[Buildbot-devel] Questions on basic BuildBot configuration

[Mark Pauley]

So you can see the master on port 25... can you telnet onto the master  
on port 9989 (or whatever port the master is running with)?

Double check the master.cfg file and make sure the address and port  
are correct on both sides.  Also make sure you don't have a pesky  
firewall, or you'll need to run the master on port 80 or something  
like that.


_Mark

On Feb 14, 2007, at 7:12 PM, Mary Fernandez wrote:

>
> Greetings,
>
> I have two very basic questions about BuildBot
> configuration problems that hopefully someone
> can answer easily.
>
> Thanks for any help in advance!
> -Mary
>
> General config info:
> buildbot 0.7.5
> Twisted 2.0.1
> CVSToys 1.0.10
> (CVSToys did not compile against Twisted 2.5, so I backed
> up to 2.0, which was in the same era as the CVSToys release)
>
> Problem #1: SMTP error when using mail.mailNotifier
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Configuration: FreshCVS, a buildbot master, and
> a buildbot slave are all running on the same machine.
>
> What happens: On a commit, FreshCVS sends mail to
> me (successfully) and also triggers a PBService event,
> which in turn, triggers the build master, which contacts
> the slave.  The slave runs the job, returns the result to the build
> master, which attempts to send a mail notification.
>
> Results in following error in twistd.log:
>
> [Uninitialized] SMTP Client retrying server. Retry: 1
> [Uninitialized] Unhandled error in Deferred:
> [Uninitialized] Traceback (most recent call last):
>    Failure: twisted.internet.error.ConnectionRefusedError:
>        Connection was refused by other side: 111: Connection refused.
>
> I was surprised, because FreshCVS's email succeeded
> so I expected BuildBot's to as well.
>
> The difference is that FreshCVS's mail notifier
> invokes /usr/bin/sendmail explicitly as a shell command,
> whereas BuildBot uses the twisted.mail.smtp object.
>
> I'm guessing that sendmail on this machine is configured
> in some way that ends up refusing connections from Twisted.
> Has anyone ever seen this before?  Any suggestions?
>
> Problem #2: Slave inside firewall cannot connect to master
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Configuration: FreshCVS and buildbot master are on machine
> outside firewall.  buildbot slave is on machine inside
> firewall (behind NAT)
>
> What happens: I can SSH from slave machine to master
> machine, check out source, and build successfully on the
> slave.   But when I try to start the slave daemon, it never
> connects to the master:
>
> [Uninitialized] <twisted.internet.tcp.Connector instance at  
> 0xb7b3e18c>
> will retry in 2 seconds
>
> Running buildbot debugclient gives a bit more info:
>
>  [Failure instance: Traceback (failure with no frames):
>  twisted.internet.error.ConnectError: An error occurred while
>  connecting: 113: No route to host.
>
> I'm guessing that this is the error when the daemon starts up.
> There's obviously a route to the host, because SSH works.
> Could this be due to incorrect address translation from the
> master back to the slave?
>
> Any ideas are greatly appreciated.
> -- 
> Mary Fernandez <mff at research.att.com>
> AT&T Labs - Research
>
>
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