[jboss-jira] [JBoss JIRA] Commented: (JGRP-455) Problem with retransmission: message not found

[Bela Ban (JIRA)]

    [ http://jira.jboss.com/jira/browse/JGRP-455?page=comments#action_12364995 ] 
            
Bela Ban commented on JGRP-455:
-------------------------------

Results (1K and 5K):
-- results:

10.68.12.33:7800 (myself):
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1986111ms, msgs/sec=15104.9, throughput=75.52MB

10.68.20.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1986050ms, msgs/sec=15105.36, throughput=75.53MB

10.68.8.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1986069ms, msgs/sec=15105.22, throughput=75.53MB

10.68.16.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1986148ms, msgs/sec=15104.61, throughput=75.52MB

10.68.4.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1986112ms, msgs/sec=15104.89, throughput=75.52MB

10.68.0.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1986093ms, msgs/sec=15105.03, throughput=75.53MB

combined: 15105 msgs/sec averaged over all receivers (throughput=75.52MB/sec)



-- results:

10.68.12.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1682369ms, msgs/sec=17832, throughput=89.16MB

10.68.20.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1682386ms, msgs/sec=17831.82, throughput=89.16MB

10.68.8.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1682349ms, msgs/sec=17832.21, throughput=89.16MB

10.68.16.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1682134ms, msgs/sec=17834.49, throughput=89.17MB

10.68.0.33:7800:
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1682365ms, msgs/sec=17832.04, throughput=89.16MB

10.68.4.33:7800 (myself):
num_msgs_expected=30000000, num_msgs_received=30000000 (loss rate=0.0%), receive
d=150GB, time=1682362ms, msgs/sec=17832.07, throughput=89.16MB

combined: 17832.44 msgs/sec averaged over all receivers (throughput=89.16MB/sec)


> Problem with retransmission: message not found
> ----------------------------------------------
>
>                 Key: JGRP-455
>                 URL: http://jira.jboss.com/jira/browse/JGRP-455
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.4.1 SP1
>            Reporter: Bela Ban
>         Assigned To: Bela Ban
>            Priority: Blocker
>             Fix For: 2.5, 2.4.1 SP4
>
>         Attachments: tmp.txt, tmp2.txt, udp-atl.xml
>
>
> Sometimes a sender cannot find a message with a seqno as requested by a receiver. The seqno requested (47176) was already purged, sent_msgs:  [48059 - 48090] (32)
> This could be either an issue in STABLE, which prematurely purges messages although not all members agreed on the highest seqnos seen, or NAKACK, which might incorrectly 'change' seqnos. Very hard to reproduce !
> Trace:
> 42032 [ERROR] [OOB Thread,perf,10.68.32.33:32968] NAKACK.handleXmitReq(): - (requester=10.68.28.33:33763, local_addr=10.68.32.33:32968) message 10.68.32.33:32968::47176 not found in sent msgs [48059 - 48090] (32)

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