[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_12364895 ] 
            
Bela Ban commented on JGRP-455:
-------------------------------

Side effect on FC: since a receiver would not deliver any more data, credit requests would arrive at a receiver after FC.max_block_time and (because we send back the full credits after two times), after time there would be an OOME

> 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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