Gluster users - Feb 2020 - recommendation: gluster version upgrade and/or OS dist-upgrade

Hello,

i currently have a replicate 3 setup, gluster version 5.11 and debian
stretch. In the next weeks i want to migrate to gluster version 6.x
and upgrade the OS to debian buster.

So... any recommendation of what to do first? First upgrade gluster or
the operating system?


Thx,
Hubert

ah, the reason why i was asking: i wanted to do the dist-upgrade and
the installation of the debian buster glusterfs-packages in one step,
which led me to the following error message:

Errors were encountered while processing:
 /tmp/apt-dpkg-install-FRTZ1D/139-glusterfs-common_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/140-libglusterfs0_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/141-libgfxdr0_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/142-libgfrpc0_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/143-libgfapi0_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/144-libgfchangelog0_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/145-libgfdb0_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/150-libglusterfs-dev_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/163-glusterfs-client_5.10-1_amd64.deb
 /tmp/apt-dpkg-install-FRTZ1D/164-glusterfs-server_5.10-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

so i first did the dist-upgrade; but the buster-glusterfs-packages
didn't want to install again, so i had to remove the "old"
glusterfs
packages and install the buster packages. Strange.

Am Di., 18. Feb. 2020 um 08:51 Uhr schrieb Hu Bert <revirii at
googlemail.com>:
>
> Hello,
>
> i currently have a replicate 3 setup, gluster version 5.11 and debian
> stretch. In the next weeks i want to migrate to gluster version 6.x
> and upgrade the OS to debian buster.
>
> So... any recommendation of what to do first? First upgrade gluster or
> the operating system?
>
>
> Thx,
> Hubert

Am Di., 18. Feb. 2020 um 08:51 Uhr schrieb Hu Bert <revirii at
googlemail.com>:
> Hello,
>
> i currently have a replicate 3 setup, gluster version 5.11 and debian
> stretch. In the next weeks i want to migrate to gluster version 6.x
> and upgrade the OS to debian buster.
>
> So... any recommendation of what to do first? First upgrade gluster or
> the operating system?
>
Hello Hubert,

i needed to do this a while ago, in my case it was a Proxmox-Cluster based
on the Debian Stretch upgrade to Buster while also upgrading gluster up to
v7. The way i did it:

1. i had the "normal" stretch gluster packages installed (3.8) not the
backports (4.1), so i first needed to upgrade gluster to 3.12 and move on
from there (see [1]). You may be able to skip the next step.
2. i activated the old-releases gluster repos for 3.12 [2] and upgrade from
3.8(debian) to 3.12(gluster)
3. after this i switched to the "latest" repo and upgraded to v7 while
still running stretch
4. then i upgraded stretch to buster, while gluster repos where commented
out
5. after the dist-upgrade i switched the gluster repos to the buster ones
and activated them again

I write this all from memory as i am not at work atm, but this should be
it. I also can say, that i did all the upgrades online (couldn't afford to
stop all the vm's) - and to my surprise everything went without a big
problem.

Good luck

Mika

[1] https://docs.gluster.org/en/latest/Upgrade-Guide/upgrade_to_7/ or
https://docs.gluster.org/en/latest/Upgrade-Guide/upgrade_to_6/
[2]
https://download.gluster.org/pub/gluster/glusterfs/old-releases/3.12/LATEST/Debian/9/
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