You are correct we do not copy the access log, strictly the primary db. When we restore a backup with a behind checkpoint we find some entries have incorrect fields in the new provider given the current state of the original provider, in other words, the databases do not match. The new provider seems to regain an incorrect state when syncing with a behind checkpoint from the current DB state.
On Provider A (missing or large olcSpCheckpoint interval possibly days old). Add group1 with a set of 100 users. Add the 100 users to a new group, group2. Take a backup with mdb_copy. Delete group2. On Provider B Build / setup with the backup mdb_copy database. Turn on delta sync to Provider A When the catch up sync is finished, compare the database contents for accuracy. We are seeing group membership become incorrect on Provider B (the new provider). We cannot upgrade at the moment and olcSpCheckpoint: 1 1 seems to work. Is there any reason we should not use olcSpCheckpoint: 1 1?
