[Openstack] Building Swift cluster wiuth Ubuntu VM's

Pete Zaitcev zaitcev at redhat.com
Tue Feb 4 18:34:38 UTC 2014


On Sun, 2 Feb 2014 20:08:02 -0800
Adam Lawson <alawson at aqorn.com> wrote:

> (http://docs.openstack.org/developer/swift/howto_installmultinode.html)
> 
> I'm running into issues where the instructions start to get really
> hazy/unclear after step #4 in Configure Proxy Server.

Woops, there was a bug in numbering of steps :-)
https://review.openstack.org/71051

> It says in step #5 to
> run a series of commands  for each device listed in "/srv/node" but I
> haven't seen a step prior to step #5 that populates that directory with
> devices.

Well it's not important if the directory is already populated.
The docs actually mean the real devices you plan to use -- on each node,
not just on proxy.

> Thoughts?

You should already know what nodes have what devices. Note that device
namspace is flat. So, write something like this on a piece of paper:

NODE  device   zone   Remark

vm1                   vm1 is proxy, has no devices
vm2   xdb        1
vm2   xdc        2
vm3   xdb        3
vm3   xdc             unused, just because
vm4   xdb        4
vm4   xdc        5

If you want to stuff them under /var/Monsoon, that's up to you.
Note, however, that utilities that have to guess where you hide
your devices may not work completely in such case (see swift-get-nodes).

You could get better advice by asking on openstack-operators list.

-- P




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