[ceph-users] Cephfs snapshot work

Brady Deetz bdeetz at gmail.com
Tue Nov 7 06:40:37 PST 2017


Are there any existing fuzzing tools you'd recommend? I know about ceph osd
thrash, which could be tested against, but what about on the client side? I
could just use something pre-built for posix, but that wouldn't coordinate
simulated failures on the storage side with actions against the fs. If
there is not any current tooling for coordinating server and client
simulation, maybe that's where I start.

On Nov 7, 2017 5:57 AM, "John Spray" <jspray at redhat.com> wrote:

> On Sun, Nov 5, 2017 at 4:19 PM, Brady Deetz <bdeetz at gmail.com> wrote:
> > My organization has a production  cluster primarily used for cephfs
> upgraded
> > from jewel to luminous. We would very much like to have snapshots on that
> > filesystem, but understand that there are risks.
> >
> > What kind of work could cephfs admins do to help the devs stabilize this
> > feature?
>
> If you have a disposable test system, then you could install the
> latest master branch of Ceph (which has a stream of snapshot fixes in
> it) and run a replica of your intended workload.  If you can find
> snapshot bugs (especially crashes) on master then they will certainly
> attract interest.
>
> John
>
> >
> > _______________________________________________
> > ceph-users mailing list
> > ceph-users at lists.ceph.com
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
>
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