Re: Backup and failover process

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



>>> "Campbell, Lance" <lance@xxxxxxxxxxxx> wrote: 
 
> What happens if you take an SQL snapshot of a database while
> creating WAL archives then later restore from that SQL snapshot and
> apply those WAL files?
 
What do you mean by "an SQL snapshot of a database"?  WAL files only
come into play for backup techniques which involve file copies, not
dumps done using SQL commands (like pg_dump).
 
> Will there be a problem if the transactions
> within the newest WAL file after the SQL snapshot was taken cause
> problems when they are applied?
 
Point In Time Recovery (PITR) backup techniques allow you to restore
to a specified point in time, so you could restore up to the point
immediately before the problem transactions.
 
> I would assume yes but I wanted to
> check if there was some type of timestamp that would prevent an
issue
> from occurring?
 
Take another look at this section -- in particular,
recovery_target_time.
 
I hope this helps.
 
-Kevin


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux