[dnsdist] ShowServers() Strange Outstanding stats

[Alejandro Adroher Mellado]

Hi all, good morning!! 

Just for let you know (maybe it helps you ), sometimes when I use the showServers() command twice in a second I get strange Outstanding statistics.
Here you have the example. My version is 0.0.748ge09c0df-1pdns.trusty

> showServers()
#   Name              	Address                       	State     Qps    	Qlim Ord 	Wt    	Queries   	Drops 	Drate   	Lat 	Outstanding 		Pools
0   Ext Recursor 1       	xx.xx.xx.xx:7053              up    	37.0    	1000   1  	1   	36652525   	82712   	0.0  	30.6 	18446744073709551615
1   Ext Recursor 2       	xx.xx.xx.xx:7053              up     	5.0    	1000   2  	1   	16026639   	72066   	0.0  	51.5        0
2   Abuse Recursor       	xx.xx.xx.xx:53                up     	0.0    	1000   3  	1         	16      		16   	0.0   	0.0           0 			abuse
All                                                             			40.0                  			52679180  	154794

> showServers()
#   Name                 	Address                       	State     Qps    	Qlim Ord	 Wt    	Queries   	Drops 	Drate   	Lat 	Outstanding 		Pools
0   Ext Recursor 1       	xx.xx.xx.xx:7053                up    	35.9    	1000   1  	1   	36652583   	82712   	0.0  	24.4           0
1   Ext Recursor 2       	xx.xx.xx.xx:7053                up     	5.0    	1000   2  	1   	16026646   	72066   	0.0  	49.7           0
2   Abuse Recursor       	xx.xx.xx.xx:53                  up     	0.0    	1000   3  	1         	16      		16   	0.0   	0.0              0 			abuse
All                                                             			39.0                  			52679245  	154794


Ale