[Rdo-list] rdo-manager hostname issues with rabbitmq

[James Slagle]

On Thu, Apr 30, 2015 at 09:23:54AM -0400, Mohammed Arafa wrote:
> James
> 
> will the shortname also be added to the hosts file along with the fqdn?

We could. The patch I proposed does not however, it merely addresses the issues
I was seeing.

> 
> On Thu, Apr 30, 2015 at 9:03 AM, Hugh O. Brock <hbrock at redhat.com> wrote:
> 
> > On Thu, Apr 30, 2015 at 08:15:35AM -0400, James Slagle wrote:
> > > Hi, there were a few different threads related to rdo-manager and
> > encountering
> > > rabbitmq errors related to the hostname when installing the undercloud.
> > >
> > > I was able to reproduce a couple different issues, and in my environment
> > it
> > > came down to $HOSTNAME not matching the defined FQDN hostname. You could
> > > use hostnamectl to set a hostname, but that does not update $HOSTNAME in
> > your
> > > current shell.
> > >
> > > rabbitmq-env, which is sourced at the start of rabbitmq-server, reads the
> > > hostname from $HOSTNAME in some scenarios, and then uses that value to
> > define
> > > the rabbit node name. Therefore, if you have a mismatch between
> > $HOSTNAME and
> > > the actual FQDN, things can go off the rails with rabbitmq.
> > >
> > > I've tried to address this issue in this patch:
> > > https://review.gerrithub.io/#/c/232052/
> > >
> > > For the virt-setup, setting of the FQDN hostname and adding it to
> > /etc/hosts
> > > will now be done automatically, with the instack.localdomain used. The
> > hostname
> > > can always be redefined later if desired.
> > >
> > > For baremetal, I've added some notes to the docs to hopefully cover the
> > > requirements.
> > >
> > > --
> > > -- James Slagle
> > > --
> >
> > Good catch James. Hopefully this will unblock a number of folks who have
> > been hitting this.
> >
> > --Hugh
> >
> > --
> > == Hugh Brock, hbrock at redhat.com                                   ==
> > == Senior Engineering Manager, Cloud Engineering                   ==
> > == Tuskar: Elastic Scaling for OpenStack                           ==
> > == http://github.com/tuskar                                        ==
> >
> > "I know that you believe you understand what you think I said, but I’m
> > not sure you realize that what you heard is not what I meant."
> > --Robert McCloskey
> >
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> 
> 
> 
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> 
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--
-- James Slagle
--