[Users] Re: time wait bucket table overflow

[Cliff Wells]

On Wed, 2008-01-16 at 09:35 +0300, vaverin wrote:
> 
> Hi Cliff,
> 
> I think network stress testing can create much more time wait buckets.
> It is information message and not an error therefore IMHO it is not a
> problem for you.

I was concerned because I was seeing odd results during testing (the ab
test was running 500-1000 concurrent connections).  Most of the
connections finished in <2ms but a few would take almost as long as the
entire test (15s).  This may be an ab bug however.
> 
> Do you want to allow it? Try to increase 
> /proc/sys/net/ipv4/tcp_max_tw_buckets (global limit)
> and
> /proc/sys/net/ipv4/tcp_max_tw_buckets_ub (per-VE limit, but host
> system itself accounts like ususal VE)
> values.
> 
Yes, I tried this.  Apparently I did not go high enough.  

Thanks for the help.

Regards,
Cliff