Re: how to cleanup archive based on datetime

On 10/10/18 12:00 AM, magodo wrote:
>
> Hello,
>
> I know there is a tool `pg_archivecleanup`, but it only accepts wal
> filename. What if I want to clean up all archived wal before a
> specified datetime?

That is dangerous, given that a WAL is important not based on its age
but on whether it's content is still needed.

It would help to know what it is you are trying to achieve?

>
> Though I could check the ctime fo each wal and figure out which to
> remove, but it looks like not a elegent way to do this.
>
> Also I tried to parse each wal and compare with the specified datetime
> in a binary-search way, but it is based on the fact that every COMMIT
> time in wal is sequential, but it looks like not the case..
>
> Hence I wonder what is the best practice for this task?
>
> Thank you in advance!
> ---
> Magodo
>
>
>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com