[jboss-jira] [JBoss JIRA] Resolved: (JGRP-455) Problem with retransmission: message not found
[ http://jira.jboss.com/jira/browse/JGRP-455?page=all ]
Bela Ban resolved JGRP-455.
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Resolution: Done
Okay, tested some more with heavy loads (e.g. 8 nodes, ever node sending 8M 5K messages
with 500 threads): works fine. There are spurious retransmission requests, but while they
are annoying, they don't lead to incorrect behavior. This (528) issue will be tackled
in 2.6.
Problem with retransmission: message not found
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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: 2.4.1 SP4, 2.5
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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