Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-26 Thread Ilya Dryomov
On Mon, Sep 26, 2016 at 11:13 AM, Ilya Dryomov wrote: > On Mon, Sep 26, 2016 at 8:39 AM, Nikolay Borisov wrote: >> >> >> On 09/22/2016 06:36 PM, Ilya Dryomov wrote: >>> On Thu, Sep 15, 2016 at 3:18 PM, Ilya Dryomov wrote: On Thu, Sep

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-26 Thread Ilya Dryomov
On Mon, Sep 26, 2016 at 8:39 AM, Nikolay Borisov wrote: > > > On 09/22/2016 06:36 PM, Ilya Dryomov wrote: >> On Thu, Sep 15, 2016 at 3:18 PM, Ilya Dryomov wrote: >>> On Thu, Sep 15, 2016 at 2:43 PM, Nikolay Borisov wrote: [snipped]

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-26 Thread Nikolay Borisov
On 09/22/2016 06:36 PM, Ilya Dryomov wrote: > On Thu, Sep 15, 2016 at 3:18 PM, Ilya Dryomov wrote: >> On Thu, Sep 15, 2016 at 2:43 PM, Nikolay Borisov wrote: >>> >>> [snipped] >>> >>> cat /sys/bus/rbd/devices/47/client_id >>> client157729 >>> cat

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-22 Thread Ilya Dryomov
On Thu, Sep 15, 2016 at 3:18 PM, Ilya Dryomov wrote: > On Thu, Sep 15, 2016 at 2:43 PM, Nikolay Borisov wrote: >> >> [snipped] >> >> cat /sys/bus/rbd/devices/47/client_id >> client157729 >> cat /sys/bus/rbd/devices/1/client_id >> client157729 >> >> Client

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-15 Thread Ilya Dryomov
On Thu, Sep 15, 2016 at 2:43 PM, Nikolay Borisov wrote: > > [snipped] > > cat /sys/bus/rbd/devices/47/client_id > client157729 > cat /sys/bus/rbd/devices/1/client_id > client157729 > > Client client157729 is alxc13, based on correlation by the ip address > shown by the rados -p

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-15 Thread Nikolay Borisov
On 09/15/2016 03:15 PM, Ilya Dryomov wrote: > On Thu, Sep 15, 2016 at 12:54 PM, Nikolay Borisov wrote: >> >> >> On 09/15/2016 01:24 PM, Ilya Dryomov wrote: >>> On Thu, Sep 15, 2016 at 10:22 AM, Nikolay Borisov >>> wrote: On 09/15/2016

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-15 Thread Ilya Dryomov
On Thu, Sep 15, 2016 at 12:54 PM, Nikolay Borisov wrote: > > > On 09/15/2016 01:24 PM, Ilya Dryomov wrote: >> On Thu, Sep 15, 2016 at 10:22 AM, Nikolay Borisov >> wrote: >>> >>> >>> On 09/15/2016 09:22 AM, Nikolay Borisov wrote: On

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-15 Thread Nikolay Borisov
On 09/15/2016 01:24 PM, Ilya Dryomov wrote: > On Thu, Sep 15, 2016 at 10:22 AM, Nikolay Borisov > wrote: >> >> >> On 09/15/2016 09:22 AM, Nikolay Borisov wrote: >>> >>> >>> On 09/14/2016 05:53 PM, Ilya Dryomov wrote: On Wed, Sep 14, 2016 at 3:30 PM, Nikolay

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-15 Thread Ilya Dryomov
On Thu, Sep 15, 2016 at 10:22 AM, Nikolay Borisov wrote: > > > On 09/15/2016 09:22 AM, Nikolay Borisov wrote: >> >> >> On 09/14/2016 05:53 PM, Ilya Dryomov wrote: >>> On Wed, Sep 14, 2016 at 3:30 PM, Nikolay Borisov wrote: On 09/14/2016

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-15 Thread Nikolay Borisov
On 09/14/2016 05:53 PM, Ilya Dryomov wrote: > On Wed, Sep 14, 2016 at 3:30 PM, Nikolay Borisov wrote: >> >> >> On 09/14/2016 02:55 PM, Ilya Dryomov wrote: >>> On Wed, Sep 14, 2016 at 9:01 AM, Nikolay Borisov wrote: On 09/14/2016 09:55 AM, Adrian

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Ilya Dryomov
On Wed, Sep 14, 2016 at 3:30 PM, Nikolay Borisov wrote: > > > On 09/14/2016 02:55 PM, Ilya Dryomov wrote: >> On Wed, Sep 14, 2016 at 9:01 AM, Nikolay Borisov wrote: >>> >>> >>> On 09/14/2016 09:55 AM, Adrian Saul wrote: I found I could ignore the XFS

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Nikolay Borisov
On 09/14/2016 02:55 PM, Ilya Dryomov wrote: > On Wed, Sep 14, 2016 at 9:01 AM, Nikolay Borisov wrote: >> >> >> On 09/14/2016 09:55 AM, Adrian Saul wrote: >>> >>> I found I could ignore the XFS issues and just mount it with the >>> appropriate options (below from my backup

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Nikolay Borisov
On 09/14/2016 02:55 PM, Ilya Dryomov wrote: > On Wed, Sep 14, 2016 at 9:01 AM, Nikolay Borisov wrote: >> >> >> On 09/14/2016 09:55 AM, Adrian Saul wrote: >>> >>> I found I could ignore the XFS issues and just mount it with the >>> appropriate options (below from my backup

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Ilya Dryomov
On Wed, Sep 14, 2016 at 9:01 AM, Nikolay Borisov wrote: > > > On 09/14/2016 09:55 AM, Adrian Saul wrote: >> >> I found I could ignore the XFS issues and just mount it with the appropriate >> options (below from my backup scripts): >> >> # >> # Mount with nouuid

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Adrian Saul
> But shouldn't freezing the fs and doing a snapshot constitute a "clean > unmount" hence no need to recover on the next mount (of the snapshot) - > Ilya? It's what I thought as well, but XFS seems to want to attempt to replay the log regardless on mount and write to the device to do so. This

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Nikolay Borisov
On 09/14/2016 09:55 AM, Adrian Saul wrote: > > I found I could ignore the XFS issues and just mount it with the appropriate > options (below from my backup scripts): > > # > # Mount with nouuid (conflicting XFS) and norecovery (ro snapshot) > # > if ! mount -o

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-14 Thread Adrian Saul
gt; Subject: Re: [ceph-users] Consistency problems when taking RBD snapshot > > On Tue, Sep 13, 2016 at 4:11 PM, Nikolay Borisov <ker...@kyup.com> wrote: > > > > > > On 09/13/2016 04:30 PM, Ilya Dryomov wrote: > > [SNIP] > >> > >> Hmm, it could be a

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-13 Thread Ilya Dryomov
On Tue, Sep 13, 2016 at 4:11 PM, Nikolay Borisov wrote: > > > On 09/13/2016 04:30 PM, Ilya Dryomov wrote: > [SNIP] >> >> Hmm, it could be about whether it is able to do journal replay on >> mount. When you mount a snapshot, you get a read-only block device; >> when you mount a

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-13 Thread Nikolay Borisov
On 09/13/2016 04:30 PM, Ilya Dryomov wrote: [SNIP] > > Hmm, it could be about whether it is able to do journal replay on > mount. When you mount a snapshot, you get a read-only block device; > when you mount a clone image, you get a read-write block device. > > Let's try this again, suppose

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-13 Thread Ilya Dryomov
On Tue, Sep 13, 2016 at 1:59 PM, Nikolay Borisov wrote: > > > On 09/13/2016 01:33 PM, Ilya Dryomov wrote: >> On Tue, Sep 13, 2016 at 12:08 PM, Nikolay Borisov wrote: >>> Hello list, >>> >>> >>> I have the following cluster: >>> >>> ceph status >>> cluster

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-13 Thread Nikolay Borisov
On 09/13/2016 01:33 PM, Ilya Dryomov wrote: > On Tue, Sep 13, 2016 at 12:08 PM, Nikolay Borisov wrote: >> Hello list, >> >> >> I have the following cluster: >> >> ceph status >> cluster a2fba9c1-4ca2-46d8-8717-a8e42db14bb0 >> health HEALTH_OK >> monmap e2: 5 mons

Re: [ceph-users] Consistency problems when taking RBD snapshot

2016-09-13 Thread Ilya Dryomov
On Tue, Sep 13, 2016 at 12:08 PM, Nikolay Borisov wrote: > Hello list, > > > I have the following cluster: > > ceph status > cluster a2fba9c1-4ca2-46d8-8717-a8e42db14bb0 > health HEALTH_OK > monmap e2: 5 mons at >