Re: [ceph-users] Cephfs snapshot work

2017-11-06 Thread Vasu Kulkarni
On Sun, Nov 5, 2017 at 8:19 AM, Brady Deetz 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

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread John Spray
On Sun, Nov 5, 2017 at 4:19 PM, Brady Deetz 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

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread Brady Deetz
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 t

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread John Spray
On Tue, Nov 7, 2017 at 2:40 PM, Brady Deetz wrote: > 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 fa

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread Dan van der Ster
On Tue, Nov 7, 2017 at 12:57 PM, John Spray wrote: > On Sun, Nov 5, 2017 at 4:19 PM, Brady Deetz 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 t

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread John Spray
On Tue, Nov 7, 2017 at 3:01 PM, Dan van der Ster wrote: > On Tue, Nov 7, 2017 at 12:57 PM, John Spray wrote: >> On Sun, Nov 5, 2017 at 4:19 PM, Brady Deetz wrote: >>> My organization has a production cluster primarily used for cephfs upgraded >>> from jewel to luminous. We would very much like

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread Dan van der Ster
On Tue, Nov 7, 2017 at 4:15 PM, John Spray wrote: > On Tue, Nov 7, 2017 at 3:01 PM, Dan van der Ster wrote: >> On Tue, Nov 7, 2017 at 12:57 PM, John Spray wrote: >>> On Sun, Nov 5, 2017 at 4:19 PM, Brady Deetz wrote: My organization has a production cluster primarily used for cephfs

Re: [ceph-users] Cephfs snapshot work

2017-11-07 Thread John Spray
On Tue, Nov 7, 2017 at 3:28 PM, Dan van der Ster wrote: > On Tue, Nov 7, 2017 at 4:15 PM, John Spray wrote: >> On Tue, Nov 7, 2017 at 3:01 PM, Dan van der Ster wrote: >>> On Tue, Nov 7, 2017 at 12:57 PM, John Spray wrote: On Sun, Nov 5, 2017 at 4:19 PM, Brady Deetz wrote: > My organiz