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Bela Ban commented on JGRP-1031:
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The fix was #2: to include both 202 *and* 201 as merge participants.
Asymmetric link down causes endless retransmission after merge
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Key: JGRP-1031
URL:
https://jira.jboss.org/jira/browse/JGRP-1031
Project: JGroups
Issue Type: Bug
Reporter: Bela Ban
Assignee: Bela Ban
Fix For: 2.8
Attachments: udp.xml
This is with FD only (don't use FD_ALL and remove FD_SOCK). The config is attached to
this case. We need to add <DISCARD use_gui="true"/> above UDP.
How to reproduce:
- Start 3 Draws:
draw -props ./udp.xml -name 202
draw -props ./udp.xml -name 201
draw -props ./udp.xml -name 203
- On 201: discard all traffic from 202
- Wait until the following views have been installed:
202: 202,203
201: 202,201,203
203: 202,203
Then enable reception of traffic on 201 from 202 again.
Then draw in all 3 instances. Looking at NAKACK, we'll see that the retransmission
table's size increases. We'll also see retransmission requests from 201 to 202
(for messages which seem to be in 202's sent-table !)
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