Hi,
Actually, when I setup 2-nodes MirrorMode and add too much entries to both nodes, at the same time, sometimes both databases weren't syncrhonized correctly. (I made a script to add 10,000 entries, and run it on both nodes at the same time.)
My understanding may be wrong, but in a mirror mode, you need to add the entries in one node only, and the mirror will take care of the updating of the other node.
(or you add half the entries in one node and the other half on the other node).
If you add the same information on both node, the mirror will also try to add that information on the other node and it will fail.
Bests,
olivier