group cache is full?

[Olaf Titz]

> > Jul 15 08:48:37 hub innd: tradindexed: group cache is full, waiting 10
> > seconds

I stumbled across that when I first looked at ov3.c, and I still fail
completely to see a rationale for the sleep. What would be helped by
the whole (non-multithreaded, non-shared-memory) innd process to sleep
for 10 seconds? Perhaps someone can tell if that is a debugging
leftover, in which case it should be removed, or what else it is.

Olaf