Christopher, I am interested in more details from your comment:
"This is a common misconception: Apache httpd is *not* faster than Tomcat for static content *when configured appropriately*. The current default configuration is unfortunately much less optimized than Apache httpd's default configuration, so httpd beats Tomcat out-of-the-box." Do you mean the Default Servlet configuration ( http://tomcat.apache.org/tomcat-7.0-doc/default-servlet.html )or any servlet? Where can I learn more about optimizing serving static content with Tomcat? I want to stick with Tomcat alone. Thanks Fred On Wed, Aug 22, 2012 at 5:54 PM, Christopher Schultz < ch...@christopherschultz.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Miguel, > > On 8/22/12 5:04 AM, Miguel González Castaños wrote: > > On 21/08/2012 17:00, Christopher Schultz wrote: > >> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > >> > >> Miguel, > >> > >> On 8/21/12 6:25 AM, Miguel González Castaños wrote: > >>> Dear all, > >>> > >>> I have a Tomcat web server. From time to time, I need to do > >>> some maintenance and want people not to interact with the > >>> Tomcat server while I'm doing it. The key thing here is that > >>> the Tomcat server is up and running. This is what I want to > >>> achieve: > >>> > >>> - I want all people to be redirected from 80/443 port at > >>> server1 to a different URL http://server2/maintenance.html > >>> except my IP address (so I can check Tomcat myself). > >>> > >>> - If possible, I want this to be transparent to the user, so > >>> they get a http redirect showing the server1 in the client's > >>> browser, not server2 (but this is not that important). > >>> > >>> I assume I can use iptables to redirect people to a different > >>> web server, but how can I know that I need to redirect them to > >>> the maintenance.html if that server is serving other web pages > >>> too? > >> I don't know if you want to add this kind of complication to > >> your environment, but this is pretty much what mod_jk was built > >> for: distributing requests to one or more back-end Tomcat > >> servers. > >> > >> With mod_jk's management interface, you can take (load-balanced) > >> workers out of a pool, upgrade them, then add them back to the > >> pool. Before you add them back, you can always access them > >> directly if you have set up an HTTP <Connector> and you can feel > >> free to use any technique (iptables, bind to 127.0.0.1, etc.) to > >> prevent direct access to the HTTP port from normal users. > >> > >> The use of Apache httpd out in front of your app server(s) also > >> means that you can detect error conditions in the Tomcat instance > >> (like it's crashed or whatever) and give a semi-nice error > >> message instead of a connection failure. > >> > >> This is one of those situations where using Apache httpd out in > >> front of Tomcat makes some sense: not for performance, but for > >> availability. See Mladen's article with explains some of the why, > >> what and how of setting up a mod_jk-based cluster: > >> http://people.apache.org/~mturk/docs/article/ftwai.html > > It makes sense. I will give it a thought. Unfortunately until we > > migrate to a bigger server, I'm not sure the overhead of Apache is > > too much. Although I know Apache is faster for static content. > > This is a common misconception: Apache httpd is *not* faster than > Tomcat for static content when configured appropriately. The current > default configuration is unfortunately much less optimized than Apache > httpd's default configuration, so httpd beats Tomcat out-of-the-box. > > If you are going to end up fronting Tomcat with Apache httpd, it's > probably worth your while to push your static content out to the httpd > level so that you *can* serve your static content without proxying > that stuff over to your Tomcat instances. That /will/ certainly > improve performance given a two-tier setup. > > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0.17 (Darwin) > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAlA1AJoACgkQ9CaO5/Lv0PANlwCgtFR4YnlMDlsH4Mb1qlb8iBjt > pA8AmgP1RzyXWBNNY+n2L3pNSn7PrvAc > =u3UR > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
