Bug#783196: Updated patch
Control: tags -1 patch
Hi,
This is an updated version of the patch, clarifying cluster upgrades.
Regards,
Apollon
Index: en/issues.dbk
===================================================================
--- en/issues.dbk (revision 10823)
+++ en/issues.dbk (working copy)
@@ -932,4 +932,37 @@
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>
+ The recommended procedure to upgrade a Ganeti cluster from Wheezy's
+ <systemitem role="package">ganeti</systemitem> version (2.5.2-1) to
+ Jessie's (2.12.0-3) is to stop all instances and then upgrade and reboot
+ all nodes at once. 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>
+ <para>
+ Note that running a cluster with mixed 2.5 and 2.12 nodes is not
+ supported. Also note that, depending on the hypervisor, instance live
+ migrations may not work between Wheezy and Jessie hypervisor versions.
+ </para>
+ </section>
+</section>
</chapter>
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