On 09/07/2018 05:22 PM, David Steele wrote:
Hi Ron,
On 9/6/18 11:21 PM, Ron wrote:
Will pgbackrest properly backup and restore the cluster if data/base,
data/pg_xlog and data/pg_log are symlinks?
PGDATA=/var/lib/pgsql/9.6/data
$PGDATA/base -> /Database/9.6/base
$PGDATA/pg_log -> /Database/9.6/pg_log
$PGDATA/pg_xlog -> /Database/9.6/pg_xlog
Yes, this will work. Note that restore does not recreate symlinks by
default so you'll need to specify --link-all to enable symlink creation.
See
https://pgbackrest.org/configuration.html#section-restore/option-link-all
for details.
Using symlinks in this way will make management of your clusters more
difficult, mostly because systems need more provisioning before restores
can be performed. In general I'd recommend against it unless there are
performance considerations.
Also, you might consider using log_directory to relocate log files rather
than a symlink. This will exclude log files from your backup which is
usually preferable -- primary logs restored to a standby are out of
context and can cause confusion.
Thanks for the tips. I'll probably implement that on our new systems.
--
Angular momentum makes the world go 'round.
