel log: >> >> [2350915.113736] __ratelimit: 11 messages suppressed >> [2350915.113742] TCPv6: Possible SYN flooding on port 8009. Dropping >> request. >> >> apache and tomcat itself seem to be idling along, and the load is not >> that high on the machine. >> >> Has anyone an idea what's going on there? >> >> Thanks in advance for your help, >> Michael >> >> -- >> Why is it that all of the instruments seeking intelligent life in the >> universe are pointed away from Earth? >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> >> > > -- > View this message in context: > http://www.nabble.com/problems-with-mod_proxy-%28apache-2.2.9%29-and-tomcat-ajp-connector--%286.0.18%29-tp23501257p23737358.html > Sent from the Tomcat - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth? --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
