[ceph-users] Cephfs snapshot work

John Spray jspray at redhat.com
Tue Nov 7 07:15:33 PST 2017


On Tue, Nov 7, 2017 at 3:01 PM, Dan van der Ster <dan at vanderster.com> wrote:
> On Tue, Nov 7, 2017 at 12:57 PM, 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.
>
> Hi John. Are those fixes in master expected to make snapshots stable
> with rados namespaces (a la Manila) ?

Was there a specific bug with snapshots+namespaces?  I may be having a
failure of memory or have not been paying enough attention :-)

John


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