Apache Web Server 502 Error
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Apache 503 Error
million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Bad Gateway 502 error with Apache mod_proxy and Tomcat up vote 39 down vote favorite 14 We're running a
Apache 500 Error
web app on Tomcat 6 and Apache mod_proxy 2.2.3. Seeing a lot of 502 errors like this: Bad Gateway! The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /the/page.do. Reason: Error reading from remote server If you think this is a server error, please contact the webmaster. Error 502 Tomcat has plenty of threads, so it's not thread-constrained. We're pushing 2400 users bad gateway error 502 via JMeter against the app. All the boxes are sitting inside our firewall on a fast unloaded network, so there shouldn't be any network problems. Anyone have any suggestions for things to look at or try? We're heading to tcpdump next. UPDATE 10/21/08: Still haven't figured this out. Seeing only a very small number of these under load. The answers below haven't provided any magical answers...yet. :) java apache tomcat mod-proxy share|improve this question edited Oct 21 '08 at 19:45 community wiki 2 revsAlex Miller I am facing this problem for some time during my running application –Uday A. Navapara Mar 12 '15 at 5:27 add a comment| 7 Answers 7 active oldest votes up vote 32 down vote Just to add some specific settings, I had a similar setup (with Apache 2.0.63 reverse proxying onto Tomcat 5.0.27). For certain URLs the Tomcat server could take perhaps 20 minutes to return a page. I ended up modifying the following settings in the Apache configuration file to prevent it from timing out with its proxy operation (with a large over-spill factor in case Tomcat took longer to return a page): Timeout 5400 ProxyTimeout 5400 Some backgound ProxyTimeout alone wasn't enough. Looking at the documentation for Timeout I'm guessing (I'm not sure) that this is becaus
providing any support for the steps described on this page. Please be aware what does 502 bad gateway error mean that this material is provided for your information only, and 502 response error that you use it at your own risk. Problem Users will occasionally receive an 502 proxy error apache tomcat error page reporting a "Bad gateway" condition. This means the proxy couldn't get a response from the application server. Cause This can result from http://stackoverflow.com/questions/169453/bad-gateway-502-error-with-apache-mod-proxy-and-tomcat a known issue in Apache, affecting versions 2.0.63 through to 2.2.3, and was marked as resolved with 2.2.4. Apache wasn't checking for one of the possible conditions for its connections to the application server, so would periodically (e.g. once in tens of thousands of requests) use a https://confluence.atlassian.com/confkb/occasional-502-bad-gateway-from-apache-http-proxy-200212803.html connection handle that had been reset by the application server. Resolution Upgrade to the latest version of Apache httpd. If you're using a web server compiled from source and have a strong reason not to upgrade, you also have the option of making a tiny edit to the source as described in one of the comments and recompiling. Was this helpful? Yes No Thanks for your feedback! Why was this unhelpful? It wasn't accurate It wasn't clear It wasn't relevant Submit feedback Cancel Have a question about this article? See questions about this article Powered by Confluence and Scroll Viewport Atlassian Support Ask the community Provide product feedback Contact technical support Atlassian Privacy Policy Terms of use Security Copyright © 2016 Atlassian Except where otherwise noted, content in this space is licensed under a Creative Commons Attribution 2.5 Australia License.
504 Gateway Timeout Error 3 503 Service Unavailable 4 500 Internal Server Error 5 How to Fix a 400 Bad Request Error http://pcsupport.about.com/od/findbyerrormessage/a/502error.htm About.com About Tech PC Support . . . Troubleshooting Guides Error Messages 0 to 9 Error Messages 502 Bad Gateway Error (What It Is and How to Fix It) How to Fix a 502 Bad Gateway Error 502 Bad Gateway Error. © THORDOG By Tim Fisher PC Support Expert Share Pin Tweet Submit Stumble Post Share By 502 error Tim Fisher Updated August 31, 2016. The 502 Bad Gateway error is an HTTP status code that means that one server received an invalid response from another server.The Bad Gateway error can be customized by each website. While fairly uncommon, different web servers do describe this error differently. Here are some common ways you might see it.How You 502 proxy error Might See the 502 Error"502 Bad Gateway""502 Service Temporarily Overloaded""Error 502""Temporary Error (502)""502 Proxy Error""502 Server Error: The server encountered a temporary error and could not complete your request""HTTP 502""502. That's an error""Bad Gateway: The proxy server received an invalid response from an upstream server""HTTP Error 502 - Bad Gateway"The 502 Bad Gateway error displays inside the Internet browser window, just as web pages do.Twitter's famous "fail whale" error that says Twitter is over capacity is actually a 502 Bad Gateway error (even though a 503 Error would make more sense).A Bad Gateway error received in Windows Update generates a 0x80244021 error code or the message WU_E_PT_HTTP_STATUS_BAD_GATEWAY. continue reading below our video How to Fix Browser Error Codes When Google services, like Google Search or Gmail, are experiencing a 502 Bad Gateway, they often show Server Error, or sometimes just 502, on the screen.502 Bad Gateway errors are completely independent of your particular setup, meaning that you could see one in any browser, on any operating system, and on any device.