Gionatan Danti
2019-Jul-16 14:32 UTC
[Gluster-users] Graceful gluster server retire/poweroff
On 16/07/2019 15:27, Ravishankar N wrote:> Yes, if you simply pkill the gluster brick processes of the node before > switching it off, you won't observe the hang on the clients because they > will receive the disconnect notification immediately. But before that, > you would need to check if there are no pending heals etc. You can use > the script [1] which does all these checks in the graceful mode.Hi Ravi, thanks for your reply. I tried killing the glusterfsd process and I confirm that the client does not see any pause, indeed. I was thinking that during the shutdown procedure systemd would kill the processes by itself; which it *does*, but only if the glusterfsd.service is enabled/started. By default, the systemd service installed on CentOS 7 + Gluster 6.0 SIG does not start glusterfsd.service and so, in the shutdown phase, it does not stop it. Thanks very much for your information. -- 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
Strahil Nikolov
2019-Jul-17 15:20 UTC
[Gluster-users] Graceful gluster server retire/poweroff
Hi Ravi,
Can you clarify which script do you use ?Usually I rely on oVirt to shutdown the
system properly , but sometimes I have used
'/usr/share/glusterfs/scripts/stop-all-gluster-processes.sh' which kills
everything (including fuse mounts).
Best Regards,Strahil Nikolov?
? ???????, 16 ??? 2019 ?., 17:32:44 ?. ???????+3, Gionatan Danti <g.danti
at assyoma.it> ??????:
On 16/07/2019 15:27, Ravishankar N wrote:> Yes, if you simply pkill the gluster brick processes of the node before
> switching it off, you won't observe the hang on the clients because
they
> will receive the disconnect notification immediately. But before that,
> you would need to check if there are no pending heals etc. You can use
> the script [1] which does all these checks in the graceful mode.
Hi Ravi,
thanks for your reply. I tried killing the glusterfsd process and I
confirm that the client does not see any pause, indeed.
I was thinking that during the shutdown procedure systemd would kill the
processes by itself; which it *does*, but only if the glusterfsd.service
is enabled/started.
By default, the systemd service installed on CentOS 7 + Gluster 6.0 SIG
does not start glusterfsd.service and so, in the shutdown phase, it does
not stop it.
Thanks very much for your information.
--
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
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