17 Mar
2020
17 Mar
'20
10:50 a.m.
Hi Michael,
Does this mean, that mean, that we have some kind of
transaction logs
where we will be able to "walk to" a specific time to restore a
specific state?
the rbd journal records all changes to the primary rbd image which are
asynchronously applied to the remote image. There is no way to jump to
a specific point in time using the journal entries, they are deleted
as soon as the replay has been acked.
To actually walk back to a point in time there are rbd snapshots. They
allow you to roll back an image to a specific snapshot.
Regards,
Eugen
Zitat von Ml Ml <mliebherr99(a)googlemail.com>om>:
> Hello List,
>
> when reading:
> https://docs.ceph.com/docs/master/rbd/rbd-mirroring/
> it says: (...)Journal-based: This mode uses the RBD journaling image
> feature to ensure point-in-time, crash-consistent replication between
> clusters(...)
>
Does this mean, that mean, that we have some kind of
transaction logs
where we will be able to "walk to" a specific time to restore a
specific state?
>
> Like:
>
https://blog.sleeplessbeastie.eu/2016/02/29/how-to-perform-postgresql-point…
>
> Thanks,
> Michael
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