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Kenchi,
On 3/10/16 8:25 PM, Kenichi MASUDA wrote:
> Thank you for your reply and I'm sorry for less information.
>
>> how are you connecting httpd -> Tomcat?
>>
> A client sends a request to httpd which listens as 80, after that
> httpd throw it like this to the tomcat which exists in backend and
> serves as 8080 port with the rewrite rule.
>
> RewriteCond %{REQUEST_URI}
> !\.(png|jpe?g|gif|css|js|xml|json|jsonp|ico|html?|swf|txt)$
> RewriteRule ^/(.*)$ http://localhost:8080/core/$1 [P,L]
So you are using mod_proxy_http.
> The error is: httpd log say that "proxy: Error reading from remote
> server returned by"
>
> and
>
> a client say that "502 proxy error. The proxy server received an
> invalid response from an upstream server. The proxy server could
> not handle the request POST /foo/bar"
>
> After having checked that error occurred, I've downgraded the
> tomcat version to 7.0.39 (the version which I used to use), so that
> the error disappeared.
That is a very old Tomcat version indeed (more than 3 years old). You
would be better upgrading to latest Tomcat 7.0.68 and figuring out
what's wrong with the proxy.
This might not be the best list to ask about mod_proxy_http, but there
are some people who probably have good experience with it here.
The best place to ask about mod_proxy_http would be on the httpd
user's list:
http://httpd.apache.org/lists.html#http-users
- -chris
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