Re: Tomcat on Ubuntu 8.04 VPS and presumably multiple socket problems
Hi Chris, Thank you for your response and time. Okay. Generally, it's considered polite to ask a single question in a single thread. Next time, just post them separately. You are right and I would have done that but thought the issues might be connected and caused by some low level system problem (firewall etc.) thence I bundled them. Luckily, meanwhile all issues are gone. Not sure what actually caused them but I will post my assumptions. 1st issue: I cannot connect to a socket server embedded in a webapp and listening on port 1 any more in all cases. If I do it from a mobile device, it works, if i do it from my laptop over a dsl connection (router in between), a channel is opened and instantly closed. This seemed to be caused by connecting too fast to the socket server. Lowering the sending frequency solved the issue. 2nd issue: mod_jk does not work. I think I replayed multiple instructions to set it up multiple times but in all cases it finally says Could not find a worker for worker name=myWorker Solved by using the procedure described here (till item 11): http://ubuntuforums.org/showthread.php?t=971517 I now use (for worker.properties): workers.tomcat_home=/usr/share/tomcat5.5 workers.java_home=/usr/lib/jvm/java-1.5.0-sun ps=/ worker.list=myWorker worker.myWorker.port=8009 worker.myWorker.host=localhost worker.myWorker.type=ajp13 worker.myWorker.lbfactor=1 which before was workers.list=myWorker,ajp13 workers.myWorker.type=ajp13 workers.myWorker.host=localhost workers.myWorker.port=8009 3rd issue: GWT-RPC calls do not get delivered any more to the browser on my laptop. After having solved 1) I switched back to IPV6. Not sure if exactly this caused the calls to work again but now they work :) Cheers and sorry for bugging fatzopilot -- View this message in context: http://old.nabble.com/Tomcat-on-Ubuntu-8.04-VPS-and-presumably-multiple-socket-problems-tp27332135p27385269.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
Re: Tomcat on Ubuntu 8.04 VPS and presumably multiple socket problems
On 30.01.2010 17:41, fatzopilot wrote: 2nd issue: mod_jk does not work. I think I replayed multiple instructions to set it up multiple times but in all cases it finally says Could not find a worker for worker name=myWorker Solved by using the procedure described here (till item 11): http://ubuntuforums.org/showthread.php?t=971517 I now use (for worker.properties): workers.tomcat_home=/usr/share/tomcat5.5 This attribute doesn't do anything, the line can be deleted. workers.java_home=/usr/lib/jvm/java-1.5.0-sun This attribute doesn't do anything, the line can be deleted. ps=/ This attribute doesn't do anything, the line can be deleted. worker.list=myWorker worker.myWorker.port=8009 worker.myWorker.host=localhost worker.myWorker.type=ajp13 worker.myWorker.lbfactor=1 OK, ver ybasic but should work. which before was workers.list=myWorker,ajp13 workers.myWorker.type=ajp13 workers.myWorker.host=localhost workers.myWorker.port=8009 The problem was the plural workers, which was wrong. After fixing this your original configuration should have worked, at least after dropping the non-defined worker ajp13 from worker.list. Regards, Rainer - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Tomcat on Ubuntu 8.04 VPS and presumably multiple socket problems
Rainer, Thanks for clarification. There are a lot of misleading configuration 'tweaks' roaming around which do not seem to have any effect (or at least not in recent versions). The minimal config now works well for me. Cheers fatzopilot Rainer Jung-3 wrote: On 30.01.2010 17:41, fatzopilot wrote: 2nd issue: mod_jk does not work. I think I replayed multiple instructions to set it up multiple times but in all cases it finally says Could not find a worker for worker name=myWorker Solved by using the procedure described here (till item 11): http://ubuntuforums.org/showthread.php?t=971517 I now use (for worker.properties): workers.tomcat_home=/usr/share/tomcat5.5 This attribute doesn't do anything, the line can be deleted. workers.java_home=/usr/lib/jvm/java-1.5.0-sun This attribute doesn't do anything, the line can be deleted. ps=/ This attribute doesn't do anything, the line can be deleted. worker.list=myWorker worker.myWorker.port=8009 worker.myWorker.host=localhost worker.myWorker.type=ajp13 worker.myWorker.lbfactor=1 OK, ver ybasic but should work. which before was workers.list=myWorker,ajp13 workers.myWorker.type=ajp13 workers.myWorker.host=localhost workers.myWorker.port=8009 The problem was the plural workers, which was wrong. After fixing this your original configuration should have worked, at least after dropping the non-defined worker ajp13 from worker.list. Regards, Rainer - 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://old.nabble.com/Tomcat-on-Ubuntu-8.04-VPS-and-presumably-multiple-socket-problems-tp27332135p27386170.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
Re: Tomcat on Ubuntu 8.04 VPS and presumably multiple socket problems
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Fatzopilot, On 1/26/2010 7:16 PM, fatzopilot wrote: I switched from a Windows XP based VPS to a Ubuntu 8.04 linux machine. Good choice! Are you still on a virtualized platform? Both run Tomcat 6.0.18 and 2.2.8 on tcp4. Could that mean Apache httpd 2.2.8 on IPv4? I now face several problems that might be related to some low level socket issue but do not necessarily need to. I am already glad to receive some hints to further boil down the issues. Okay. Generally, it's considered polite to ask a single question in a single thread. Next time, just post them separately. 1st issue: I cannot connect to a socket server embedded in a webapp and listening on port 1 any more in all cases. If I do it from a mobile device, it works, if i do it from my laptop over a dsl connection (router in between), a channel is opened and instantly closed. Hmm... so, on the Linux install, mobile devices (presumably through the wireless provider's network) connect correctly, but non-mobile devices fail? This sounds like it might be a firewall issue. Does your laptop allow outgoing connections to port 1? How about your router? Are you on a corporate network with IT Nazis preventing you from doing anything but using ports 80 and 443? You can use traceroute or other tools to confirm connectivity independently of the server software. Telnet also helps, sometimes, too. 2nd issue: mod_jk does not work. I think I replayed multiple instructions to set it up multiple times but in all cases it finally says Could not find a worker for worker name=myWorker Please post the relevant parts of your httpd.conf and jk_workers.properties. Most often, I've seen configurations where the JkWorkersFile directive is in the wrong place. Also, please post as much error information as mod_jk provides in your mod_jk.log file. 3rd issue: GWT-RPC calls do not get delivered any more to the browser on my laptop. This is probably due to issue #1 above, no? IPtables is turned off. On your laptop, on the server, or both? tcp0 0 127.0.0.1:8009 0.0.0.0:* LISTEN 29931/jsvc So, Tomcat is listening on port 8009, which is the default AJP port in server.xml. Tomcat looks like it's expecting to receive requests from httpd via AJP (provided by mod_jk). tcp0 0 0.0.0.0:1 0.0.0.0:* LISTEN 29931/jsvc Also good: Tomcat is listening to port 1. This means that your Tomcat configuration appears to be correct in terms of SecurityManager (if present), socket binding rights, etc. tcp0 0 0.0.0.0:80800.0.0.0:* LISTEN 29931/jsvc Note that Tomcat is also listening to port 8080, which is the default HTTP port in server.xml. If you don't want connections to circumvent httpd, you might want to disable this connector. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAktgjyEACgkQ9CaO5/Lv0PCO3ACfU1bRXkSPB6Ra3WiepoMMmdUN V1wAoJuA6cOFHCG1EQnBxH9Ex30ADjMM =XGBZ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
