[omniORB] omninames: cannot create a worker fot this endpoint

[Bruno CARLUS]

Hello,
I've been running omniNames (omniORB 4.0.7) for quite a long time on the 
same machine (Mandriva 2006 x86) and everything was going smoothly but 
one morning this week after an omniNames restart (ok) the different 
client could not resolve the nameservice reference anymore and omninames 
prints out a large bunch of messages "omninames cannot create a worker 
for this endpoint". The point is that there is a lot of clients 
connecting at the same time to the name service (about 1000).
Has anybody already encountered this problem ?
Is there any system limitation that could have been raised here? Max 
thread nb? Tcp connection mem buffer? that make omninames not able to 
answer?

Thanks!
Bruno.