[Spread-users] Token circulates very frequently

[Stanisław Trytek]

I am noticing some strange behaviour with the token from time to time.
Even if nothing is being sent the regular token circulates very frequently  
in one segment.
It seems that the token is not swallowed by leader after a round.
Take a look at monitor output: 80rounds per second.
I happens in version 4.0.0 as well as in 3.17.3;
In that case that behavior was triggered by regular membership message but  
it is not rule.
That strange state is difficult to trigger but I am trying to figure out  
what is the cause of that.

Does sombody experienced such spread's behaviour?

Stanislaw Trytek

Monitor> Monitor: send status query

============================
Status at node0070 V 4.00. 0 (state 1, gstate 1) after 1037 seconds :
Membership  :  3  procs in 1 segments, leader is node0070
rounds   :     337	tok_hurry :     167	memb change:       3
sent pack:      10	recv pack :       2	retrans    :       0
u retrans:       0	s retrans :       0	b retrans  :       0
My_aru   :      12	Aru       :      12	Highest seq:      13
Sessions :       1	Groups    :       1	Window     :      50
Deliver M:      11	Deliver Pk:      20	Pers Window:      10
Delta Mes:       0	Delta Pack:       0	Delta sec  :      37
==================================

Monitor>
============================
Status at node0063 V 4.00. 0 (state 1, gstate 1) after 180 seconds :
Membership  :  3  procs in 1 segments, leader is node0070
rounds   :     152	tok_hurry :      25	memb change:       1
sent pack:       1	recv pack :       3	retrans    :       0
u retrans:       0	s retrans :       0	b retrans  :       0
My_aru   :      12	Aru       :      12	Highest seq:      13
Sessions :       0	Groups    :       1	Window     :      50
Deliver M:      10	Deliver Pk:      12	Pers Window:      10
Delta Mes:      -1	Delta Pack:       0	Delta sec  :    -857
==================================

Monitor>
============================
Status at lap0001 V 4.00. 0 (state 1, gstate 1) after 1010 seconds :
Membership  :  3  procs in 1 segments, leader is node0070
rounds   :     327	tok_hurry :     163	memb change:       2
sent pack:       2	recv pack :      11	retrans    :       0
u retrans:       0	s retrans :       0	b retrans  :       0
My_aru   :      13	Aru       :      12	Highest seq:      13
Sessions :       1	Groups    :       1	Window     :      50
Deliver M:      11	Deliver Pk:      21	Pers Window:      10
Delta Mes:       1	Delta Pack:       0	Delta sec  :     830
==================================

Monitor> Monitor: send status query

============================
Status at node0070 V 4.00. 0 (state 1, gstate 1) after 1047 seconds :
Membership  :  3  procs in 1 segments, leader is node0070
rounds   :     417	tok_hurry :     167	memb change:       3
sent pack:      10	recv pack :       2	retrans    :       0
u retrans:       0	s retrans :       0	b retrans  :       0
My_aru   :      12	Aru       :      12	Highest seq:      13
Sessions :       1	Groups    :       1	Window     :      50
Deliver M:      11	Deliver Pk:      20	Pers Window:      10
Delta Mes:       0	Delta Pack:       0	Delta sec  :      37
==================================

Monitor>
============================
Status at node0063 V 4.00. 0 (state 1, gstate 1) after 190 seconds :
Membership  :  3  procs in 1 segments, leader is node0070
rounds   :     232	tok_hurry :      25	memb change:       1
sent pack:       1	recv pack :       3	retrans    :       0
u retrans:       0	s retrans :       0	b retrans  :       0
My_aru   :      12	Aru       :      12	Highest seq:      13
Sessions :       0	Groups    :       1	Window     :      50
Deliver M:      10	Deliver Pk:      12	Pers Window:      10
Delta Mes:      -1	Delta Pack:       0	Delta sec  :    -857
==================================

Monitor>
============================
Status at lap0001 V 4.00. 0 (state 1, gstate 1) after 1020 seconds :
Membership  :  3  procs in 1 segments, leader is node0070
rounds   :     407	tok_hurry :     163	memb change:       2
sent pack:       2	recv pack :      11	retrans    :       0
u retrans:       0	s retrans :       0	b retrans  :       0
My_aru   :      13	Aru       :      12	Highest seq:      13
Sessions :       1	Groups    :       1	Window     :      50
Deliver M:      11	Deliver Pk:      21	Pers Window:      10
Delta Mes:       1	Delta Pack:       0	Delta sec  :     830
==================================