[jboss-jira] [JBoss JIRA] (WFLY-6749) Cluster failover doesn't work on windows when network is disabled on a node

[Preeta Kuruvilla (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-6749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13256113#comment-13256113 ] 

Preeta Kuruvilla commented on WFLY-6749:
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Thanks a lot Paul for responding with the info. 

It was one of our customers that tried the failover simulation this way - by disabling the network.

As per link that you have provided, jgroups protocols (FD, and FD_ALL) are involved in Failover detection (Every member periodically multicasts a heartbeat).

We have Cache replication in Wildfly cluster which also uses jgroups and we do it the Multicast way. So when we disable the network on a node since the services on the node is not stopped, perhaps the multicasting is still happening and hence the failover detection doesn’t work. I still need to go through the link in detail.

Thanks,
Preeta
Cisco Systems.


> Cluster failover doesn't work on windows when network is disabled on a node
> ---------------------------------------------------------------------------
>
>                 Key: WFLY-6749
>                 URL: https://issues.jboss.org/browse/WFLY-6749
>             Project: WildFly
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 8.2.0.Final
>            Reporter: Preeta Kuruvilla
>            Assignee: Paul Ferraro
>            Priority: Critical
>
> This is about a two VM Wildfly cluster on windows environment. In order to test the failover, the team has disabled the network on one node. However the failover is not happening and the application functionality on the cluster is hampered as a result.



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