[jboss-jira] [JBoss JIRA] (WFLY-5453) NPE during backup activation in collocated HA topology

[Jeff Mesnil (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-5453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115344#comment-13115344 ] 

Jeff Mesnil commented on WFLY-5453:
-----------------------------------

The NPE is on the replicaPolicy's replicatedPolicy.
The issue looks to be on the creation of the replicaPolicy that is using the no-op ctor  in org.apache.activemq.artemis.core.config.ConfigurationUtils#getHAPolicy when creating a COLOCATED policy with backup.

If we explicitly create a backup configuration, the NPE no longer occurs:

{noformat}
                <replication-colocated backup-port-offset="50" request-backup="true">
                    <slave/>
                </replication-colocated>
{noformat}

Note that in this case, the backup configuration is made only of default values.


> NPE during backup activation in collocated HA topology
> ------------------------------------------------------
>
>                 Key: WFLY-5453
>                 URL: https://issues.jboss.org/browse/WFLY-5453
>             Project: WildFly
>          Issue Type: Bug
>          Components: JMS
>    Affects Versions: 10.0.0.CR2
>            Reporter: Miroslav Novak
>            Assignee: Clebert Suconic
>            Priority: Blocker
>         Attachments: standalone-full-ha-1.xml, standalone-full-ha-2.xml
>
>
> If there are 2 EAP 7.0.0.DR11(Artemis 1.1.0) in collocated HA topology with replicated journal then backup does not activate after one server is killed. There is NPE in log of 2nd EAP server:
> {code}
> 10:13:12,231 ERROR [org.apache.activemq.artemis.core.server] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) AMQ224000: Failure in initialisation: java.lang.NullPointerException
> 	at org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:235)
> 	at java.lang.Thread.run(Thread.java:745)
> 10:13:12,235 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) java.lang.NullPointerException
> 10:13:12,235 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) 	at org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:235)
> 10:13:12,236 ERROR [stderr] (AMQ119000: Activation for server ActiveMQServerImpl::serverUUID=null) 	at java.lang.Thread.run(Thread.java:745)
> {code}
> Attaching configuration of both of the servers.



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