Assertion on cvs head

[Alan DeKok]

Stephan Jaeger wrote:
> Here is the output of -fxxx|grep Thread
> 
> thread settings, just for testing:
> start_servers = 2
> min_spare_servers = 0
> max_spare_servers = 0

  Oh.  That's a corner case that probably isn't well tested.  Setting
the minimum spare threads to zero isn't nice.  It means that you have
*no* threads available when the server is idle.  i.e. it tries to delete
ALL threads when all threads are idle.

  Summary:  Don't do that.  Set min_spare_servers = 1, and
max_spare_server = 1.

  I'll fix the code to complain, and/'or catch this case.

  Alan DeKok.