[Gluster-users] Graceful shutdown doesn't stop all Gluster processes

Sun Feb 18 23:44:34 UTC 2024

This is the different scenario in which I was simply attempting to stop the gluster server for the expansion of the brick backend SAN LV, without needing to restart the entire physical server.

________________________________
From: Strahil Nikolov <hunter86_bg at yahoo.com>
Sent: 18 February 2024 1:43 PM
To: Aravinda <aravinda at kadalu.tech>; Anant Saraswat <anant.saraswat at techblue.co.uk>
Cc: ronny.adsetts at amazinginternet.com <ronny.adsetts at amazinginternet.com>; gluster-users at gluster.org <gluster-users at gluster.org>
Subject: Re: [Gluster-users] Graceful shutdown doesn't stop all Gluster processes

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Well,

you prepare the host for shutdown, right ? So why don't you setup systemd to start the container and shut it down before the bricks ?

Best Regards,
Strahil Nikolov

В петък, 16 февруари 2024 г. в 18:48:36 ч. Гринуич+2, Anant Saraswat <anant.saraswat at techblue.co.uk> написа:

Hi Strahil,

Yes, we mount the fuse to the physical host and then use bind mount to provide access to the container.

The same physical host also runs the gluster server. Therefore, when we stop gluster using 'stop-all-gluster-processes.sh' on the physical host, it kills the fuse mount and impacts containers accessing this volume via bind.

Thanks,

Anant

________________________________
From: Strahil Nikolov <hunter86_bg at yahoo.com>
Sent: 16 February 2024 3:51 PM
To: Anant Saraswat <anant.saraswat at techblue.co.uk>; Aravinda <aravinda at kadalu.tech>
Cc: ronny.adsetts at amazinginternet.com <ronny.adsetts at amazinginternet.com>; gluster-users at gluster.org <gluster-users at gluster.org>
Subject: Re: [Gluster-users] Graceful shutdown doesn't stop all Gluster processes

EXTERNAL: Do not click links or open attachments if you do not recognize the sender.

Hi Anant,

Do you use the fuse client in the container ?
Wouldn't it be more reasonable to mount the fuse and then use bind mount to provide access to the container ?

Best Regards,

Strahil Nikolov

>
> On Fri, Feb 16, 2024 at 15:02, Anant Saraswat
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> <anant.saraswat at techblue.co.uk> wrote:
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> Okay, I understand. Yes, it would be beneficial to include an option for skipping the client processes. This way, we could utilize the 'stop-all-gluster-processes.sh' script with that option to stop the gluster server process while retaining the fuse mounts.
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> ________________________________
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> From: Aravinda <aravinda at kadalu.tech>
> Sent: 16 February 2024 12:36 PM
> To: Anant Saraswat <anant.saraswat at techblue.co.uk>
> Cc: ronny.adsetts at amazinginternet.com <ronny.adsetts at amazinginternet.com>; gluster-users at gluster.org <gluster-users at gluster.org>; Strahil Nikolov <hunter86_bg at yahoo.com>
> Subject: Re: [Gluster-users] Graceful shutdown doesn't stop all Gluster processes
>
>
>
> EXTERNAL: Do not click links or open attachments if you do not recognize the sender.
>
> No. If the script is used to update the GlusterFS packages in the node, then we need to stop the client processes as well (Fuse client is `glusterfs` process. `ps ax | grep glusterfs`).
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> The default behaviour can't be changed, but the script can be enhanced by adding a new option `--skip-clients` so that it can skip stopping the client processes.
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> --
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> Aravinda
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> Kadalu Technologies
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> ---- On Fri, 16 Feb 2024 16:15:22 +0530  Anant Saraswat <anant.saraswat at techblue.co.uk> wrote ---
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>  Hello Everyone,
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> We are mounting this external Gluster volume (dc.local:/docker_config) for docker configuration on one of the Gluster servers. When I ran the stop-all-gluster-processes.sh script, I wanted to stop all gluster server-related processes on the server, but not to unmount the external gluster volume mounted on the server. However, running stop-all-gluster-processes.sh unmounted the dc.local:/docker_config volume from the server.
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> /dev/mapper/tier1data                   6.1T  4.7T  1.4T  78% /opt/tier1data/brick
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> dc.local:/docker_config  100G   81G   19G  82% /opt/docker_config
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> Do you think stop-all-gluster-processes.sh should unmount the fuse mount?
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> Thanks,
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> Anant
> ________________________________
> From: Gluster-users <gluster-users-bounces at gluster.org> on behalf of Strahil Nikolov <hunter86_bg at yahoo.com>
> Sent: 09 February 2024 5:23 AM
> To: ronny.adsetts at amazinginternet.com <ronny.adsetts at amazinginternet.com>;  gluster-users at gluster.org <gluster-users at gluster.org>
> Subject: Re: [Gluster-users] Graceful shutdown doesn't stop all Gluster processes
>
>
>
> EXTERNAL: Do not click links or open attachments if you do not recognize the sender.
>
> I think the service that shutdowns the bricks on EL systems is something like this - right now I don't have access to my systems to check but you can extract the rpms and see it:
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> https://urldefense.com/v3/__https://bugzilla.redhat.com/show_bug.cgi?id=1022542*c4__;Iw!!I_DbfM1H!CadZuXuensBJrynpw7Z22Af6-hJIBtaRnuHTffxfi3HmMIUedRfnm6q_BY20nFQJ-j1xtZ9TtftPtvhAdoD2HFgXrcbctg$
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> Best Regards,
>
> Strahil Nikolov
>
>>
>> On Wed, Feb 7, 2024 at 19:51, Ronny Adsetts
>>
>> <ronny.adsetts at amazinginternet.com> wrote:
>>
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