Thank you for the information Laurenz Albe On Fri, Jul 12, 2024 at 9:13 PM Laurenz Albe <laurenz.a...@cybertec.at> wrote:
> On Fri, 2024-07-12 at 20:41 +0530, Mukesh Tanuku wrote: > > I have a question with postgres HA setup. > > We are setting up a 2 node postgres cluster with async streaming > replication, we want to > > define a RPO (Recovery point objective) in case of primary failure. > > > > How can we best define the RPO in this setup? since it's an async > streaming replication > > setup there might be a chance of data loss which is proportional to the > replication delay. > > > > Is there any way we can configure the delay duration, like for example > to make sure every > > 10 mins the standby sync has to happen with primary? > > When there is a delay, it is usually because replay at the standby is > delayed. > The WAL information is still replicated. You won't lose that information > on > failover; it will just make the failover take longer. > > Unless you have a network problem, you should never lose more than a > fraction > of a second. > > Yours, > Laurenz Albe >
