On Tue, Feb 04, 2014 at 12:28:31PM -0500, John Eckersberg wrote: > (In the spirit of "Concerning Hobbits") Thanks for kicking off this thread. > Ryan O'Hara and I have been investigating RabbitMQ as it pertains to RDO > recently. There has been a lot of discussion on several disparate > threads, so I wanted to try and capture it on the list for the benefit > of everyone. > > Ryan has been working on getting RabbitMQ running in a multi-node HA > configuration. I won't steal his thunder, and he can speak to it better > than I can, so I'll defer to him on the details. Right now I have a 3-node RabbitMQ cluster with mirrored queues. I also put haproxy in front of this cluster and pointed all relevant OpenStack services at the virtual IP address. This seems to work well so far. Details instructions coming soon. > As for me, I've been working on el7 support and bug squashing along the > way. > > The first bug[1] causes the daemon to load incredibly slow, or outright > fail by timing out. This is due to the SELinux policy disallowing > name_bind on ports lower than 32768. RabbitMQ tries to name_bind to a > port starting at 10000, and increments if it fails. So if you have > SELinux in enforcing mode, you'll get 22768 AVC denials in the log > before it finally starts. > > The second bug[2] causes the daemon to intermittently fail to start due > to a race condition in the creation of the erlang cookie file. This > happens only the first time the service starts. Really this is an > Erlang bug, but there's a workaround for the RabbitMQ case. > > I've submitted patches for both issues. Until those get merged in, I've > rebuilt[3] RabbitMQ for F20 which includes the fixes. Awesome. > Beyond bugs, I've also built out RabbitMQ and all the build/runtime > dependencies for el7. I have a yum repo[4] on my fedorapeople page > containing all the bits. This is all the stuff that is presently > missing from EPEL7. In time, I would hope the maintainers build all > this stuff, but for now it'll work for testing. You will also need the > EPEL 7 Beta repository[5] enabled. > > As a side note, I built everything using mock with a local override repo > on my workstation. I've not used copr before but it seems relevant to > this sort of thing, so if it's any benefit I'll look to rebuilt the el7 > stack there for easier consumption. > > Hopefully this helps get the discussion into one place, and provide a > baseline for further investigation by everyone interested in RabbitMQ. John and I will be putting all of this in a wiki page on the RDO website in the very near future. I'll send email to the list when it is ready to be reviewed. Ryan > John. > > --- > [1] Is really two bugzillas, but the same bug: > [1a] https://bugzilla.redhat.com/show_bug.cgi?id=998682 > [1b] https://bugzilla.redhat.com/show_bug.cgi?id=1032595 > [2] https://bugzilla.redhat.com/show_bug.cgi?id=1059913 > [3] http://jeckersb.fedorapeople.org/rabbitmq-server-3.1.5-3.fc20.noarch.rpm > [4] http://jeckersb.fedorapeople.org/rabbitmq-el7/ > [5] http://dl.fedoraproject.org/pub/epel/beta/7/x86_64/ > > _______________________________________________ > Rdo-list mailing list > Rdo-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/rdo-list _______________________________________________ Rdo-list mailing list Rdo-list(a)redhat.com https://www.redhat.com/mailman/listinfo/rdo-list

On 02/06/2014 11:20 AM, Ryan O'Hara wrote: > A new wiki page is available here: > > http://openstack.redhat.com/RabbitMQ Excellent stuff guys :) So... next step would be working with the Packstack folks to get RabbitMQ as an option for basic Packstack configs (not HA stuff, just vanilla RabbitMQ) And then beyond that, I know there is some work going on around HA deployments via Foreman. Probably we should make the HA RabbitMQ configuration that Ryan outlined an option for Foreman deployments? Perry

On the packstack work, I'd like to ask if there is a significant amount of non-puppet work needed to make the rabbitmq configuration happen let's have some discussion around on the list about it.

On Thu, Feb 06, 2014 at 08:05:30PM -0500, Mike Orazi wrote: > On 02/06/2014 08:00 PM, Perry Myers wrote: >> On 02/06/2014 11:20 AM, Ryan O'Hara wrote: >>> A new wiki page is available here: >>> >>> http://openstack.redhat.com/RabbitMQ >> >> Excellent stuff guys :) >> >> So... next step would be working with the Packstack folks to get >> RabbitMQ as an option for basic Packstack configs (not HA stuff, just >> vanilla RabbitMQ) >> >> And then beyond that, I know there is some work going on around HA >> deployments via Foreman. Probably we should make the HA RabbitMQ >> configuration that Ryan outlined an option for Foreman deployments? > > +1, great work guys! > > On the packstack work, I'd like to ask if there is a significant amount > of non-puppet work needed to make the rabbitmq configuration happen > let's have some discussion around on the list about it. The packstack guys can give an official answer, but I don't think it would require much logic. I think John's original write-up showed that you can drop RabbitMQ in and simply replace the rpc_driver parameter in a handful of config files (glance being a slight deviation).

I just want to know how long the packstack can support RabbitMQ?