[jboss-jira] [JBoss JIRA] Updated: (JGRP-1031) Asymmetric link down causes endless retransmission after merge

[Bela Ban (JIRA)]

     [ https://jira.jboss.org/jira/browse/JGRP-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-1031:
---------------------------

    Attachment: udp.xml


> Asymmetric link down causes endless retransmission after merge
> --------------------------------------------------------------
>
>                 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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