On Wed, Dec 20, 2017 at 3:33 PM, Erik Rijkers <e...@xs4all.nl> wrote: > (logical replication does the initial syncing of the instances one by one > (sequentially) so it isn't as busy as expected; it just takes a long time)
This is quite different then. I thought that you meant physical replication with a set of cascading standbys! > I wrote a simple perl program to test logical replication (attached, FWIW), > running: > > ./cascade.pl --instances=50 --scale=1 --clients=16 --threads=8 --duration=1 > --repeats=3 --waiting=10 > > This cascade.pl program uses knowledge of my setup so probably won't run > elsewhere as is but it shows how the failing test was done. I can get that to work easily at quick glance in my environment. Likely that will help. -- Michael