6:30 a.m.
Heya,
I'm trying to write some docs for setting up High Availability (HA) with
RDO. I should note that Fabio Dinitto did most of the work related to
HA and he has some notes here[1][2].
I'm trying to make them useful for RDO users. Deriving from Fabio's
work, I've posted Nova, Neutron, Cinder, Glance, Keystone docs
here[3][4][5][6][7]. AIUI, these configurations are primarily based on
Havana-based setup, and may need some further tweaks if these are being
used for IceHouse-based setups.
Fabio and other folks who have more HA knowledge, please comment and
correct me if I said something wrong.
[1] https://github.com/fabbione/rhos-ha-deploy.git
[2] http://openstack.redhat.com/HA_Architecture
[3] http://openstack.redhat.com/Setting-up-HA-of-Nova
[4] http://openstack.redhat.com/Setting-up-HA-of-Neutron
[5] http://openstack.redhat.com/Setting-up-HA-of-Cinder
[6] http://openstack.redhat.com/Setting-up-HA-of-Glance
[7] http://openstack.redhat.com/Setting-up-HA-of-Keystone
--
/kashyap
8:37 a.m.
On Mon, Apr 21, 2014 at 05:00:15PM +0530, Kashyap Chamarthy wrote:
Heya,
I'm trying to write some docs for setting up High Availability (HA) with
RDO. I should note that Fabio Dinitto did most of the work related to
HA and he has some notes here[1][2].
I'm trying to make them useful for RDO users. Deriving from Fabio's
work, I've posted Nova, Neutron, Cinder, Glance, Keystone docs
here[3][4][5][6][7]. AIUI, these configurations are primarily based on
Havana-based setup, and may need some further tweaks if these are being
used for IceHouse-based setups.
Fabio and other folks who have more HA knowledge, please comment and
correct me if I said something wrong.
Are you intentionally leaving out HAProxy? This was a core component
of the HA architecture we came up with.
Ryan
[1] https://github.com/fabbione/rhos-ha-deploy.git
[2] http://openstack.redhat.com/HA_Architecture
[3] http://openstack.redhat.com/Setting-up-HA-of-Nova
[4] http://openstack.redhat.com/Setting-up-HA-of-Neutron
[5] http://openstack.redhat.com/Setting-up-HA-of-Cinder
[6] http://openstack.redhat.com/Setting-up-HA-of-Glance
[7] http://openstack.redhat.com/Setting-up-HA-of-Keystone
--
/kashyap
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8:49 a.m.
On Mon, Apr 21, 2014 at 08:37:47AM -0500, Ryan O'Hara wrote:
On Mon, Apr 21, 2014 at 05:00:15PM +0530, Kashyap Chamarthy wrote:
> Heya,
>
> I'm trying to write some docs for setting up High Availability (HA) with
> RDO. I should note that Fabio Dinitto did most of the work related to
> HA and he has some notes here[1][2].
>
> I'm trying to make them useful for RDO users. Deriving from Fabio's
> work, I've posted Nova, Neutron, Cinder, Glance, Keystone docs
> here[3][4][5][6][7]. AIUI, these configurations are primarily based on
> Havana-based setup, and may need some further tweaks if these are being
> used for IceHouse-based setups.
>
> Fabio and other folks who have more HA knowledge, please comment and
> correct me if I said something wrong.
Are you intentionally leaving out HAProxy?
No, I didn't. It's just an in-progress work, so it'll be added too. By
HAProxy I presume you're referring to this[1]. It'll also be added to
the wikis.
I'll try to make a high-level document which will include references to
all the wiki pages.
/kashyap
This was a core component
of the HA architecture we came up with.
[1]
https://github.com/fabbione/rhos-ha-deploy/blob/master/rhos4/mrgcloud-set...
--
/kashyap
1:26 a.m.
On Mon, Apr 21, 2014 at 07:19:46PM +0530, Kashyap Chamarthy wrote:
On Mon, Apr 21, 2014 at 08:37:47AM -0500, Ryan O'Hara wrote:
> On Mon, Apr 21, 2014 at 05:00:15PM +0530, Kashyap Chamarthy wrote:
[. . .]
> Are you intentionally leaving out HAProxy?
No, I didn't. It's just an in-progress work, so it'll be added too.
Here we go -- http://openstack.redhat.com/Setting-up-HAProxy-Load-Balancer
Please feel free to correct/comment if you see something off the mark.
I'll try to make a high-level document which will include
references to
all the wiki pages.
http://openstack.redhat.com/Setting-up-High-Availability
--
/kashyap
8:34 a.m.
On Tue, Apr 22, 2014 at 11:56:49AM +0530, Kashyap Chamarthy wrote:
On Mon, Apr 21, 2014 at 07:19:46PM +0530, Kashyap Chamarthy wrote:
> On Mon, Apr 21, 2014 at 08:37:47AM -0500, Ryan O'Hara wrote:
> > On Mon, Apr 21, 2014 at 05:00:15PM +0530, Kashyap Chamarthy wrote:
[. . .]
> > Are you intentionally leaving out HAProxy?
>
> No, I didn't. It's just an in-progress work, so it'll be added too.
Here we go -- http://openstack.redhat.com/Setting-up-HAProxy-Load-Balancer
Please feel free to correct/comment if you see something off the mark.
Need to set client/server timeouts for the qpid proxy. This should be
no less that 60, but depends on your qpid heartbeat. 120s is probably
a good starting point.
I think we need to collapse some of the wiki pages. There are now 2-3
docs describing how to use haproxy with OpenStack.
> I'll try to make a high-level document which will include
references to
> all the wiki pages.
http://openstack.redhat.com/Setting-up-High-Availability
OK. There is also an old(er) doc about how to do this which is
probably obsolete.
Ryan
10:29 a.m.
On Tue, Apr 22, 2014 at 08:34:58AM -0500, Ryan O'Hara wrote:
On Tue, Apr 22, 2014 at 11:56:49AM +0530, Kashyap Chamarthy wrote:
> On Mon, Apr 21, 2014 at 07:19:46PM +0530, Kashyap Chamarthy wrote:
> > On Mon, Apr 21, 2014 at 08:37:47AM -0500, Ryan O'Hara wrote:
> > > On Mon, Apr 21, 2014 at 05:00:15PM +0530, Kashyap Chamarthy wrote:
>
> [. . .]
>
> > > Are you intentionally leaving out HAProxy?
> >
> > No, I didn't. It's just an in-progress work, so it'll be added
too.
>
> Here we go -- http://openstack.redhat.com/Setting-up-HAProxy-Load-Balancer
>
> Please feel free to correct/comment if you see something off the mark.
One additional comment. The horizon proxy should use http mode and
insert a cookie for persistence. The load balancer host group in
astapor currently does this.
Ryan
Need to set client/server timeouts for the qpid proxy. This should
be
no less that 60, but depends on your qpid heartbeat. 120s is probably
a good starting point.
I think we need to collapse some of the wiki pages. There are now 2-3
docs describing how to use haproxy with OpenStack.
> > I'll try to make a high-level document which will include references to
> > all the wiki pages.
>
> http://openstack.redhat.com/Setting-up-High-Availability
OK. There is also an old(er) doc about how to do this which is
probably obsolete.
Ryan
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12:41 p.m.
On Tue, Apr 22, 2014 at 08:34:58AM -0500, Ryan O'Hara wrote:
On Tue, Apr 22, 2014 at 11:56:49AM +0530, Kashyap Chamarthy wrote:
[. . .]
> Please feel free to correct/comment if you see something off the
mark.
Need to set client/server timeouts for the qpid proxy. This should be
no less that 60, but depends on your qpid heartbeat. 120s is probably
a good starting point.
/me hasn't configured haproxy before, just wondering, I assume this is
section in haproxy.conf you're referring to where I set the qpid
timeout:
[. . .]
frontend vip-qpid
bind 192.168.16.201:5672
default_backend qpid-vms
[. . .]
I think we need to collapse some of the wiki pages. There are now 2-3
docs describing how to use haproxy with OpenStack.
Can you please post them here if you have them handy?
> > I'll try to make a high-level document which will
include
> > references to all the wiki pages.
>
> http://openstack.redhat.com/Setting-up-High-Availability
OK. There is also an old(er) doc about how to do this which is
probably obsolete.
Yeah, if you find them, it'd be useful to mark them as obsolete, just to
avoid confusion.
Thanks for the comments, Ryan.
--
/kashyap
12:55 p.m.
On Tue, Apr 22, 2014 at 11:11:29PM +0530, Kashyap Chamarthy wrote:
On Tue, Apr 22, 2014 at 08:34:58AM -0500, Ryan O'Hara wrote:
> On Tue, Apr 22, 2014 at 11:56:49AM +0530, Kashyap Chamarthy wrote:
[. . .]
> > Please feel free to correct/comment if you see something off the mark.
>
> Need to set client/server timeouts for the qpid proxy. This should be
> no less that 60, but depends on your qpid heartbeat. 120s is probably
> a good starting point.
/me hasn't configured haproxy before, just wondering, I assume this is
section in haproxy.conf you're referring to where I set the qpid
timeout:
[. . .]
frontend vip-qpid
bind 192.168.16.201:5672
default_backend qpid-vms
[. . .]
Yes. That is half of it, at least. The default client/server timeout
is 10s, set in the "defaults" section. You can override that per
proxy. You want the client timeout in the frontend and the server
timeout in the backend. Actually, the mysql proxy in your wiki page
does this, setting the timeouts to 90s.
> I think we need to collapse some of the wiki pages. There are
now 2-3
> docs describing how to use haproxy with OpenStack.
Can you please post them here if you have them handy?
This is the one I wrote a while back. It is desperately in need of an
update.
http://openstack.redhat.com/Load_Balance_OpenStack_API
> > > I'll try to make a high-level document which will
include
> > > references to all the wiki pages.
> >
> > http://openstack.redhat.com/Setting-up-High-Availability
>
> OK. There is also an old(er) doc about how to do this which is
> probably obsolete.
Yeah, if you find them, it'd be useful to mark them as obsolete, just to
avoid confusion.
This is what I was thinking of:
http://openstack.redhat.com/RDO_HighlyAvailable_and_LoadBalanced_Control_...
Thanks for the comments, Ryan.
Sure thing.
Ryan
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