On Tue, Jun 26, 2018 at 04:26:59PM +0900, Kyotaro HORIGUCHI wrote: > Hello. This is the reabased version of slot-limit feature. > > This patch limits maximum WAL segments to be kept by replication > slots. Replication slot is useful to avoid desync with replicas > after temporary disconnection but it is dangerous when some of > replicas are lost. The WAL space can be exhausted and server can > PANIC in the worst case. This can prevent the worst case having a > benefit from replication slots using a new GUC variable > max_slot_wal_keep_size.
Have you considered just using a boolean to control if max_wal_size honors WAL preserved by replication slots, rather than creating the new GUC max_slot_wal_keep_size? -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +
