[jboss-jira] [JBoss JIRA] (WFLY-13038) Undertow null pointer exception after changing to random election policy

[Michal Petrov (Jira)]

    [ https://issues.redhat.com/browse/WFLY-13038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14010318#comment-14010318 ] 

Michal Petrov commented on WFLY-13038:
--------------------------------------

[~gagannoor.singh], is this still an issue? I'm unable to replicate on WildFly 18.

> Undertow null pointer exception after changing to random election policy
> ------------------------------------------------------------------------
>
>                 Key: WFLY-13038
>                 URL: https://issues.redhat.com/browse/WFLY-13038
>             Project: WildFly
>          Issue Type: Bug
>          Components: Web (Undertow)
>    Affects Versions: 16.0.0.Final
>            Reporter: Gagannoor Singh
>            Assignee: Flavia Rainone
>            Priority: Major
>
> After changing the singleton subsystem to random election policy getting undertow null pointer exception in logs after clicking deployments->server groups-> "server group name"  of HAL management console and it shows zero deployments.
> We are having a clustered environment with 3 nodes. 
> Logs:
> ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 30) WFLYCTL0013: Operation ("read-attribute") failed - address: ([
> ("deployment" => "masterdata-ei-cvpartner-1.17-SNAPSHOT.war"),
> ("subsystem" => "undertow")
> ]): java.lang.NullPointerException
> Singleton Setting in domain.xml :
> <subsystem xmlns="urn:jboss:domain:singleton:1.0">
> <singleton-policies default="default">
> <singleton-policy name="default" cache-container="server">
> <random-election-policy/>
> </singleton-policy>
> </singleton-policies>
> </subsystem>



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