Not listening on port/starting up correctly

[Richard Lewis-10]

Hi there,

I'm just rolling out my CherryPy application on a new (Debian lenny)
server.

When I try and start it, it doesn't report the normal:

[20/Sep/2009:17:30:03] ENGINE Bus STARTING
[20/Sep/2009:17:30:03] ENGINE Started monitor thread
'_TimeoutMonitor'.
[20/Sep/2009:17:30:03] ENGINE Started monitor thread 'Autoreloader'.
[20/Sep/2009:17:30:04] ENGINE Serving on 127.0.0.1:8081
[20/Sep/2009:17:30:04] ENGINE Bus STARTED

The only output I get is one of my own debugging statements, though
the process starts and remains running. netstat reports that nothing
is listening on port 8081. And I get 'Connection refused' errors from
clients on both the local and any remote hosts.

I wondered if it may be an IPv6 thing on this new server. But I tried
setting server.socket_host to '127.0.0.1' (and '0.0.0.0', and the IP
address of the machine) and it didn't make any difference.

The same application worked fine on both my development machine and
test server. Can anyone suggest what might be going on here?

I've noticed that the version of CP in Debian lenny is 3.0, whereas my
devel machine has 3.1. Might this make a difference?

Cheers.
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[Robert Brewer-4]

Richard Lewis wrote:

> I'm just rolling out my CherryPy application on a new (Debian lenny)
> server.
>
> When I try and start it, it doesn't report the normal:
>
> [20/Sep/2009:17:30:03] ENGINE Bus STARTING
> [20/Sep/2009:17:30:03] ENGINE Started monitor thread
> '_TimeoutMonitor'.
> [20/Sep/2009:17:30:03] ENGINE Started monitor thread 'Autoreloader'.
> [20/Sep/2009:17:30:04] ENGINE Serving on 127.0.0.1:8081
> [20/Sep/2009:17:30:04] ENGINE Bus STARTED
>
> The only output I get is one of my own debugging statements, though
> the process starts and remains running. netstat reports that nothing
> is listening on port 8081. And I get 'Connection refused' errors from
> clients on both the local and any remote hosts.
>
> I wondered if it may be an IPv6 thing on this new server. But I tried
> setting server.socket_host to '127.0.0.1' (and '0.0.0.0', and the IP
> address of the machine) and it didn't make any difference.
>
> The same application worked fine on both my development machine and
> test server. Can anyone suggest what might be going on here?
>
> I've noticed that the version of CP in Debian lenny is 3.0, whereas my
> devel machine has 3.1. Might this make a difference?

Definitely. CherryPy 3.1 was mostly an upgrade of cherrypy.engine,
including a lot of logging improvements on startup. Your best bet is to
upgrade your production box to CP 3.1.


Robert Brewer
fumanchu@...

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