[jboss-jira] [JBoss JIRA] (WFCORE-2091) Mixed domain with EAP 6 slaves: data sources operations broken

[Lin Gao (JIRA)]

    [ https://issues.jboss.org/browse/WFCORE-2091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13335665#comment-13335665 ] 

Lin Gao commented on WFCORE-2091:
---------------------------------

The problem in this case is that there is a +RejectAttributeChecker+ registered for attribute: +connection-url+ under resource: +/subsystem=datasources/data-source=ExampleDS+, when 
{code:java}
/host=eap640/server=server-one/subsystem=datasources/data-source=ExampleDS:test-connection-in-pool
{code}
is called, this +test-connection-in-pool+ operation is to be transformed, which delegates to [AttributeTransformationRule.doTransform()|https://github.com/wildfly/wildfly-core/blob/master/controller/src/main/java/org/jboss/as/controller/transform/description/AttributeTransformationRule.java#L139-L150] method. This method checks whether the +connection-url+ attribute should be rejected or not. Apparently, this operation does not have a parameter named +connection-url+, so it is wrong to be rejected here.

> Mixed domain with EAP 6 slaves: data sources operations broken
> --------------------------------------------------------------
>
>                 Key: WFCORE-2091
>                 URL: https://issues.jboss.org/browse/WFCORE-2091
>             Project: WildFly Core
>          Issue Type: Bug
>          Components: Domain Management
>            Reporter: Lin Gao
>            Assignee: Lin Gao
>            Priority: Blocker
>
> Run a mixed domain where EAP 7.1.0.DR9 is the master and EAP 6.4.0/6.3.0/6.2.0 is a slave server. Operations on data sources are broken due to incompatibility of models:
> {noformat}
> [domain at 127.0.0.100:9990 /] /host=eap640/server=server-one/subsystem=datasources/data-source=ExampleDS:test-connection-in-pool
> {
>     "outcome" => "failed",
>     "failure-description" => "WFLYCTL0297: Transforming operation {
>     \"address\" => [
>         (\"host\" => \"eap640\"),
>         (\"server\" => \"server-one\"),
>         (\"subsystem\" => \"datasources\"),
>         (\"data-source\" => \"ExampleDS\")
>     ],
>     \"operation\" => \"test-connection-in-pool\",
>     \"operation-headers\" => {
>         \"caller-type\" => \"user\",
>         \"access-mechanism\" => \"NATIVE\",
>         \"domain-uuid\" => \"ae186a65-8c76-41d0-bd23-79154b5f92f7\"
>     }
> } at resource [
>     (\"host\" => \"eap640\"),
>     (\"server\" => \"server-one\"),
>     (\"subsystem\" => \"datasources\"),
>     (\"data-source\" => \"ExampleDS\")
> ] to subsystem 'datasources' model version '1.3.0' -- attributes [connection-url] WFLYCTL0336: The following attributes are nillable in the current model but must be defined in the target model version: [connection-url]",
>     "rolled-back" => true,
>     "result" => [true]
> }
> {noformat}
> The fix for JBEAP-5770 seems to be the cause.



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