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Posted to users@httpd.apache.org by Oleg Dulin <ol...@gmail.com> on 2012/06/04 15:51:14 UTC
[users@httpd] mod_proxy, jetty -- (20014)Internal error: proxy: error reading status line
We have a configuration as follows:
Apache2 httpd with mod_proxy (2.2.15) in the DMZ
Java server process with embedded Jetty in the secure zone
All calls to the Java server are POST made by an iPad application
The mod_proxy configuration looks like this:
<VirtualHost ……. >
ProxyRequests Off
ProxyPreserveHost On
<Proxy *>
Order allow,deny
Allow from all
</Proxy>
ProxyPass /ls http://jetty:8080/url
ProxyPassReverse /ls http://jetty:8080/url
</VirtualHost>
Sporadically, quite disturbingly it is about every 4th or 5th HTTP
POST, we get this:
502 error sent back to the iPad application and at that moment in the
httpd error log we get this:
[Fri Jun 01 17:06:28 2012] [error] [client 71.197.43.86]
(20014)Internal error: proxy: error reading status line from remote
server ……….
[Fri Jun 01 17:06:28 2012] [error] [client 71.197.43.86] proxy: Error
reading from remote server returned by …..
(URLs obfusaced)
I tried everything under the sun and different combinations of it, with
no luck.
SetEnv proxy-nokeepalive 1
#SetEnv force-proxy-request-1.0 1
SetEnv proxy-initial-not-pooled 1
#SetEnv proxy-sendcl 1
Now, one thing is that in the QA environment there is a firewall and
xinetd in between Apache and Jetty. In dev environment that isn ot the
case, and I haven't tried it in dev yet. But the problem persists in
both places.
I don't believe this is unique to Jetty as I found plenty of discussion
about Tomcat, weblogic, IIS, etc. having this problem.
Any thoughts are greatly appreciated.
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[users@httpd] Re: mod_proxy, jetty -- (20014)Internal error: proxy: error reading status line
Posted by Oleg Dulin <ol...@gmail.com>.
Ok, problem solved by switching to nginx…. Thank you guys.
On 2012-06-04 13:51:14 +0000, Oleg Dulin said:
> We have a configuration as follows:
>
> Apache2 httpd with mod_proxy (2.2.15) in the DMZ
> Java server process with embedded Jetty in the secure zone
> All calls to the Java server are POST made by an iPad application
>
>
> The mod_proxy configuration looks like this:
>
> <VirtualHost ……. >
> ProxyRequests Off
> ProxyPreserveHost On
> <Proxy *>
> Order allow,deny
> Allow from all
> </Proxy>
> ProxyPass /ls http://jetty:8080/url
> ProxyPassReverse /ls http://jetty:8080/url
>
> </VirtualHost>
>
> Sporadically, quite disturbingly it is about every 4th or 5th HTTP
> POST, we get this:
>
> 502 error sent back to the iPad application and at that moment in the
> httpd error log we get this:
>
> [Fri Jun 01 17:06:28 2012] [error] [client 71.197.43.86]
> (20014)Internal error: proxy: error reading status line from remote
> server ……….
> [Fri Jun 01 17:06:28 2012] [error] [client 71.197.43.86] proxy: Error
> reading from remote server returned by …..
>
> (URLs obfusaced)
>
> I tried everything under the sun and different combinations of it, with
> no luck.
>
> SetEnv proxy-nokeepalive 1
> #SetEnv force-proxy-request-1.0 1
> SetEnv proxy-initial-not-pooled 1
> #SetEnv proxy-sendcl 1
>
> Now, one thing is that in the QA environment there is a firewall and
> xinetd in between Apache and Jetty. In dev environment that isn ot the
> case, and I haven't tried it in dev yet. But the problem persists in
> both places.
>
> I don't believe this is unique to Jetty as I found plenty of discussion
> about Tomcat, weblogic, IIS, etc. having this problem.
>
> Any thoughts are greatly appreciated.
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