On Wed, Jun 02, 2021 at 11:23:00 +0300, Nick Milas wrote:
There is a single master and 4 syncrepl consumers (all on CentOS 7 boxes), all running with back-mdb.
We are planning our migration from 2.4 to 2.5.x
My question: Would it be OK if we migrate our master server to 2.5.latest, and leave consumers to 2.4.58 for a while? Would any implications be expected?
What we're planning to do is not to upgrade in-place, but to add new servers with OpenLDAP 2.5, let them replicate from the current 2.4 environment, and move over service IP's one by one. Eventually we'll make one of the 2.5's the active master (also via a service IP), and decomission the 2.4 environment.
(We'll be moving from CentOS 6 to 7 at the same time, but even without the OS factor, I'd rather migrate than upgrade in-place.)
Geert