[Labs-l] Network changes to Labs

[Ryan Lane]

On Mon, Mar 4, 2013 at 4:52 PM, Ryan Lane <rlane at wikimedia.org> wrote:

> Today we bonded three NICs on the network node to increase network
> capacity between instances and resources outside of Labs (including
> glusterfs). This resulted in a short network outage while the router was
> reconfigured and again when we restarted the network services on the
> network node.
>
> If you had any bots that have issues with lost network connections, you'll
> need to restart them.
>
> We've made these changes for a couple reasons:
>
> 1. We were occasionally (but rarely) saturating the current link
> 2. This allows us to change the network driver we use on the virtual
> machines to the virtio driver, which changes the NICs from 100Mb to 1Gb.
>
> I've set virtio as the default for all new instance creations, and am in
> the process of changing the driver for existing instances. After I've
> changed the driver, instances will need to be rebooted for this to take
> affect. I'll send out another mail when this has occurred.
>
>
All instances have now been reconfigured to use the virtio driver. When you
are ready to have this enabled, just reboot your instance.

- Ryan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.wikimedia.org/pipermail/labs-l/attachments/20130304/09281c76/attachment-0001.html>