Re: VacuumDB generating huge WAL filed

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On Wed, 2024-12-11 at 23:25 -0700, David G. Johnston wrote:
> On Wednesday, December 11, 2024, SASIKUMAR Devaraj <sashikumard@xxxxxxxxx> wrote:
> > When we are running vacuumdb for our database of 1.5TB it is generating approximately 60GB
> > of WAL files? Any way we can reduce this WAL file generation?
> 
> Set a much more aggressive autovacuum so you don’t accumulate as much dead tuples between runs?

You can also activate "wal_compression" for smaller full-page images
and increase "max_wal_size" to get fewer of them.

But 60GB of WAL shouldn't be a problem.  Why are they a problem for you?

Yours,
Laurenz Albe






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