at work atm but: http://lists.xen.org/archives/html/xen-devel/2011-09/msg01461.htmlOn Thu, Oct 17, 2013 at 8:26 AM, Damien Regad <firstname.lastname@example.org> wrote:On 2013-10-17 07:56, Victor Boctor wrote:Not proven, just a suspicion.
> Paul has suggested that we upgrade server to a new version of the OS /
> kernel due to a kernel bug that is causing the hangs (is this proven?).
The only thing which I think would be nice to have atm, is a more recent
> Are others aware of any other work that we need to get done on the server?
version of Publican (docbook building tool). The one we have in 10.04
(1.0~20090927-2) is really outdated and sometimes causes issues (build
warnings or errors) when documentation build scripts run. Precise comes
with 2.8-2 which I use on my dev box and works fine.
> causing us downtime, creating work, etc..
> The other thing to discuss is the timing. I would rather if we stay
> focused for the time being on getting 1.3.0a1 out of the door. I don't
> want us distracted with environmental issues that are not critical
> *** DAMIEN REGAD ***
>Let me come out of my silence then ;-)
> Silence :) but he agreed based on follow up discussion.
In light of the recent arguments put forward by Paul wrt some xen bug in
the kernel being a potential reason for the frequent crashes we're
suffering (it is not proven that it's indeed the root cause btw), I
think it would be worth a shot to try an upgrade now. I think
12.04LTS/precise has been out long enough that major issues would have
been sorted by now.
That said, except for the publican issue I mentioned above, there are no
major immediate benefits that I can see, other than running generally
more recent software - which can also be a shortcoming as we could be
introducing new issues ;-).
With regards to the upgrade process, I do not recommend upgrading
in-place, due to the long potential downtime and risk of failure
As I was saying in some other e-mail, I think we should instead work on
a copy of mantisbt.org as a test platform. That means running 2 servers
concurrently (assuming Linode allows us to do that), the live site and a
test upgrade one. If the upgrade proves successful, then we can bring
mantisbt.org offline, copy the databases over to the upgraded box then
switch the images.
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