On Wed, Feb 3, 2021 at 10:07:03PM -0500, Craig McIlwee wrote: > > (replying to the entire list instead of Bruce only this time...) > > > > This doesn't make sense to me. Since we hard-linked, why would 12 be so > much smaller? If it was symlinks, I could imaging that, but it doesn't > use symlinks, just hard links, so it should be similar. Please look at > the size of main/base on both, since that is where your data is. Maybe > 11 just has a lot of old WAL that isn't copied. > > > > It depends on how the directory sizes were measured. "du" won't count the same > file more than once, so if space was measured using one of the following > commands: > > du -hs /var/lib/postgresql/ > du -hs /var/lib/postgresql/11/main /var/lib/postgresql/12/main > > Then you would see a large value for the 11 directory and then the 12 directory > would only show the files that weren't already counted when measuring the 11 > directory. Running du on each version's directory separately might give > results that are more in line with expectations. Yes, I was assuming the du commands were run separately on each directory. -- Bruce Momjian <bruce@xxxxxxxxxx> https://momjian.us EDB https://enterprisedb.com The usefulness of a cup is in its emptiness, Bruce Lee
