Matt on 12/05/2006 15:58 Axel-Stéphane SMORGRAV said the following:
As far as I can tell from the code it should return HTTP_BAD_GATEWAY, i.e. HTTP 502. You can use the ErrorDocument directive to specify a HTML page to return to the client in case the error occurs. -ascs -----Original Message-----From: Matthew Claridge [mailto:mclaridge@xxxxxxxxxxxxx] Sent: Friday, May 12, 2006 3:30 PMTo: users@xxxxxxxxxxxxxxxx Subject: Re: [users@httpd] Proxy errors Thanks for this - I've tried changing the timeout so I'll see what happens. Is it possible to catch the error and display something nicer instead? cheers Matt on 12/05/2006 10:27 Axel-Stéphane SMORGRAV said the following:The error you are referring to is generated during the processing of the backend server response. It may be due to the backend server closing the connection, or the connection timing out. The timeout is 5 minutes by default, so unless the request really takes that long to process, I think it is more likely that this is due to the remote server having closed the connection. The timeout value can be changed. ProxyTimeout surely applies, but you may also have to change Timeout. -ascs -----Original Message----- From: Matthew Claridge [mailto:mclaridge@xxxxxxxxxxxxx] Sent: Thursday, May 11, 2006 1:55 PM To: users@xxxxxxxxxxxxxxxx Subject: [users@httpd] Proxy errors Hi, I'm seeing the following in my apache error log: proxy: Error reading from remote server But I'm having trouble tying it up to a request in the access log and also having problem diagnosing the exact fault. Can I therefore ask a few questions? 1. We use mod_proxy as part of a whole pile of URL rewriting we do. I *think* the proxy is timing out during the rewriting process, possibly because Apache gets busy. We also limit the bandwidth on this site so that might be causing the timeout. Does this seem a reasonable explanation? Or does anyone else have any other ideas? 2. Another possibility is that a lot of our pages make http requests to external services behind the scenes, before returning to the user. If these external services fail to respond, this may also cause the proxy timeout. Comments? 3. I have ProxyErrorOverride turned on, but does this error have an associated HTTP 1.1 status code that I can trap and then give a better error? I don't see anything in the access logs, but that might be because its trapped inside mod_rewrite. 4. When this error occurs, it doesn't seem to be either <Timeout> or <ProxyTimeout> after the request is made. My understanding is that this error occurs because the proxy times out, but which timeout value is it supposed to use? Thanks in advance for any help you can give. cheers Matt -- Matthew Claridge Product Support Engineer RWA Limited Tel: 02920 815 054 Email: mclaridge@xxxxxxxxxxxxx Web: www.rwa-net.co.uk --------------------------------------------------------------------- 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: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- 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: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx _____________________________________________________________________This e-mail has been scanned for viruses by Verizon Business Internet Managed Scanning Services - powered by MessageLabs. For further information visit http://www.mci.com-- Matthew Claridge Product Support Engineer RWA Limited Tel: 02920 815 054 Email: mclaridge@xxxxxxxxxxxxx Web: www.rwa-net.co.uk --------------------------------------------------------------------- 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: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- 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: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx _____________________________________________________________________ This e-mail has been scanned for viruses by Verizon Business Internet Managed Scanning Services - powered by MessageLabs. For further information visit http://www.mci.com
-- Matthew Claridge Product Support Engineer RWA Limited Tel: 02920 815 054 Email: mclaridge@xxxxxxxxxxxxx Web: www.rwa-net.co.uk --------------------------------------------------------------------- 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: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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