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

[Gagannoor Singh (Jira)]

Gagannoor Singh created WFLY-13038:
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             Summary: 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


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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