[Gluster-users] back to problems: gluster 3.5.4, qemu and debian 8

[Roman]

Hi!
Thanks for reply.

https://access.redhat.com/documentation/en-US/Red_Hat_Storage/2.0/html/Quick_Start_Guide/chap-Quick_Start_Guide-Virtual_Preparation.html
reading this, RH recommends to keep read-ahead off for gluster volumes used
for VM-s.

2015-07-18 18:56 GMT+03:00 Michael Mol <mikemol at gmail.com>:

> I think you'll find it's the write-behind that was killing you.
> Write-behind opens you up to a number of data consistency issues, and I
> strongly disrecommend it unless you have a rock-solid infrastructure from
> the writer all the way to the disk the data ultimately sits on.
>
> I bet that if you re-enabled read-ahead, you won't see the problem. Just
> leave write-behind off.
>
> On Sat, Jul 18, 2015, 10:44 AM Roman <romeo.r at gmail.com> wrote:
>
> solved after I've added (thanks to Niels de Vos) these options to the
> volumes:
>
> performance.read-ahead: off
>
> performance.write-behind: off
>
>
> 2015-07-15 17:23 GMT+03:00 Roman <romeo.r at gmail.com>:
>
> hey,
>
> I've updated the bug, if some1 has some ideas - share plz.
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1242913
>
>
> 2015-07-14 19:14 GMT+03:00 Kaushal M <kshlmster at gmail.com>:
>
>  Just a wild guess. What is the filesystem used for the debian 8
> installation? It could be the culprit.
>
> On Tue, Jul 14, 2015 at 7:27 PM, Roman <romeo.r at gmail.com> wrote:
> > I've done this way: installed debian8 on local disks using netinstall
> iso,
> > created a template of it and then cloned (full clone) it to glusterfs
> > storage backend. VM boots and runs fine... untill I start to install
> > something massive (DE ie). Last time it was mate failed to install due to
> > python-gtk2 package problems (complaing that it could not compile it)
> >
>
> > 2015-07-14 16:37 GMT+03:00 Scott Harvanek <scott.harvanek at login.com>:
> >>
> >> What happens if you install from a full CD and not a net-install?
> >>
> >> Limit the variables.  Currently you are relying on remote mirrors and
> >> Internet connectivity.
> >>
> >> It's either a Proxmox or Debian issue, I really don't think it's
> Gluster.
> >> We have hundreds of Jessie installs running on GlusterFS backends.
> >>
> >> --
> >> Scott H.
> >> Login, LLC.
> >>
> >>
> >>
> >> Roman
> >> July 14, 2015 at 9:30 AM
> >> Hey,
> >>
> >> thanks for reply.
> >> If it would be networking related, it would affect everything. But it is
> >> only debian 8 which won't install.
> >> And yes, i did iperf test between gluster and proxmox nodes. Its ok.
> >> Installation fails on every node, where i try to install d8. Sometimes
> it
> >> goes well (today 1 of 6 tries was fine). Other distros install fine.
> >> Sometimes installation process finishes, but VM won't start, just hangs
> >> with errors like in this attached.
> >>
> >>
> >>
> >>
> >> --
> >> Best regards,
> >> Roman.
> >> Scott Harvanek
> >> July 14, 2015 at 9:17 AM
> >> We don't have this issue, I'll take a stab tho-
> >>
> >> Have you confirmed everything is good on the network side of things?
> >> MTU/Loss/Errors?
> >>
> >> Is your inconsistency linked to one specific brick? Have you tried
> running
> >> a replica instead of distributed?
> >>
> >>
> >>
> >> _______________________________________________
> >> Gluster-users mailing list
>
> >> Gluster-users at gluster.org
> >> http://www.gluster.org/mailman/listinfo/gluster-users
> >> Roman
> >> July 14, 2015 at 6:38 AM
> >> here is one of the errors example. its like files that debian installer
> >> copies to the virtual disk that is located on glusterfs storage are
> getting
> >> corrupted.
> >> in-target is /dev/vda1
> >>
> >>
> >>
> >>
> >>
> >> --
> >> Best regards,
> >> Roman.
> >> _______________________________________________
> >> Gluster-users mailing list
> >> Gluster-users at gluster.org
> >> http://www.gluster.org/mailman/listinfo/gluster-users
> >> Roman
> >> July 14, 2015 at 4:50 AM
> >> Ubuntu 14.04 LTS base install and then mate install were fine!
> >>
> >>
> >>
> >>
> >> --
> >> Best regards,
> >> Roman.
> >> _______________________________________________
> >> Gluster-users mailing list
> >> Gluster-users at gluster.org
> >> http://www.gluster.org/mailman/listinfo/gluster-users
> >> Roman
> >> July 13, 2015 at 7:35 PM
> >> Bah... the randomness of this issue is killing me.
> >> Not only HA volumes are affected. Got an error during installation of d8
> >> with mate (on python-gtk2 pkg) on Distributed volume also.
> >> I've checked the MD5SUM of installation iso, its ok.
> >>
> >> Shortly after that on the same VE node I installed D7 with Gnome without
> >> any problem on the HA glusterf volume.
> >>
> >> And on the same VE node I've installed D8 with both Mate and Gnome using
> >> local storage disks without problems. There is a bug somewhere in
> gluster or
> >> qemu... Proxmox uses RH kernel btw:
> >>
> >> Linux services 2.6.32-37-pve
> >> QEMU emulator version 2.2.1
> >> glusterfs 3.6.4
> >>
> >> any ideas?
> >> I'm ready to help to investigate this bug.
> >> When sun will shine, I'll try to install latest Ubuntu also. But now I'm
> >> going to sleep.
> >>
> >>
> >>
> >>
> >> --
> >> Best regards,
> >> Roman.
> >> _______________________________________________
> >> Gluster-users mailing list
> >> Gluster-users at gluster.org
> >> http://www.gluster.org/mailman/listinfo/gluster-users
> >>
> >>
> >
> >
> >
> > --
> > Best regards,
> > Roman.
> >
> > _______________________________________________
> > Gluster-users mailing list
> > Gluster-users at gluster.org
> > http://www.gluster.org/mailman/listinfo/gluster-users
>
>
>
> --
>
> Best regards,
> Roman.
>
>
>
> --
>
> Best regards,
> Roman.
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://www.gluster.org/mailman/listinfo/gluster-users
>
>
>


-- 
Best regards,
Roman.
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