Hi Rafi, thank you for the explanation. I never thought about such a scenario. But you are right :-). I only wonder, that I have never notice this before. But better late then never. Stefan Am 12.07.2018 um 12:58 schrieb Mohammed Rafi K C: > Hi Stefan, > > This is not a Gluster4 series, it is a design choice. This is the same > behavior in 3.x series also. When you restore a volume, we cannot use > the old path. Because we are not sure about the path at time when we > restore the volume. I will explain with an example. > > Let's say you have 1*3 volume, and you took snapshot say snap1. Later > you decide to remove a brick and make the volume as 1*2. It is very much > possible that the removed brick will be deleted and/or mount point might > have reused for some other purpose. So when we restore the snap1, it > will have volume configuration as 1*3. If we use the same path, then the > third path is not in our gluster space. > > To avoid this scenario, when a snapshot restore, we use the same > snapshot bricks. Ie volume bricks will make to point to snapshot brick. > > > Regards > > Rafi KC > > > On 07/12/2018 01:47 PM, Stefan Kania wrote: >> >> No one uses gluster 4.1.1 with snapshots? >> >> >> Am 10.07.18 um 14:11 schrieb Stefan Kania: >>> Hello, >>> >>> I just installed Gluster Version 4.1.1 from, the gluster.org repository. >>> I tested the snapshot function and now I'm having the following problem: >>> >>> When I do a "gluster volume info" BEFOR the snapshot I got: >>> ---------- >>> >>> root@sambabuch-c2:~# gluster snapshot create snap1 gv1 >>> >>> root@sambabuch-c2:~# gluster v info >>> >>> Volume Name: gv1 >>> Type: Replicate >>> Volume ID: 43dcb41c-4893-4bbe-98fd-01f47810ee89 >>> Status: Started >>> Snapshot Count: 0 >>> Number of Bricks: 1 x 2 = 2 >>> Transport-type: tcp >>> Bricks: >>> Brick1: knoten-1:/gluster/brick >>> Brick2: knoten-2:/gluster/brick >>> Options Reconfigured: >>> performance.client-io-threads: off >>> nfs.disable: on >>> transport.address-family: inet >>> ---------- >>> The path in "Brick1:" and "Brick2" ist ok. >>> Then I revert to the snapshot with: >>> --------- >>> >>> root@sambabuch-c1:~# gluster volume stop gv1 >>> >>> root@sambabuch-c1:~# gluster snapshot restore snap1_GMT-2018.07.10-11.36.32 >>> >>> root@sambabuch-c1:~# gluster v info >>> >>> Volume Name: gv1 >>> Type: Replicate >>> Volume ID: 43dcb41c-4893-4bbe-98fd-01f47810ee89 >>> Status: Started >>> Snapshot Count: 0 >>> Number of Bricks: 1 x 2 = 2 >>> Transport-type: tcp >>> Bricks: >>> Brick1: >>> knoten-1:/run/gluster/snaps/ff8f9838466a4566a18fb74be82ed56d/brick1/brick >>> Brick2: >>> knoten-2:/run/gluster/snaps/ff8f9838466a4566a18fb74be82ed56d/brick2/brick >>> Options Reconfigured: >>> performance.client-io-threads: off >>> nfs.disable: on >>> transport.address-family: inet >>> features.quota: off >>> features.inode-quota: off >>> features.quota-deem-statfs: off >>> --------- >>> As you can see, the path for "Brick1: " and "Brick2: " has changed to >>> the path where the snapshot is located. How do I get the original path >>> back? >>> I have never seen this wit a Gluster-Version 3.x before. >>> >>> I use Debian 9. I created an LVM2 to take snapshots. The snapshots are >>> working, as long as I only mount the snapshot and copy some files out of >>> the snapshot to the volume, everything is fine. Only if I revert a >>> snapshot I have the problem. Is there anything new I did not do? Or how >>> can I got my original path back? >>> >>> Thank's >>> >>> Stefan >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> Gluster-users mailing list >>> Gluster-users@xxxxxxxxxxx >>> https://lists.gluster.org/mailman/listinfo/gluster-users >> >> -- >> Stefan Kania >> Landweg 13 >> 25693 St. Michaelisdonn >> >> >> Signieren jeder E-Mail hilft Spam zu reduzieren. Signieren Sie ihre E-Mail. Weiter Informationen unter http://www.gnupg.org >> >> Mein Schlüssel liegt auf >> >> hkp://subkeys.pgp.net >> >> >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users@xxxxxxxxxxx >> https://lists.gluster.org/mailman/listinfo/gluster-users > -- Stefan Kania Landweg 13 25693 St. Michaelisdonn Signieren jeder E-Mail hilft Spam zu reduzieren. Signieren Sie ihre E-Mail. Weiter Informationen unter http://www.gnupg.org Mein Schlüssel liegt auf hkp://subkeys.pgp.net
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