Commit 5ee2197767 (about 4 years old) introduced the error: "IDENTIFY_SYSTEM has not been run before START_REPLICATION"
But it seems like running START_REPLICATION first works (at least in the simple case). We should either: 1. Document that IDENTIFY_SYSTEM must always be run before START_REPLICATION, and always issue a WARNING if that's not done (an ERROR might break existing applications); or 2. If the commit is out of date and no longer needed, or if it's easy enough to fix, just remove the error (and Assert a valid ThisTimeLineID). Regards, Jeff Davis