I am banging my head against the wall with getting streaming backups running on a fresh pair of postgres & barman servers.
barman check continues to give me WAL archive: FAILED (please make sure WAL shipping is setup)
There is even ssh connectivity between both machines (which, due to the documentation is not even required for streaming backups).
I have noted though that the version of barman-cli 2.12 on the postgres server does not match the version of barman 2.17 on the barman server.
Could this be causing trouble?