[Spread-users] Acceptable retransmission count
yairamir at cnds.jhu.edu
Wed Mar 24 11:26:42 EST 2004
One important difference I see between Greg's setup and Theo's is that
Greg's is using
3 different segements. Greg - is this a wide area network setup?
Also, if you print the status at all three daemons of yours, you would
be able to see
which path looses the messages and that may give you a clue to what is
If it is a wide area network then this is totally acceptable and there
is no problem.
Otherwise, if your network structure allows to use one segment instead
then you can reduce the number of actual messages on your network by half.
Both monitor traces were interesting to me (Theo's showing 60+ days).
Theo Schlossnagle wrote:
>On Wed, 2004-03-24 at 10:56, Greg Shebert wrote:
>>in particular, the section of the manual that explains the output of
>>status updates for daemons mentions that a large number of
>>retransmissions is a bad thing...
>>here is my current status:
>>Status at alservice1 V 3.17. 2 (state 1, gstate 1) after 356413 seconds
>>Membership : 3 procs in 3 segments, leader is ops1
>>rounds : 2017260 tok_hurry : 3 memb change: 3
>>sent pack: 7088494 recv pack : 61955 retrans : 30732
>>u retrans: 30430 s retrans : 0 b retrans : 302
>>My_aru : 39390663 Aru : 39390593 Highest seq: 39390663
>>Sessions : 332 Groups : 17 Window : 60
>>Deliver M: 39400707 Deliver Pk: 39403193 Pers Window: 15
>>Delta Mes: 1971 Delta Pack: 2265 Delta sec : 10
>>the number of retrans, 30732, seems high but then so does the number of
>>sent packets and other such things...
>There's likely something wrong in your network. Here's an output from
>one of our machines. This is the machine on my network with the nearest
>"sent pack" I could find to yours -- though it has a couple more rounds
>Status at www-va-3 V 3.17. 1 (state 1, gstate 1) after 5522361 seconds :
>Membership : 5 procs in 1 segments, leader is admin-va-1
>rounds : 1568978308 tok_hurry : 12989386 memb change: 20
>sent pack: 6085701 recv pack : 13342698 retrans : 42
>u retrans: 42 s retrans : 0 b retrans : 0
>My_aru : 4564420 Aru : 4564420 Highest seq: 4564420
>Sessions : 49 Groups : 45 Window : 60
>Deliver M: 18192098 Deliver Pk: 19495195 Pers Window: 15
>Delta Mes: 712 Delta Pack: 0 Delta sec : 157
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