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
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>
>
>
--
Adrian Klaver
adrian.klaver@aklaver.com