Hi,
We have tested gluster 6 by running pg bench on a vm. Things are working fine.
Here are the results
https://github.com/ezio-auditore/gluster-pg-bench-test-results

There is a small blog regarding this which is yet to be published. You can check the preview.

https://ezio-auditore.github.io/devblog/gluster-3-12-vs-6-a-performance-oriented-overview

On Thu, May 9, 2019 at 8:03 PM Sandro Bonazzola <sbonazzo@redhat.com> wrote:

Il giorno ven 5 apr 2019 alle ore 12:56 Gobinda Das <godas@redhat.com> ha scritto:

Hi Simone,

 Kaustav has upgraded from gluster-3.12 to gluster-6 and done some tests like VM creation and some pg bench testing.

https://github.com/ezio-auditore/gluster-pg-bench-test-results

But yeah as you said will have to plan for end to end testing with fresh installation also.

Gobinda, Sahina, Kaustav, any update on this testing? Are we ok to go with pushing the switch to Gluster 6 to master?

One month passed and it's time to go on with this.

 

On Fri, Apr 5, 2019 at 3:31 PM Simone Tiraboschi <stirabos@redhat.com> wrote:

Hi,
according to https://bugzilla.redhat.com/show_bug.cgi?id=1673058 the network throughput usage increases by a x5 upgrading from Gluster 3.12 to Gluster 5.y.

This seems definitively problematic on our hyper-converged environments: I read more than one report where, over 1 Gbps network, sanlock could not be refreshed quickly enough and so killed the engine VM if not rebooted the host due to the watchdog.

This is probably due to the fact that, according to that bug, the network got completely saturated. 

Faster networks seems still fine.

https://bugzilla.redhat.com/show_bug.cgi?id=1673058  is probably going to be solved for Gluster 5.6.

On the other side we have https://bugzilla.redhat.com/1693998 about rebasing over Gluster 6 which seems not affected by that issue.

Do you have concrete plans about testing oVirt with Gluster 6?

thanks,

Simone

--

Thanks,

Gobinda

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--

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV

Red Hat EMEA

sbonazzo@redhat.com   

--

Thanks,

Kaustav Majumder