We have a hopefully an easy question to answer.
In the scenario when the XDC is stood up and a secondary cluster goes under the maintenance events would be created on the primary but not collected by the secondary cluster.
For how long the not picked-up events will stay in the queue before they are cleaned up?
Does the queue metadata content have any play in the queue cleanup, e.g. in the scenario of the multiple clusters polling the events there could be a different sequence for each cluster due to the maintenance, replication lag etc.?