Hi Jason, now I'm a bit confused ... I recreated the peers again with names clear: #main site: rbd mirror pool info testpool Mode: image Site Name: master Peer Sites: UUID: e7443ebd-b9e2-47ab-bcfe-f40cb75a6294 Name: backup Mirror UUID: e0d03424-1913-4e0b-90dd-61defabae51a Direction: tx-only #backup site: rbd --cluster backup mirror pool info testpool Mode: image Site Name: backup Peer Sites: UUID: a7ffac0b-09e3-427c-a3a1-5f001a55dcf1 Name: master Mirror UUID: Direction: rx-tx Client: client.admin In my opinion this looks ok, but the error seems the same: 2020-07-24T21:14:21.559+0200 7fb9d709a700 -1 rbd::mirror::image_replayer::snapshot::Replayer: 0x56122bb43800 init: failed to retrieve mirror peer uuid from remote pool 2020-07-24T21:14:21.559+0200 7fb9e28b1700 -1 rbd::mirror::image_replayer::snapshot::Replayer: 0x56122bb43800 get_replay_status: replay not running 2020-07-24T21:14:22.515+0200 7fb9e28b1700 5 rbd::mirror::Instances: 0x56122af49d40 handle_acked: instance_ids=[10464751] 2020-07-24T21:14:27.519+0200 7fb9e28b1700 5 rbd::mirror::Instances: 0x56122af49d40 handle_acked: instance_ids=[10464751] 2020-07-24T21:14:31.559+0200 7fb9e28b1700 -1 rbd::mirror::image_replayer::snapshot::Replayer: 0x56122bb43800 get_replay_status: replay not running 2020-07-24T21:14:32.519+0200 7fb9e28b1700 5 rbd::mirror::Instances: 0x56122af49d40 handle_acked: instance_ids=[10464751] If I disable mirroring on the testimage on main site, the mirror daemon tells me: 2020-07-24T21:15:58.775+0200 7f3cd6f3b700 -1 rbd::mirror::image_replayer::snapshot::Replayer: 0x55fbad17c800 handle_unregister_remote_update_watcher: failed to unregister remote update watcher: (2) No such file or directory 2020-07-24T21:15:58.775+0200 7f3cd6f3b700 -1 rbd::mirror::image_replayer::snapshot::Replayer: 0x55fbad17c800 handle_unregister_local_update_watcher: failed to unregister local update watcher: (2) No such file or directory The created image on the backup site doesn't get removed. Journal based mirroring works without any problem on the same image. Thanks for any hints Yves -----Ursprüngliche Nachricht----- Betreff: Re: Re: Re: journal based mirroring works but snapshot based not You need to have unique names for your site -- so "ceph" is not an appropriate name. Right now, your backup set is named "ceph" and you have a peer named "ceph". On Fri, Jul 24, 2020 at 8:43 AM Yves wrote: > > Runing "rbd mirror pool peer set testpool 0622b647-2c24-4840-93d0-efdee180ab15 site-name backup" > get's me: > 2020-07-24T14:07:57.205+0200 7fc414af53c0 -1 librbd::api::Mirror: > peer_site_set_name: failed to update site > '0622b647-2c24-4840-93d0-efdee180ab15': (17) File exists > > So I deleted peers again and recreated with same site-name. > > On main site it looks this way: > rbd mirror pool info testpool > Mode: image > Site Name: ceph > Peer Sites: > UUID: e68b09de-1d2c-4ec6-9350-a6ccad26e1b7 > Name: ceph > Mirror UUID: 4d7f87f4-47be-46dd-85f1-79caa3fa23da > Direction: tx-only > > > On backup site: > rbd --cluster backup mirror pool info testpool > Mode: image > Site Name: ceph > Peer Sites: > UUID: 399e902c-deee-498c-bcdc-1c4f7a59433a > Name: ceph > Mirror UUID: > Direction: rx-tx > Client: client.admin > > > But situation didn't change. > > > Gesendet: Freitag, 24. Juli 2020 um 14:04 Uhr > Von: "Jason Dillaman" > Cc: "ceph-users" <ceph-users@xxxxxxx> > > > > Hi, > > > > this is the main site: > > > > rbd mirror pool info testpool > > Mode: image > > Site Name: ceph > > > > Peer Sites: > > > > UUID: 1f1877cb-5753-4a0e-8b8c-5e5547c0619e > > Name: backup > > Mirror UUID: e9e2c4a0-1900-4db6-b828-e655be5ed9d8 > > Direction: tx-only > > > > > > and the backup site: > > > > rbd --cluster backup mirror pool info testpool > > Mode: image > > Site Name: backup > > > > Peer Sites: > > > > UUID: 0622b647-2c24-4840-93d0-efdee180ab15 > > Name: ceph > > Direction: rx-only > > Client: client.rbd-mirror-peer > > At the backup site, run "rbd mirror pool peer set testpool > 0622b647-2c24-4840-93d0-efdee180ab15 site-name backup" to update the > site-name to match. > > > _______________________________________________ > > ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an > > email to ceph-users-leave@xxxxxxx > > > > > -- > Jason > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx