502 Proxy Error Apache
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502 Proxy Error Dns Lookup Failure
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 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 502 proxy error reason error reading from remote server 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 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 serv
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502 Proxy Error Chrome
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502 Proxy Error Web Service
only takes a minute: Sign up What is 502 Proxy error? How to Resolve it up vote 1 down vote favorite When i try to login into Artifactory web appliaction ,its showing proxy error. The Error message is below. Proxy http://stackoverflow.com/questions/169453/bad-gateway-502-error-with-apache-mod-proxy-and-tomcat Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /artifactory/webapp/login.html. Reason: Error reading from remote server Apache/2.2.15 (CentOS) Server at XX.XX.XX.XX Port 80 Any Solution for this? apache tomcat artifactory share|improve this question asked Apr 15 '15 at 5:12 Anil Yadav 120112 Do you see any errors in the Artifactory log? how is your proxy configured? can you login Artifactory directly (bypassing the proxy)? –drorb Apr http://stackoverflow.com/questions/29642042/what-is-502-proxy-error-how-to-resolve-it 15 '15 at 11:53 In error log also same error...connection time out..and proxy: Error reading from remote server returned by ............. –Anil Yadav Apr 15 '15 at 13:01 This looks like an error from an Apache log not Artifactory. I guess you have an Apache HTTPd server in front of Artifactory serving as a proxy. –drorb Apr 16 '15 at 6:25 Yes Drorb..I increased the timeout to 120 sec in httpd.conf . Now i m able to login. But the Artifactory appliaction is taking more than 100 sec to login...Is there any way to reduce this time. –Anil Yadav Apr 16 '15 at 6:33 This is not normal, should be much faster. I would start by making sure it has enough memory to run - jfrog.com/confluence/display/RTF/System+Requirements –drorb Apr 16 '15 at 6:54 | show 3 more comments active oldest votes Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook. Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Browse other questions tagged apache tomcat artifactory or ask your own question. asked 1 year ago viewed 5138 times Related
API is. We're using http://blog.somepixels.net/en/502-proxy-error-uploading-from-apache-mod_proxy-to-tomcat-7/ mod_proxy to do the job and everything is hosted on Amazon's EC2. Everything was working perfectly, but sometime ago we've started to see some http://www.webratio.com/forum/question-details/502-proxy-error?link=ln27d errors, when uploading big files, like this: Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could 502 proxy not handle the request POST /app/api/upload. Reason: Error reading from remote server Apache/2.2.22 (Amazon) Server at our_app_server.com Port 443 We started looking for solutions to this problem and tried a lot of things, like configuring the timeout on Apache's httpd.conf: # Configuring the timeout Timeout 2400 ProxyTimeout 2400 502 proxy error # Configuring the reverse proxy ProxyPass /app http://localhost:8080/app ProxyPassReverse /app http://localhost:8080/app After we've changed the timeout, it got a little better, but didn't solve the problem completely. So, after a lot more googling, we found out that this error on Apache's log: (103)Software caused connection abort: proxy: pass request body failed is caused by a malformed server response and, to ignore it, we could set this option on our httpd.conf: ProxyBadHeader Ignore After this change, it finally revealed to us the real problem: org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Read timed out org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789) javax.servlet.http.HttpServlet.service(HttpServlet.java:641) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:312) org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116) org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:324) org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:324) We started looking for the solution again and found a interesting Tomcat setting called disableUploadTimeout. People usually think you should set it as tr
to fix that? The proxy server received an invalid response from an upstream server. The proxy server could not handle the requestGET/. Reason:Error reading from remote server
x 0 Follow Answer Answer at this question and get points! 3 Answers most voted oldest newest 05 Feb '15, 07:26 AM Laurentiu Radu Forum Starter - Level 2 Hi, This error typically appearswhen Apache web server does not receive a valid HTTP response from the upstream server, which in this case is your Tomcat web application. If you are not using Apache HTTP Server and your are using only Tomcat the error may be generated due the following reasons: The Tomcat threads are timing out A network device is blocking the request, perhaps as some sort of connection timeout or DoS attack prevention system, or maybe a firewalll Tomcat may have crashed If you are using Apache, the solution is simple. Just edit thehttpd.conf file increasing the Timeout and ProxyTimeout values and adding theProxyBadHeader parameter. Timeout 3000 ProxyTimeout 3000 ProxyBadHeader Ignore More information you can find on Apache website (http://httpd.apache.org/docs/2.2/mod/mod_proxy.html) Also, please tell us in which configuration this error apears (Apache-Tomcat, only Tomcat,Nginx-Tomcat, etc.) x 0 05 Feb '15, 08:04 AM jisu lim No Forum Badges Thank you for your answer soon. I just deployed my project on the cloud. x 0 10 Mar '15, 02:51 PM Alexander Marquez No Forum Badges hola tengo el mismo erro pero no tengo instalado apache, como valido el log de webratio? x 0 Your answer Answer at this question and get points!