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When connection pooling is used, each backend domain is resolved only once per child process, and reused for all further connections until the child is recycled. I was wondering where you came up with this config. This value is usually set dynamically to enable safe removal of the node from the cluster. Caching is provided by mod_cache and related modules. Source

Normally, mod_proxy will include the query string when generating the SCRIPT_FILENAME environment variable. X-Forwarded-Server The hostname of the proxy server. Fill in the Minesweeper clues A completely overkill BrainFuck lexer/parser How can a nine tailed fox catch its prey? So, please understand, I am merely suggesting this as a troubleshooting step, not a final solution. http://serverfault.com/questions/185894/proxy-error-502-reason-error-reading-from-remote-server-with-apache-2-2-3-de

Problem Users will occasionally receive an error page reporting a "Bad gateway" condition. Should I boost his character level to match the rest of the group? Seeing a lot of 502 errors like this: Bad Gateway! Browse other questions tagged java apache tomcat mod-proxy or ask your own question.

  1. When passing these requests on to the origin server, mod_proxy_http will always attempt to send the Content-Length.
  2. Browse other questions tagged java email proxy tomcat6 or ask your own question.
  3. The benefit is, that there is only one connection pool, so connections are more often reused.
  4. Having a module enabled does not mean it will get used, but having one disabled does mean that it can't get used, and therefore, anything that depends on it will necessarily
  5. Are there any historically significant examples?
  6. flushpackets off Determines whether the proxy module will auto-flush the output brigade after each "chunk" of data. 'off' means that it will flush only when needed; 'on' means after each chunk
  7. Once you've figured that out, then reset the repo back to its original state, and only enable that one module that needs to remain enabled.
  8. In the example given with ProxyPassReverse, the directive: ProxyPassReverseCookiePath "/" "/mirror/foo/" will rewrite a cookie with backend path / (or /example or, in fact, anything) to /mirror/foo/.

In the longer term, we fixed the app problems that were causing the timeouts in the first place. Which lane to enter on this roundabout? (UK) SQL Prepared Statement Factory What's the difference between `su -` and `su --login`? The reverse proxy then decides where to send those requests and returns the content as if it were itself the origin. 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

Because, remember, .so files are basically static libraries. Why exactly is that Keepalive=On critical? –dokaspar Apr 15 at 12:22 | show 1 more comment up vote 3 down vote Have you tried setting setenv proxy-initial-not-pooled 1? If the Proxy directive scheme starts with the balancer:// (eg: balancer://cluster, any path information is ignored), then a virtual worker that does not really communicate with the backend server will be https://httpd.apache.org/docs/current/mod/mod_proxy_http.html This is the default behavior.

Is this diffeomorphism on standard two sphere an isometry? Word for making your life circumstances seem much worse than they are Where is "Proceed To Checkout" button is located Steepest descent/gradient descent as dynamical system Derivatives: simplifying "d" of a Reason: Error reading from remote server ...which suggests that it's the ProxyTimeout setting that's too short, while investigation shows that Apache's Timeout setting (timeout between Apache and the client) that also The forward proxy can also use caching (as provided by mod_cache) to reduce network usage.

Use the ttl parameter to set an optional time to live; connections which have been unused for at least ttl seconds will be closed. http://stackoverflow.com/questions/2218685/apache2-mod-proxy-proxy-error The setting in the global server defines the default for all vhosts. Not the answer you're looking for? Either both paths should end with a / or neither.

Pear was crashing which in turn crashed the browser resulting in the above errors. http://caribtechsxm.com/proxy-error/proxy-error-reading-status-line-from-remote-server-apache.php where I Can find this config file and where I have to write this property in that config file. –Uday A. more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation The path component of the balancer URL in any balancer://...> container directive is ignored.

It is critical ;) share|improve this answer answered Feb 18 '11 at 22:27 Martin 55143 7 I believe you can mark your own answers as Accepted. 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 In 2.4.7 and later, support for using a Unix Domain Socket is available by using a target which prepends unix:/path/lis.sock|. http://caribtechsxm.com/proxy-error/proxy-error-502-apache.php It also takes care of redirects which the server backend.example.com sends when redirecting http://backend.example.com/bar to http://backend.example.com/quux .

The proxy server could not handle the request GET /users/sign_in. Would you like to answer one of these unanswered questions instead? Grzegorz Bizon @grzesiek 2016-01-12 13:08:56 UTC Status changed to closed Please register or sign in to post a comment Nonau83 Assignee Nonau83 @arnaud-grima Select assigneeAssign to None Milestone None MilestoneAssign milestone

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 web app on

When used in a forward proxy, workers are usually defined via the ProxySet directive: ProxySet "http://backend.example.com" connectiontimeout=5 timeout=30 or alternatively using Proxy and ProxySet: ProxySet connectiontimeout=5 The first part is for the cookie the second for the path. In the short term we increased the timeout. In short, the server name presented is that of the reverse DNS resolution of the IP, not the one in the URL.

The path is the name of a local virtual path; url is a partial URL for the remote server and cannot include a query string. That way I can do these sorts of global search-and-replace operations in my apache config working directory, as a troubleshooting step. Proxy Error The proxy server received an invalid response from an upstream server. http://caribtechsxm.com/proxy-error/proxy-error-apache-tomcat.php It wasn't accurate It wasn't clear It wasn't relevant Submit feedback Cancel Have a question about this article?

A reverse proxy (or gateway), by contrast, appears to the client just like an ordinary web server. Why was this unhelpful? ProxyReceiveBufferSize Directive Description:Network buffer size for proxied HTTP and FTP connections Syntax:ProxyReceiveBufferSize bytes Default:ProxyReceiveBufferSize 0 Context:server config, virtual host Status:Extension Module:mod_proxy The ProxyReceiveBufferSize directive specifies an explicit (TCP/IP) network buffer size Workaround There are three workarounds for this issue: Remove the reverse proxy Make a configuration where there's only one IP address per SSL virtual hosts/server name1 server name == 1 IP

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.