Re: CephFS snapshots and kernel cephfs continuous I/O

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Hi Caskd,

We have a protocol called "Quiesce" that can pause I/O for snapshot
consistency [0]. If that is something that might help you, do check it out.

[0] https://docs.ceph.com/en/latest/dev/mds_internals/quiesce/

--
*Dhairya Parmar*

Associate Software Engineer, CephFS

<https://www.redhat.com/>IBM, Inc.

On Sun, Jul 7, 2024 at 7:14 PM caskd <caskd@xxxxxxxxx> wrote:

> Hello ceph users and devs,
>
> I've set up CephFS as a storage which ingests data for multiple hours and
> snap-schedule hourly. This however causes problems in the case of clients
> which cannot handle the EAGAIN (Resource busy/temporary unavailable) the
> kernel gives back during snapshotting. Is there any plans or option to
> change this behaviour to just wait until the snapshot is done and continue
> IO as nothing happened?
>
> Thanks in advance.
>
> --
> Alex D.
> RedXen System & Infrastructure Administration
> https://redxen.eu/
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