# Error serving generated xml - Windows - Apache - Mongrel **URL:** \ **Category:** Deployment\ **Created:** [April 18, 2007, 10:21pm UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382 "2007-04-18T22:21:32Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [April 18, 2007, 10:21pm UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/1 "2007-04-18T22:21:32Z")
I am attempting to follow the document created by Brain Hogan on “Serving Multiple Rails Applications on Windows with Apache and Mongrel” and all seems well except for one issue. One of my actions generates an xml document and uses the “send\_data” method to return the file. However, this is the error I get when executing this controller action: Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /cbf\_dev/admin/generate\_spreadsheet\_xml/2. Reason: Error reading from remote server This function works as expected when calling Mongrel directly, but as soon as I proxy the call through Apache to Mongrel, the above error. Can anyone help me solve this issues? I think it is something to do with the way Apache (and the reverse\_proxy\_fix.rb file described in document mentioned above) is attempting to reconcile the name? This newbie thanks you in advance for any help. Kevin. ---
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [April 18, 2007, 11:32pm UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/2 "2007-04-18T23:32:41Z")
Forget this request. I discovered the problem was due to spaces being in the name of the file I was sending. As soon as I changed the name from “CMBS Design.xls” to “CMBS-Design.xls”, everything started working. Thanks, Kevin ---
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [April 19, 2007, 12:01am UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/3 "2007-04-19T00:01:44Z")
Well, I thought I fixed this problem entirely, but now it seems to happen if the xml generation takes too long. Could Apache be timing out waiting for the “send\_data” response? If so, does anyone know how to fix that issue? Kevin ---
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [April 25, 2007, 4:29am UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/4 "2007-04-25T04:29:29Z")
@Kevin: Hey, glad you find that useful. What version of Apache are you using? Are you tied to that particular setup on Windows? I have some alternative solutions you might be able to use as well–contact me off-list for that. You may need to add the right mime type to Apache. It sounds like the proxy stuff doesn’t like the response it’s seeing. Anything jump out at you in the apache logs? If you can maybe send me code I can try to replicate it here. I am very interested in problems with the setups I share with people… 🙂 ---
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [April 25, 2007, 4:38pm UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/5 "2007-04-25T16:38:22Z")
To follow-up, XML files were coming through as MIME text/xml while all my generated XML that has no problems is application/xml I’ve added AddType application/xml to my Apache conf and we’ll see how that goes. On Apr 25, 9:17 am, “removed\_email\_address@domain.invalid” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [April 25, 2007, 3:17pm UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/6 "2007-04-25T15:17:58Z")
This sounds like it might be related to a problem that cropped up with my app a few weeks ago. Setup RHEL 4 Apache 2.2.3 Ruby 1.8.4 Rails 1.1.6 Mongrel 1.0.1 (8 running) with fastthread 0.6.2 After I commented out a line in a flat non generated XML and added one node in another XML file I’ve noticed errors cropping up serving the documents getting 404’s not all the time but once out of every 55 times or so. I have a bit of a different Apache/Mongrel setup. Everything is ProxyPass’d to Mongrel so the XML file is initially handled by Mongrel to Apache. That’s why the problem you’re having struck me as possibly being related. I removed the commented line from the XML thinking that perhaps there was a strange character code introduced, a tab or something. The file passes all validation tests so I’m at a bit of a lost what it is about these two XML files and just these XML files that Mongrel has problems with. Nothing has been changed in the setup other than the XML (well ok a couple of unrelated views) I can’t roll back the changes to the XML as I need them. Is there any other information I can contribute? I’ll keep testing around. This is line that was changed for one of the files, I removed it entirely yesterday and am checking logs for any improvements : \ ---
**Author:** ![b0rdslide](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/a9a28c/32.png) [@b0rdslide](https://www.ruby-forum.com/u/b0rdslide)\ **Post date:** [May 23, 2007, 5:10pm UTC](https://www.ruby-forum.com/t/error-serving-generated-xml-windows-apache-mongrel/92382/7 "2007-05-23T17:10:37Z")
Hi, I dont have an answer to your quesion. I just started trying to use the same document to serve multiple rails applications on Windows. Page 5 of 13: Section - Link the configurations Include conf/httpd-webbrick-proxy.conf After adding this include line into the httpd.conf file, apache does not restart because it cannot load the httpd-webbrick-proxy.conf file. Do I have to download this file separately. I do not see the httpd-webbrick-proxy.conf in the Apache2/conf directory. I would appreciate any help. Thanks Udai Kevin A. wrote: > I am attempting to follow the document created by Brain Hogan on > “Serving Multiple Rails Applications on Windows with Apache and Mongrel” > and all seems well except for one issue. One of my actions generates an > xml document and uses the “send\_data” method to return the file. > However, this is the error I get when executing this controller action: > > Proxy Error > The proxy server received an invalid response from an upstream server. > The proxy server could not handle the request GET > /cbf\_dev/admin/generate\_spreadsheet\_xml/2. > > Reason: Error reading from remote server > > This function works as expected when calling Mongrel directly, but as > soon as I proxy the call through Apache to Mongrel, the above error. > > Can anyone help me solve this issues? I think it is something to do with > the way Apache (and the reverse\_proxy\_fix.rb file described in document > mentioned above) is attempting to reconcile the name? > > This newbie thanks you in advance for any help. > > Kevin.