On Fri, Nov 22, 2013 at 11:46 PM, Albe Laurenz <laurenz.albe@xxxxxxxxxx> wrote: > Michael Paquier wrote: >> On Fri, Nov 22, 2013 at 10:03 PM, Kaushal Shriyan <kaushalshriyan@xxxxxxxxx> wrote: >>> I am not sure i understand the difference between async and sync replication >>> and on what scenarios i should use async or sync replication. Does it mean >>> if it is within same DC then sync replication is the best and if it is >>> across DC replication async is better than sync. Please help me understand. > >> In the case of synchronous replication, master node waits for the >> confirmation that a given transaction has committed on slave side >> before committing itself. This wait period can cause some delay, hence >> it is preferable to use sync replication with nodes that far from each >> other. > > I am sure that you wanted to say > "with nodes *not* that far from each other". Oops sorry for the typo. Yes I meant of course "not that far". -- Michael -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
