[jboss-jira] [JBoss JIRA] (WFLY-8087) Statistics Resources are being created without a corresponding ManagementResourceRegistration

[Brian Stansberry (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-8087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13362785#comment-13362785 ] 

Brian Stansberry commented on WFLY-8087:
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A bit more on why this happens.

We don't know if the statistics resource is going to be needed until Stage.RUNTIME, as the statistics-enabled attribute allows expressions. Plus, we don't know the exact statistics that will be available until runtime, as those are dependent on the DS/RA implementation. So, the MRR is not registered until RUNTIME. But we don't allow Resource tree changes after Stage.MODEL, and the MSC Service that does the MRR reg can't safely hold a ref to the Resource tree beyond the scope of one op anyway (since a later write op will clone the tree leaving the service with an stale copy.) So to work around this the child statistics resource is always added.

A partial improvement on this is to not add it on an HC, since it's never relevant there and the MRR will never be added. My PR does that.

> Statistics Resources are being created without a corresponding ManagementResourceRegistration
> ---------------------------------------------------------------------------------------------
>
>                 Key: WFLY-8087
>                 URL: https://issues.jboss.org/browse/WFLY-8087
>             Project: WildFly
>          Issue Type: Bug
>          Components: JCA, JMS
>            Reporter: Brian Stansberry
>            Assignee: Brian Stansberry
>
> While working on WFCORE-2286 I discovered that there are resources in the tree, at least on the DC, for which there is no corresponding MRR. I believe [~pferraro] in some recent work he's done has stumbled on a similar thing.
> I found there were no MRRs for
> /profile=*/subsystem=messaging-activemq/server=*/pooled-connection-factory=*/statistics=pool
> /profile=*/subsystem=datasources/data-source=*/statistics=jdbc
> /profile=*/subsystem=datasources/data-source=*/statistics=pool
> I expect the latter two would be repeated for xa-data-source=*
> Probably the lack of MRR is correct and the problem is the existence of the resource. 



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