On Thu, Dec 8, 2022 at 2:43 PM Antonin Houska <a...@cybertec.at> wrote: > When checking something else in the base backup code, I've noticed that > sendFileWithContent() does not advance the 'content' pointer. The sink buffer > is large enough (32kB) so that the first iteration usually processes the whole > file (only special files are processed by this function), and thus that the > problem is hidden. > > However it's possible to hit the issue: if there are too many tablespaces, > pg_basebackup generates corrupted tablespace_map. Instead of writing all the > tablespace paths it writes only some and then starts to write the contents > from the beginning again.
Thanks for the report, analysis, and fix. I have committed your patch and back-patched to v15. -- Robert Haas EDB: http://www.enterprisedb.com