<wild guess> do you have any statefull firewalls interfering with the tcp teardown between the servers. </wild guess>
Thanks for the guess - no, there isn't unfortunately, they all sit in the same subnet fow now as it's a dev setup.
The only difference I've noticed is that my config olcDatabase had the syncrepl set as:
type=refreshAndPersist
however my hdb olcDatabase was set as:
type=refreshOnly
I've changed the HDB over to refreshAndPersist as that is more suitable (I believe)... Would it have a knock on effect incase there there is a communication break? Finally - I guess if there had been a teardown between the servers, in this case, why does the server I've shut down hang indefinitely without hitting a timeout for "operations to finish"?
Cheers,