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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: http-tomcat - AJP ilink receive failed - 500/503 errors
Date Thu, 16 Dec 2010 19:54:38 GMT
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Shantanu,

On 12/15/2010 5:45 PM, Shantanu Pavgi wrote:
> There was a firewall between two systems (distinct from CentOS
> iptables), which dropped (idle) connections after some time. Not sure
> about exact firewall config here. The Apache web server would throw
> an 500/503 error when it tried to reuse an open connection which
> firewall had already closed.  The issue was resolved by using
> disablereuse parameter in ProxyPass directive.
> http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#proxypass

mod_jk (and therefore AJP) supports a ping operation in order to keep
the channels open but validate them (and re-connect if necessary) before
using them. You might want to look for those options in mod_proxy_ajp to
improve performance.

- -chris
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