[Buildbot-devel] Nine: support for upgrades

[Pierre Tardy]

I think a simple  approach would be to use the Json api on the old running
instance. This would avoid the pain of  unpicking objects with removed
classes.

As far as im concern, we ll take the 2 instances approaches during the
transition.
Le 22 janv. 2014 03:17, "Dustin J. Mitchell" <dustin at v.igoro.us> a écrit :

> On Tue, Jan 21, 2014 at 7:53 PM, William Deegan
> <bill at baddogconsulting.com> wrote:
> > I can pretty much guarantee that a few of my clients would balk at
> upgrading if they lose their history.
> > That said if it's important to them, then they can likely pay for my
> time to build the upgrade tool.
> > (Would it be a nightmare to create?)
> > Some of them like to keep it until they run out of disk space..
>
> I don't think it'd be a nightmare - just kind of unspecified and
> fiddly.  For example, logfiles must be unicode in nine, and they're
> just bytestrings in 0.8.x, so you'll have to apply an encoding.  It's
> the sort of thing that will probably be easier to get right for one or
> a few case than for the general case.  So, if you did end up writing
> it, it'd make a good *optional* addition to Buildbot - maybe in
> contrib, or protected by some --upgrade-pickles option to `buildbot
> upgrade-master`, and offering lots of "proceed with caution" warnings.
>
> Dustin
>
>
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