Comment 12 for bug 1567114

The boot requests themselves fail.

Admittedly, 1000 or more flavors seems unlikely, but then customers can want the damnedest things. At this point I've not heard of one asking for it, the test I was running was as much seeking to stay ahead of the game as anything else.

Relying on keeping track of the flavor's UUID is going to be brittle - particularly if as it seems one cannot successfully do a nova flavor-list for more than 1000 flavors. Once one has lost track of that UUID, how can one regain it? And there is something of an inconsistency within nova here because nova image-list deals with > 1000 automagically (*), and for nova list one has the --limit option these days to deal with > 1000 instances (well, at least as admin)

What remains perplexing to me is that not all nova boot commands issued after the 1000th flavor was created were unsuccessful in looking up the flavor by name.

*) And it would seem that nova boot was fine with looking up images > 1000 by name - unless the flavor lookup errors were masking what would have been a later image lookup failure.