On 02-Sep-2014, at 5:07 pm, Francois Gaudreault <fgaudrea...@cloudops.com> 
wrote:
> I see. Well, I think we were impacted by that too, and we made the decision 
> to move on 4.4.1-snap (even if it's technically less stable?) and then 
> upgrade to 4.4.1 GA (next week?)
>
> I personally don't think pulling back DB changes in lower releases is a good 
> idea :S
>
> But that's only my opinion :)

I raised a concrete issue regarding 4.3.1/4.4.1 release and I would like to 
stick to that only. I understand there are too many numbers, versions and 
branches to follow, so please if you can try to understand the issue;

This issue — https://issues.apache.org/jira/browse/CLOUDSTACK-6756 requires 
that there are some extra columns in the database to do book keeping when 
delete ips so you don’t actually delete db/table rows.

The issue above is fixed in an upgrade path from 4.3.0 to 4.4.0:
https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;a=blobdiff;f=setup/db/db/schema-430to440.sql;h=226260804523c79e3ce3cfa3c407b5ac698d749c;hp=3b525c41a1befd94c5ffc324c357b566606a97d0;hb=ce6a53e;hpb=d0f806b3a486c58b033083fc57f39dd686e31750

But, we already have 4.4.0 release and db upgrade paths are always in the next 
release versions.

So, there is no upgrade path from 4.3.1 to 4.4.0; as 4.3.1 version does not 
care about 4.4.0 schema changes. There is only an upgrade path from 4.3.0 to 
4.3.1. So, the limitation is that people won’t be able to upgrade from 4.3.1 to 
4.4.0, because 4.4.0 is already released.

If we release 4.4.1 before 4.3.1, we’ll have the same issue. So, we can put the 
fix from the JIRA issue on 4.3 branch so the issue is fixed for 4.3.1. The fix 
will be in the 4.3.0 to 4.3.1 upgrade path. And, if we release 4.4.1 after 
4.3.1, we can fix the upgrade path from 4.3.1 to 4.4.1 on 4.4 branch such that

The abstract issue is — we’ll have such issue in future, how do we fix it. I 
suggested — we make a separate tool that does (rolling) upgrades.

Regards,
Rohit Yadav
Software Architect, ShapeBlue
M. +41 779015219 | rohit.ya...@shapeblue.com
Blog: bhaisaab.org | Twitter: @_bhaisaab



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