Yes, this is my observation so far. On Sep 9, 2017 13:32, "Gionatan Danti" <g.danti at assyoma.it> wrote:> Il 09-09-2017 09:09 Pavel Szalbot ha scritto: > >> Sorry, I did not start the glusterfsd on the node I was shutting >> yesterday and now killed another one during FUSE test, so it had to >> crash immediately (only one of three nodes were actually up). This >> definitely happened for the first time (only one node had been killed >> yesterday). >> >> Using FUSE seems to be OK with replica 3. So this can be gfapi related >> or maybe rather libvirt related. >> >> I tried ioengine=gfapi with fio and job survived reboot. >> >> >> -ps >> > > So, to recap: > - with gfapi, your VMs crashes/mount read-only with a single node failure; > - with gpapi also, fio seems to have no problems; > - with native FUSE client, both VMs and fio have no problems at all. > > Is it correct? > Thanks. > > -- > Danti Gionatan > Supporto Tecnico > Assyoma S.r.l. - www.assyoma.it > email: g.danti at assyoma.it - info at assyoma.it > GPG public key ID: FF5F32A8 >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170909/c34e156f/attachment.html>
Well, that makes me feel better. I've seen all these stories here and on Ovirt recently about VMs going read-only, even on fairly simply layouts. Each time, I've responded that we just don't see those issues. I guess the fact that we were lazy about switching to gfapi turns out to be a potential explanation <grin> -wk On 9/9/2017 6:49 AM, Pavel Szalbot wrote:> Yes, this is my observation so far. > > On Sep 9, 2017 13:32, "Gionatan Danti" <g.danti at assyoma.it > <mailto:g.danti at assyoma.it>> wrote: > > > So, to recap: > - with gfapi, your VMs crashes/mount read-only with a single node > failure; > - with gpapi also, fio seems to have no problems; > - with native FUSE client, both VMs and fio have no problems at all. >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170909/4d76ea26/attachment.html>
lemonnierk at ulrar.net
2017-Sep-09 22:08 UTC
[Gluster-users] GlusterFS as virtual machine storage
Mh, not so sure really, using libgfapi and it's been working perfectly fine. And trust me, there had been A LOT of various crashes, reboots and kill of nodes. Maybe it's a version thing ? A new bug in the new gluster releases that doesn't affect our 3.7.15. On Sat, Sep 09, 2017 at 10:19:24AM -0700, WK wrote:> Well, that makes me feel better. > > I've seen all these stories here and on Ovirt recently about VMs going > read-only, even on fairly simply layouts. > > Each time, I've responded that we just don't see those issues. > > I guess the fact that we were lazy about switching to gfapi turns out to > be a potential explanation <grin> > > -wk > > > > > > > On 9/9/2017 6:49 AM, Pavel Szalbot wrote: > > Yes, this is my observation so far. > > > > On Sep 9, 2017 13:32, "Gionatan Danti" <g.danti at assyoma.it > > <mailto:g.danti at assyoma.it>> wrote: > > > > > > So, to recap: > > - with gfapi, your VMs crashes/mount read-only with a single node > > failure; > > - with gpapi also, fio seems to have no problems; > > - with native FUSE client, both VMs and fio have no problems at all. > > >> _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users-------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: Digital signature URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170909/9c410552/attachment.sig>