Hi, My take on it would be that tomcat restarts are fast, and so no such page is needed. If yours takes a long time to restart, you probably have extra applications or processing taking place on shutdown/startup. If you really do need to do a bunch of stuff on startup AND you must have this system unavailable page display during this time, follow Tim's Apache approach...
Yoav Shapira Millennium Research Informatics >-----Original Message----- >From: Tim Funk [mailto:[EMAIL PROTECTED] >Sent: Tuesday, June 15, 2004 6:58 AM >To: Tomcat Users List >Subject: Re: how to show "System Unavailable" page when Tomcat is down > >Type 3 drivers are better than type 1. (But that depends on the >implementation) The JDBC-ODBC driver was *never* meant for production >usage. > >I know little about IIS - but I would hope there is a button that can be >clicked, or a tab in some property screen that would let you do the >equivalent of sending all traffic to a single page. > >-Tim > >Stephen Charles Huey wrote: > >> If we currently have Tomcat 4 running on Win 2000, would there be >> significant overhead to run Apache as well just so that we can put up an >> error page when Tomcat has to be restarted? >> >> Some of you mentioned I should try using a type 4 driver, and I Googled >> around to brush up on different types, and I realize we probably use a >> type 1 driver since it's a JDBC to ODBC bridge. The database we're >> using is Raining Data's D3 database (a multivalue db), and I searched >> around and only found a couple of JDBC drivers that look like they might >> work, but they're type 3 drivers, and I'm wondering what (if any) >> additional layer I need to make a type 3 driver talk to the D3 database, >> or if I can simply drop it into my J2EE/Tomcat. These are the drivers I >> found: >> >> FusionWare, halfway down the page: >> http://www.sqlsummit.com/JDBCVend.htm >> >> Liberty JDBC: >> http://www.multivalue.com/LibJDBC.html >> >> >> ----- Original message ----- >> From: "David Smith" <[EMAIL PROTECTED]> >> To: "Tomcat Users List" <[EMAIL PROTECTED]> >> Date: Mon, 14 Jun 2004 20:10:11 -0400 >> Subject: Re: how to show "System Unavailable" page when Tomcat is down >> >> To directly answer your question, essentially something has to be >> listening on port 80 even when Tomcat is down. The only way I know of >> to do that is to put up some kind of proxy server with a error page. I >> know Apache can be used that way, Squid looks like it could as well. >> >> On the other hand, you could also replace your ODBC driver with a >> genuine type 4 driver and make your site much more reliable. I think >> someone else already suggested that and I whole-heartedly agree. >> >> --David >> >> Stephen Huey wrote: >> >> >>>Though I'm capable of adding to the JSPs and servlets on an existing >>>site, I'm no web server guru, so I'm having a hard time with this >>>problem. Our database vendor's ODBC driver has issues, so occasionally >>>we have to restart Tomcat (and maybe the driver) to get the website >>>running again, and since this is used by thousands of people every day, >>>they can get pretty annoyed when all they see in their browser is "Page >>>cannot be displayed" (and this can go on for anywhere from 5-15 >>>minutes). >>>We need a way to show some redirect requests for the website to some >>>static HTML page when Tomcat is down. Since Tomcat is running our >>>website, I'm really not sure of how to provide a solution for that (we >>>don't have multiple application servers--just one web server and one >>>database server). Any thoughts would be greatly appreciated! >>> >>>Thanks, >>>Stephen >>> >>>--------------------------------------------------------------------- >>>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] >> >> >> --------------------------------------------------------------------- >> 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] 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]
