[jboss-jira] [JBoss JIRA] (WFLY-7912) It's not possible to change election-policy of singleton-policy

[Tomas Hofman (JIRA)]

Tomas Hofman created WFLY-7912:
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             Summary: It's not possible to change election-policy of singleton-policy
                 Key: WFLY-7912
                 URL: https://issues.jboss.org/browse/WFLY-7912
             Project: WildFly
          Issue Type: Bug
          Components: Clustering
    Affects Versions: 10.1.0.Final
            Reporter: Tomas Hofman
            Assignee: Paul Ferraro


Attempt to change election policy:

{code}
[standalone at localhost:9990 /] batch 
[standalone at localhost:9990 / #] /subsystem=singleton/singleton-policy=default/election-policy=simple:remove
[standalone at localhost:9990 / #] /subsystem=singleton/singleton-policy=default/election-policy=random:add
[standalone at localhost:9990 / #] run-batch 
{code}

results in

{code}
The batch failed with the following error (you are remaining in the batch editing mode to have a chance to correct the error): 
WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:
Step: step-2
Operation: /subsystem=singleton/singleton-policy=default/election-policy=random:add
Failure: WFLYCTL0158: Operation handler failed: org.jboss.msc.service.DuplicateServiceException: Service org.wildfly.clustering.singleton.policy.default.election-policy is already registered
{code}

The bug seems to be introduced by https://github.com/wildfly/wildfly/commit/605b22c30ae122492e7c019e330fea24e0206bb1



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