Proxy Error Reading From Remote Server
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The Proxy Server Received An Invalid Response From An Upstream Server. Apache Reverse Proxy
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Error Reading From Remote Server Meaning
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Ah01102: Error Reading Status Line From Remote Server
minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Proxy Error 502 “Reason: Error reading from remote server” with Apache 2.2.3 (Debian) mod_proxy and Jetty 6.1.18 up vote 47 down vote favorite 24 Apache is receiving requests at port :80 bad gateway the proxy server received an invalid response from an upstream server. and proxying them to Jetty at port :8080 The proxy server received an invalid response from an upstream server The proxy server could not handle the request GET /. My dilemma: Everything works fine normally (fast requests, few seconds or few tens of seconds long requests are processed ok). Problems occur when request processing takes long (few minutes?). If I issue request instead directly to Jetty at port :8080 the request is processed OK. So problem is likely to sit somewhere between Apache and Jetty where I am using mod_proxy. How to solve this? I have already tried some "tricks" related to KeepAlive settings, without luck. Here is my current configuration, any suggestions? #keepalive Off ## I have tried this, does not help #SetEnv force-proxy-request-1.0 1 ## I have tried this, does not help #SetEnv proxy-nokeepalive 1 ## I have tried this, does not help #SetEnv proxy-initial-not-pooled 1 ## I have tried this, does not help KeepAlive 20 ## I have tried this, does not help KeepAliveTimeout 600 ## I ha
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers what does error reading from remote server mean or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question setenv proxy-nokeepalive 1 x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; the proxy server received an invalid response from an upstream server iis it only takes a minute: Sign up Proxy Error 502 : The proxy server received an invalid response from an upstream server up vote 24 down vote favorite 6 We are building a mass mailing sending application in Java. Mail http://serverfault.com/questions/185894/proxy-error-502-reason-error-reading-from-remote-server-with-apache-2-2-3-de is being send by third party SMTP. After sending 400-500 mails tomcat6 service get stopped. Below is the error. Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /lin/Campaignn.jsp. Reason: Error reading from remote server Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request. Apache Server at msizzler.com Port 80 But when we are sending from localhost I http://stackoverflow.com/questions/20406845/proxy-error-502-the-proxy-server-received-an-invalid-response-from-an-upstream did not received any error. It send all the mails. Please help me to sort it out this problem. java email proxy tomcat6 share|improve this question asked Dec 5 '13 at 17:36 Ranjeet Ranjan 1332210 add a comment| 3 Answers 3 active oldest votes up vote 26 down vote The HTTP 502 "Bad Gateway" response is generated when Apache web server does not receive a valid HTTP response from the upstream server, which in this case is your Tomcat web application. Some reasons why this might happen: Tomcat may have crashed The web application did not respond in time and the request from Apache timed out 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 If the problem is related to timeout settings, you may be able to resolve it by investigating the following: ProxyTimeout directive of Apache's mod_proxy Connector config of Apache Tomcat Your network device's manual share|improve this answer answered Jan 29 '14 at 2:18 rmeakins 899611 add a comment| up vote 16 down vote Add this into your httpd.conf file Timeout 2400 ProxyTimeout 2400 ProxyBadHeader Ignore share|improve this answer edited Sep 6 at 16:52 Ian Hunter 3,49973559 answered Feb 18 '14 at 9:23 Albert Maclang 16112 8 Try it why? What's your explanation of why this might work? –EJP Feb 18 '14 at 9:55 The
href="../mod/mod_proxy.html">mod_proxy Status:Extension ModuleIdentifier:proxy_http_module SourceFile:mod_proxy_http.c Summary This module requires the service https://httpd.apache.org/docs/current/mod/mod_proxy_http.html of mod_proxy. It provides the features used for https://www.youtube.com/watch?v=0XQhiFCXnMw proxying HTTP and HTTPS requests. mod_proxy_http supports HTTP/0.9, HTTP/1.0 and HTTP/1.1. It does not provide any caching abilities. If you want to set up a caching proxy, you might want to use the additional service of the error reading mod_cache module. Thus, in order to get the ability of handling HTTP proxy requests, mod_proxy and mod_proxy_http have to be present in the server. Warning Do not enable proxying until you have secured your server. Open proxy servers are dangerous both to your network from remote server and to the Internet at large. Topics Environment Variables Request notes Directives This module provides no directives. Bugfix checklisthttpd changelogKnown issuesReport a bugSee also mod_proxy mod_proxy_connect Comments Environment Variables In addition to the configuration directives that control the behaviour of mod_proxy, there are a number of environment variables that control the HTTP protocol provider. Environment variables below that don't specify specific values are enabled when set to any value. proxy-sendextracrlf Causes proxy to send an extra CR-LF newline on the end of a request. This is a workaround for a bug in some browsers. force-proxy-request-1.0 Forces the proxy to send requests to the backend as HTTP/1.0 and disables HTTP/1.1 features. proxy-nokeepalive Forces the proxy to close the backend connection after each request. proxy-chain-auth If the proxy requires authentication, it will read and consume the proxy authenticat
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