Deploying TOMCAT on live production server
Hi, Wonder if anyone can help. I keep reading that one should not deploy TOMCAT on its' own on a live production server, that you should use Apache as the main webserver redirecting through to TOMCAT - but I don't find anywhere that says why. Why shouldn't you put just TOMCAT on a live production server? Why should you use Apache Tomcat? Anyone help? Many thanks, Steve.
Re: Deploying TOMCAT on live production server
http://jakarta.apache.org/tomcat/faq/connectors.html#integrate -Tim Steve Jenkins wrote: Hi, Wonder if anyone can help. I keep reading that one should not deploy TOMCAT on its' own on a live production server, that you should use Apache as the main webserver redirecting through to TOMCAT - but I don't find anywhere that says why. Why shouldn't you put just TOMCAT on a live production server? Why should you use Apache Tomcat? Anyone help? Many thanks, Steve. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Deploying TOMCAT on live production server
Hi, Apache is faster for static content and has shorter startup times. And HTTP implemenation is probably more mature in a pure HTTP server like apache. Steve Jenkins wrote: Hi, Wonder if anyone can help. I keep reading that one should not deploy TOMCAT on its' own on a live production server, that you should use Apache as the main webserver redirecting through to TOMCAT - but I don't find anywhere that says why. Why shouldn't you put just TOMCAT on a live production server? Why should you use Apache Tomcat? Anyone help? Many thanks, Steve. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Deploying TOMCAT on live production server
Howdy, Apache is faster for static content and has shorter startup times. And HTTP implemenation is probably more mature in a pure HTTP server like apache. Shorter startup times for Apache, yes. More mature HTTP server, yes. The FAQ Senor Funk pointed to is very good reading. But please, can someone post static performance benchmarks for Apache vs. Tomcat? Maybe it's me, but every time someone says Apache is faster, there's never proof. Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Deploying TOMCAT on live production server
That's not true. Do your own tests and see if Apache + Tomcat or just Tomcat fullfill your requirement. Tomcat 4.1.x in some case is as good as Apache/Tomcat. -- Jeanfrancois Florian Ebeling wrote: Hi, Apache is faster for static content and has shorter startup times. And HTTP implemenation is probably more mature in a pure HTTP server like apache. Steve Jenkins wrote: Hi, Wonder if anyone can help. I keep reading that one should not deploy TOMCAT on its' own on a live production server, that you should use Apache as the main webserver redirecting through to TOMCAT - but I don't find anywhere that says why. Why shouldn't you put just TOMCAT on a live production server? Why should you use Apache Tomcat? Anyone help? Many thanks, Steve. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Deploying TOMCAT on live production server
Thanks to one and all for their responses, particularly for the URL: http://jakarta.apache.org/tomcat/faq/connectors.html#integrate My final question is - is deploying TOMCAT on its' own secure enough? Or is deploying just Apache secure enough? Thanks, Steve. - Original Message - From: Steve Jenkins To: [EMAIL PROTECTED] Sent: Monday, November 03, 2003 1:32 PM Subject: Deploying TOMCAT on live production server Hi, Wonder if anyone can help. I keep reading that one should not deploy TOMCAT on its' own on a live production server, that you should use Apache as the main webserver redirecting through to TOMCAT - but I don't find anywhere that says why. Why shouldn't you put just TOMCAT on a live production server? Why should you use Apache Tomcat? Anyone help? Many thanks, Steve. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Deploying TOMCAT on live production server
It depends. One would argue that tomcat by itself is more secure because 1) Its only one thing to defend 2) Don't need to worry about any apache exploits OTOH 1) Apache has been hardened - its exploits are rare and when exposed are quickly fixed. (Tomcat's eploits are also quickly fixed too) 2) Apache can act as a barrier to prevent exploits from happening in tomcat (or exploits written into webapps) IOW, different strokes for different folks. -Tim Steve Jenkins wrote: Thanks to one and all for their responses, particularly for the URL: http://jakarta.apache.org/tomcat/faq/connectors.html#integrate My final question is - is deploying TOMCAT on its' own secure enough? Or is deploying just Apache secure enough? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat as a production server?
Howdy, Please where can I get a free non graphical profiler? (The server doesn't have any graphic stuff installed) Comes with java: hprof ;) There are also scripts around the web, including on java.sun.com, that analyze hprof output to provide some nice additional, human-friendly output. Google is your friend for these. But the idea behind profiling is to profile before you ship. Profile in your development and test environments, which hopefully have ability to display graphics ;) My personal favorite profiler is OptimizeIt (and believe me, if there was a free one that I've found better, I'd be using the free one) Yoav Shapira Millennium ChemInformatics This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Tomcat as a production server?
To force a dump of the call stack, type: kill -3 process id I'm not sure where the output will go for you, it depends on the configuration of your system. Search for Thread- in your log files. As for the CPU pinning, I agree with whoever wrote in earlier that it's probably some bad code that you wrote. Which isn't nice to hear, because finding the code can be like finding a needle in a haystack. If I was you, I'd start looking at any connections made from your tomcat server to other servers, eg. JDBC connections or HTTP posts, maybe even SMTP. If these connections hang then you might get performance problems. -Original Message- From: Ben Ricker [mailto:[EMAIL PROTECTED]] Sent: Monday, February 17, 2003 7:07 AM To: Tomcat Users List Subject: Re: Tomcat as a production server? You want to put a profiler on that box and see what threads are racing away. You can also tell the JVM to throw a traceback of all the threads being used, but I for got how exactly :( Anyway, look at the code. You definately have something going on there. Ben Ricker On Sat, 2003-02-15 at 18:47, Arcadius A. wrote: Hello! We're using tomcat 4.1.12, Apache 1.3.27 , mod_jk1.2.2 on a redhat 7.3 server ( AMD Duron 1.2GHz, 256 RAM). The problem is that the server runs quite fine the first few days but after a week, the server is heavily busy: While the number of tomcat processes and the memory usage is slightly the same, the CPU usage of each of the tomcat processes highly increase ( from 0.0% to about 19% for each of the tomcat processes). so tomcat can no longer respond to requests from the browser. the only one thing I use to do is restart the server then everything works fine again Note that all the 6 java processes shown in the attached file are from tomcat. And we're using tomcat's default configurations. Please has anyone coped with this problem before? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Ben Ricker [EMAIL PROTECTED] Wellinx.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat as a production server?
You want to put a profiler on that box and see what threads are racing away. You can also tell the JVM to throw a traceback of all the threads being used, but I for got how exactly :( Anyway, look at the code. You definately have something going on there. Ben Ricker On Sat, 2003-02-15 at 18:47, Arcadius A. wrote: Hello! We're using tomcat 4.1.12, Apache 1.3.27 , mod_jk1.2.2 on a redhat 7.3 server ( AMD Duron 1.2GHz, 256 RAM). The problem is that the server runs quite fine the first few days but after a week, the server is heavily busy: While the number of tomcat processes and the memory usage is slightly the same, the CPU usage of each of the tomcat processes highly increase ( from 0.0% to about 19% for each of the tomcat processes). so tomcat can no longer respond to requests from the browser. the only one thing I use to do is restart the server then everything works fine again Note that all the 6 java processes shown in the attached file are from tomcat. And we're using tomcat's default configurations. Please has anyone coped with this problem before? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Ben Ricker [EMAIL PROTECTED] Wellinx.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat as a production server?
Hello! Ben Ricker [EMAIL PROTECTED] wrote in message 1045494425.1758.7.camel@localhost">news:1045494425.1758.7.camel@localhost... You want to put a profiler on that box and see what threads are racing away. You can also tell the JVM to throw a traceback of all the threads being used, but I for got how exactly :( Please where can I get a free non graphical profiler? (The server doesn't have any graphic stuff installed) Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat as a production server?
Hi I have also had this problem of tomcat jumping to high cpu utilization...but restarting is the solution I have also resorted toAnybody else have any clues on this? Thanks Harish - Original Message - From: Arcadius A. [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, February 15, 2003 4:49 PM Subject: Re: Tomcat as a production server? the top file can be found here: http://ahouans.sh.cvut.cz/top.txt Arcadius. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat as a production server?
On Sun, Feb 16, 2003 at 01:08:31AM -0800, Harish Kumar K.K. wrote: I have also had this problem of tomcat jumping to high cpu utilization...but restarting is the solution I have also resorted toAnybody else have any clues on this? We've had problems like this and I believe it turned out to be bugs in beans we wrote. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat as a production server?
Hello! We're using tomcat 4.1.12, Apache 1.3.27 , mod_jk1.2.2 on a redhat 7.3 server ( AMD Duron 1.2GHz, 256 RAM). The problem is that the server runs quite fine the first few days but after a week, the server is heavily busy: While the number of tomcat processes and the memory usage is slightly the same, the CPU usage of each of the tomcat processes highly increase ( from 0.0% to about 19% for each of the tomcat processes). so tomcat can no longer respond to requests from the browser. the only one thing I use to do is restart the server then everything works fine again Note that all the 6 java processes shown in the attached file are from tomcat. And we're using tomcat's default configurations. Please has anyone coped with this problem before? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat as a production server?
the top file can be found here: http://ahouans.sh.cvut.cz/top.txt Arcadius. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
