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Bug#783196: marked as done (release-notes: please add notes on upgrading Ganeti clusters)

Your message dated Fri, 24 Apr 2015 16:47:19 +0200
with message-id <553A5777.7030109@thykier.net>
and subject line Re: Bug#783196: Updated patch
has caused the Debian Bug report #783196,
regarding release-notes: please add notes on upgrading Ganeti clusters
to be marked as done.

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If this is not the case it is now your responsibility to reopen the
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-- 
783196: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=783196
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: release-notes
Severity: normal

Dear Maintainer,

Bug #783186 affects Wheezy to Jessie upgrades and should ideally be 
documented in the release notes. The attached patch adds the relevant 
paragraph, together with a paragraph with general notes on Ganeti 
cluster upgrades, to the release notes.

Regards,
Apollon

Index: en/issues.dbk
===================================================================
--- en/issues.dbk	(revision 10823)
+++ en/issues.dbk	(working copy)
@@ -932,4 +932,40 @@
     Perl by running <command>perl -V</command>.
   </para>
 </section>
+<section id="ganeti-upgrade-issues">
+  <title>Upgrade considerations for Ganeti clusters</title>
+
+  <section id="ganeti-upgrade-DRBD-UUIDs">
+    <!-- Wheezy to Jessie (#783186) -->
+    <title>Problem upgrading Ganeti clusters with DRBD-backed instances</title>
+    <para>
+       The version of <systemitem role="package">ganeti</systemitem> (2.12.0-3)
+       released with Jessie does not support migrations from installations
+       running 2.5 or earlier (including Wheezy) in cases where there are
+       instances with DRBD disks. It is hoped that this issue will be fixed
+       in a point release, and recommended that you do not upgrade affected
+       Ganeti clusters in the meantime. You can find more information about
+       this issue at <ulink url="&url-bts;783186">Debian Bug#783186</ulink>.
+    </para>
+  </section>
+  <section id="ganeti-upgrade-general">
+    <title>General notes on upgrading Ganeti clusters</title>
+    <para>
+       Ganeti does not support mixed-version clusters. As such, all of a
+       cluster's nodes must run the same version of <systemitem
+       role="package">ganeti</systemitem>. Also, depending on the hypervisor
+       used, instance live migrations between Wheezy and Jessie hypervisor
+       versions may not work.
+    </para>
+    <para>
+       The recommended procedure to upgrade a Ganeti cluster from Wheezy to
+       Jessie is to stop all instances, upgrade and reboot all nodes, upgrade
+       the Ganeti cluster configuration using <systemitem
+       role="package">ganeti</systemitem>'s <command>cfgupgrade</command> and
+       then start the instances again. This will ensure that all instances run
+       with Jessie's hypervisor version and that all nodes run the same
+       versions of Ganeti and DRBD.
+    </para>
+  </section>
+</section>
 </chapter>

--- End Message ---
--- Begin Message --- 
On 2015-04-24 09:31, Apollon Oikonomopoulos wrote:
> Control: tags -1 patch
> 
> Hi,
> 
> This is an updated version of the patch, clarifying cluster upgrades.
> 
> Regards,
> Apollon
> 

Thanks, applied as-is.

~Niels

--- End Message ---
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