[Spread-users] Spread and occasional large messages
Ed Holyat
eholyat at olf.com
Mon Mar 12 14:18:24 EDT 2007
I was hoping that someone has run into this problem before.
I am running into significant delays for all message groups when sending
a large number of messages 180*100K onto the spread network. This burst
of large packets will be sent from a single client application. There
is also delays in memberships when this message is put onto the spread
network.
What parameters can I add to the conf file to accommodate this burst of
large messages? This message is occasionally sent and is out of the
norm, most messages are < 1K on average.
Would increasing the Window help?
Would it be better to pause 100 millisecs between sending the 100K
packets?
Will changes to accommodate larger messages directly affect latency in
the delivery of smaller messages?
Monitor> Monitor: send status query
============================
Status at sky V 4.00. 0 (state 1, gstate 1) after 5891550 seconds :
Membership : 5 procs in 3 segments, leader is sky
rounds : 47962882 tok_hurry : 11708705 memb change: 632
sent pack: 2148551 recv pack : 20018353 retrans : 633760
u retrans: 575246 s retrans : 21 b retrans : 58493
My_aru : 4054 Aru : 4054 Highest seq: 4054
Sessions : 9 Groups : 4831 Window : 60
Deliver M: 14549831 Deliver Pk: 24559079 Pers Window: 15
Delta Mes: 14549831 Delta Pack: 4054 Delta sec : 5891550
==================================
Monitor>
============================
Status at cp-devserv4 V 4.00. 0 (state 1, gstate 1) after 7703983
seconds :
Membership : 5 procs in 3 segments, leader is sky
rounds : 52378036 tok_hurry : 12968851 memb change: 695
sent pack: 117594 recv pack : 23809965 retrans : 1737
u retrans: 176 s retrans : 1190 b retrans : 371
My_aru : 4054 Aru : 4054 Highest seq: 4054
Sessions : 8 Groups : 4831 Window : 60
Deliver M: 15543677 Deliver Pk: 26684442 Pers Window: 15
Delta Mes: 993846 Delta Pack: 0 Delta sec : 1812433
==================================
Monitor>
============================
Status at cp-devserv3 V 4.00. 0 (state 1, gstate 1) after 3960720
seconds :
Membership : 5 procs in 3 segments, leader is sky
rounds : 38043284 tok_hurry : 8938916 memb change: 546
sent pack: 10962055 recv pack : 6576530 retrans : 221495
u retrans: 164219 s retrans : 0 b retrans : 57276
My_aru : 4054 Aru : 4054 Highest seq: 4054
Sessions : 143 Groups : 4831 Window : 60
Deliver M: 11768289 Deliver Pk: 19186966 Pers Window: 15
Delta Mes: -3775388 Delta Pack: 0 Delta sec : -3743263
==================================
Monitor>
============================
Status at adisrv V 4.00. 0 (state 1, gstate 1) after 506411 seconds :
Membership : 5 procs in 3 segments, leader is sky
rounds : 5520958 tok_hurry : 1252416 memb change: 180
sent pack: 668241 recv pack : 2732585 retrans : 49
u retrans: 49 s retrans : 0 b retrans : 0
My_aru : 4054 Aru : 4054 Highest seq: 4054
Sessions : 1 Groups : 4831 Window : 60
Deliver M: 1797205 Deliver Pk: 3587259 Pers Window: 15
Delta Mes: -9971084 Delta Pack: 0 Delta sec : -3454309
==================================
Monitor>
============================
Status at biged V 4.00. 0 (state 1, gstate 1) after 7507526 seconds :
Membership : 5 procs in 3 segments, leader is sky
rounds : 51232685 tok_hurry : 12701175 memb change: 663
sent pack: 2311188 recv pack : 21107128 retrans : 239593
u retrans: 26105 s retrans : 199224 b retrans : 14264
My_aru : 4054 Aru : 4054 Highest seq: 4054
Sessions : 43 Groups : 4831 Window : 60
Deliver M: 15218043 Deliver Pk: 25955091 Pers Window: 15
Delta Mes: 13420838 Delta Pack: 0 Delta sec : 7001115
==================================
Ed Holyat
Open Link Financial, Inc.
(516) 227-6600 x 231
www.olf.com
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