On Mon, Jun 6, 2016 at 5:32 PM, Patrick B <patrickbake...@gmail.com> wrote:
> My set up: > > > Master --> slave01 (streaming replication) --> slave02 (streaming > replication) > Master --> slave03 (wal_files 4 days old, not streaming replication) > > The wal_files are stored into each server. > But when the slave03 was down, the wal_files weren't being copied into it. > We took too long to discover that, and now we lost some wal_files.. they've > been recycled... > > So my question is: > > Can I just do a RE-SYNC from slave01 to slave03 of the data folder? > Or do I have to sync all the database again? > > If the master is successfully shipping WALs to slave03 now, re-syncing that replica from slave01 (or slave02) should work fine. By "re-sync" I assume you mean a full filesystem copy using pg_basebackup etc.