[Gluster-users] how to restore snapshot LV's

[Mohammed Rafi K C]

I do not know how you ended up in this state. This usually happens when
there is a commit failure. To recover from this state you can change the
value of "status" from

the path /var/lib/glusterd/snaps/<snapname>/<snapuid>/info . From this
file change the status to 0 in nodes where the values are one. Then
restart glusterd on those node where we changed manually.

Then try to activate it.


Regards

Rafi KC


On 05/18/2017 09:38 AM, Pranith Kumar Karampuri wrote:
> +Rafi, +Raghavendra Bhat
>
> On Tue, May 16, 2017 at 11:55 AM, WoongHee Han <polishedwh at gmail.com
> <mailto:polishedwh at gmail.com>> wrote:
>
>     Hi, all!
>
>     I erased the VG having snapshot LV related to gluster volumes
>     and then, I tried to restore volume;
>
>     1. vgcreate vg_cluster /dev/sdb
>     2. lvcreate --size=10G --type=thin-pool -n tp_cluster vg_cluster
>     3. lvcreate -V 5G --thinpool vg_cluster/tp_cluster -n test_vol
>     vg_cluster
>     4. gluster v stop test_vol
>     5. getfattr -n trusted.glusterfs.volume-id /volume/test_vol ( in
>     other node)
>     6. setfattr -n trusted.glusterfs.volume-id -v
>      0sKtUJWIIpTeKWZx+S5PyXtQ== /volume/test_vol (already mounted)
>     7. gluster v start test_vol
>     8. restart glusterd
>     9. lvcreate -s vg_cluster/test_vol --setactivationskip=n
>     --name 6564c50651484d09a36b912962c573df_0
>     10. lvcreate -s vg_cluster/test_vol --setactivationskip=n
>     --name ee8c32a1941e4aba91feab21fbcb3c6c_0
>     11. lvcreate -s vg_cluster/test_vol --setactivationskip=n
>     --name bf93dc34233646128f0c5f84c3ac1f83_0 
>     12. reboot
>
>     It works, but bricks for snapshot is not working.
>
>     ------------------------------------------------------------------------------------------------------------------------------------------
>     ~]# glsuter snpshot status
>     Brick Path        :  
>     192.225.3.35:/var/run/gluster/snaps/bf93dc34233646128f0c5f84c3ac1f83/brick1
>     Volume Group      :   vg_cluster
>     Brick Running     :   No
>     Brick PID         :   N/A
>     Data Percentage   :   0.22
>     LV Size           :   5.00g
>
>
>     Brick Path        :  
>     192.225.3.36:/var/run/gluster/snaps/bf93dc34233646128f0c5f84c3ac1f83/brick2
>     Volume Group      :   vg_cluster
>     Brick Running     :   No
>     Brick PID         :   N/A
>     Data Percentage   :   0.22
>     LV Size           :   5.00g
>
>
>     Brick Path        :  
>     192.225.3.37:/var/run/gluster/snaps/bf93dc34233646128f0c5f84c3ac1f83/brick3
>     Volume Group      :   vg_cluster
>     Brick Running     :   No
>     Brick PID         :   N/A
>     Data Percentage   :   0.22
>     LV Size           :   5.00g
>
>
>     Brick Path        :  
>     192.225.3.38:/var/run/gluster/snaps/bf93dc34233646128f0c5f84c3ac1f83/brick4
>     Volume Group      :   vg_cluster
>     Brick Running     :   Tes
>     Brick PID         :   N/A
>     Data Percentage   :   0.22
>     LV Size           :   5.00g
>
>     ~]# gluster snapshot deactivate t3_GMT-2017.05.15-08.01.37
>     Deactivating snap will make its data inaccessible. Do you want to
>     continue? (y/n) y
>     snapshot deactivate: failed: Pre Validation failed on
>     192.225.3.36. Snapshot t3_GMT-2017.05.15-08.01.37 is already
>     deactivated.
>     Snapshot command failed
>
>     ~]# gluster snapshot activate t3_GMT-2017.05.15-08.01.37
>     snapshot activate: failed: Snapshot t3_GMT-2017.05.15-08.01.37 is
>     already activated
>
>     ------------------------------------------------------------------------------------------------------------------------------------------
>
>
>     how to  restore snapshot LV's ?
>
>     my nodes consist of four nodes and  distributed, replicated (2x2)
>
>
>     thank you.
>
>
>
>
>     _______________________________________________
>     Gluster-users mailing list
>     Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
>     http://lists.gluster.org/mailman/listinfo/gluster-users
>     <http://lists.gluster.org/mailman/listinfo/gluster-users>
>
>
>
>
> -- 
> Pranith

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170519/9f37eb6a/attachment.html>