On Tue, 2007-04-17 at 10:37 +0200, Boyle Owen wrote: > > -----Original Message----- > > From: Tom Haddon [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, April 17, 2007 10:16 AM > > To: users@httpd.apache.org > > Subject: [EMAIL PROTECTED] 500 error page not showing? > > > > Hi Folks, > > > > I believe I have an issue with a custom 500 error page not showing. I > > can simulate the error (or rather, cause the error) by stopping my > > database server which then produces an "Operational Error" page. If I > > look in my apache access logs I see an entry like this: > > > > 91.84.7.17 - - [16/Apr/2007:13:16:15 +0100] "GET / HTTP/1.1" > > 500 107 "-" > > "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.3) Gecko/20061201 > > Firefox/2.0.0.3 (Ubuntu-feisty)" > > > > >From what I can see this is showing that a 500 error is > > being recorded. > > Interestingly I get nothing in the error log. In my apache config I > > have: > > > > ErrorDocument 500 /500.html > > > > But the document isn't being shown, instead just the plain > > "Operational > > Error" page. > > How is your database server accessed by the webserver? > > If it's running as an application that apache accesses directly (eg, CGI > or similar executes DB queries) then a DB error should cause the script > to fail and a "real" 500. > > However, if the DB is an HTTP-aware back-end and is accessed via > mod_proxy then the 500 is generated in the DB server and is simply > passed on by apache. So it's not a 500 in apache, hence no error log. I > suspect the latter since you mention an "Operational Error" page that, > presumably, comes from the DB server.
Thanks - that makes sense. I think you're right that the DB error isn't registering as an Apache error because Apache isn't connecting directly, it's an application issue. > > > > > If I shut down my app servers, I can simulate/cause an 502 error fine > > and the 502 error page I've created displays fine, and I get a message > > like this in the error log: > > > > [Tue Apr 17 07:45:06 2007] [error] (111)Connection refused: > > proxy: HTTP: > > attempt to connect to 127.0.0.1:9999 (localhost) failed > > Sure - apache can't connect to the DB so it is apache that has to report > back to the client. Hence error logging. > > > > > Can anyone enlighten me? > > Did I? Absolutely. Thanks, Tom > > Rgds, > Owen Boyle > Disclaimer: Any disclaimer attached to this message may be ignored. > > > > > Thanks, Tom > > > > -- > > > > > > ---------------------------------- > > Tom Haddon > > mailto:[EMAIL PROTECTED] > > m +1.415.871.4180 > > www.greenleaftech.net > > > > > > --------------------------------------------------------------------- > > The official User-To-User support forum of the Apache HTTP > > Server Project. > > See <URL:http://httpd.apache.org/userslist.html> for more info. > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > " from the digest: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > This message is for the named person's use only. It may contain confidential, > proprietary or legally privileged information. No confidentiality or > privilege is waived or lost by any mistransmission. If you receive this > message in error, please notify the sender urgently and then immediately > delete the message and any copies of it from your system. Please also > immediately destroy any hardcopies of the message. You must not, directly or > indirectly, use, disclose, distribute, print, or copy any part of this > message if you are not the intended recipient. The sender's company reserves > the right to monitor all e-mail communications through their networks. Any > views expressed in this message are those of the individual sender, except > where the message states otherwise and the sender is authorised to state them > to be the views of the sender's company. > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: [EMAIL PROTECTED] > " from the digest: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] -- ---------------------------------- Tom Haddon mailto:[EMAIL PROTECTED] m +1.415.871.4180 www.greenleaftech.net --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: [EMAIL PROTECTED] " from the digest: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
