Please explain this 502 Bad Gateway error

[just starting]

hi,

First of all my sincere thanks.

Error Log Entry : [2007/12/27 10:44:07 [error] 2625#0: *7 connect()
failed (111: Connection refused) while connecting to upstream, client:
192.168.0.234, server: localhost, request:
"GET /KdocProj/dboard.html?_dc=1198726407859 HTTP/1.0", upstream: "
http://192.168.0.241:8080/KdocProj/dboard.html?_dc=1198726407859", host: "
192.168.0.241:8000"]

Let me explain a few things.

The machine where I am testing the hosting is 192.168.0.241.
nginx is hosted on port 8000 and jetty on 8080 on the same machine mentioned
above.

There is a statement in the error log like : "while connecting to upstream,
client: 192.168.0.234,", please note that 192.168.0.234 is the local proxy
server for internet access. So, what i think happening here is that nginx is
trying to access the local jetty server via proxy.

For Igor:
>>>>The "Connection refused" usually means that backend does not listen
on 192.168.0.241:8080 or its listen queue is full: it can not handle all
requests.

I am the only one testing this implementation. So, I dont think the listen
queue is full and also I made sure that jetty is listening on port 8080.

Thanks,
Rakesh.

PS: I appreciate for your quick reply. Frankly I haven't hoped for such
quick reply. Hope you do well in the future.



On Dec 27, 2007 10:00 PM, Aleksandar Lazic <al-nginx at none.at> wrote:

> Hi,
>
> On Don 27.12.2007 20:50, just starting wrote:
> >hi,
> >
> >I am using version 0.5.34.
> >
> >I am testing nginx as a proxy server + static file server for my test
> >site deployed on jetty.
> >
> >Can you please explain the error mentioned here.
> >
> >Error Log Entry : [2007/12/27 10:44:07 [error] 2625#0: *7 connect()
> failed
> >(111: Connection refused) while connecting to upstream, client:
>
> Which clearly say:
>
> the connection to 192.168.0.241 on port 8080 with protocol http was not
> successful.
>
> What is in the jetty log?
> Are you able to reach jetty with curl, curl -v
> http://192.168.0.241:8080/ ?
> Is a FW between nginx & jetty?
>
> >192.168.0.234, server: localhost, request: "GET
> >/KdocProj/dboard.html?_dc=1198726407859 HTTP/1.0", upstream: "
> >http://192.168.0.241:8080/KdocProj/dboard.html?_dc=1198726407859", host:
> "
> >192.168.0.241:8000"]
>
> Cheers
>
> Aleks
>
>
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