It’s normal behaviour to create a new timeline, when a PostgreSQL slave become a new master. This is for what timelines were designed.
> 19 нояб. 2018 г., в 0:50, Yuri Kanivetsky <yuri.kanivet...@gmail.com> > написал(а): > > Hi, > > I'm trying to set up Barman, and I've noticed that PostgreSQL 10 > creates a new timeline when starting with a restored data dir. > Particularly, when WAL files are delivered via restore_command. When > WAL files are copied to pg_wal dir, no new timeline is created. Is it > to be expected? Can you explain? > > I decided to ask here first, since you might know better how > PostgreSQL operates. > > Thanks in advance. >
