[lvs-users] Differences between ipvsadm and /proc/net/ip_vs

[Simon Horman]

On Wed, Dec 01, 2010 at 07:08:31PM +0100, David Donchez wrote:
> Hi all,
> 
> I have strange difference between ipvsadm output and /proc/net/ip_vs
> 
> See:
> 
> TCP  xxxxxxxxxxxxxxxx wrr persistent 50
>   -> 10.10.1.1:www                 Route   100    1          14       
>   -> 10.10.1.2:www                 Route   100    1          14       
>   -> 10.10.1.3:www                 Route   100    1          59       
> 
> TCP  xxxxxxxxxxxxxxxx wrr persistent 12500 FFFFFFFF
>   -> 0A100103:0050      Route   100    2          57       
>   -> 0A100102:0050      Route   100    0          15       
>   -> 0A100101:0050      Route   100    0          15   
>
> Anoyone knows can it can be possible ? Or which is the right output ?

Hi David,

I believe that the difference in the active and inactive connections
[ (1, 14), (1, 14), (1, 59) vs (2, 57), (0, 15), (0, 15) ] is most likely
due to the measurements having been taken at (slightly?) different times.

The difference in the persistence timeout (50 vs 12500) is due
to different units being used. 50 is in seconds while 12500 is in HZ.
It seems that the value of HZ is 250 on your system.

Lastly, the addresses and ports output by ip_vs are expressed in
hexadecimal and are the same values as those reported by ipvsadm.