[jboss-jira] [JBoss JIRA] (AS7-5472) unavailable datasource statistics

[Brian Stansberry (JIRA)]

    [ https://issues.jboss.org/browse/AS7-5472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715757#comment-12715757 ] 

Brian Stansberry commented on AS7-5472:
---------------------------------------

Stefano, if the representation of this stuff looks right via the CLI, I suspect it's a problem in how the JMX view into the core management model is dealing with the description of datasource resources. When we added statistics=jdbc and statistics=pool to the description tree, it exposed a design flaw in what I originally did. The design was, for the "datasource" resource:

{code}
{
  "attributes" => { ... attributes },
  "operations" => { ... operations },
  "children" => {
    "statistics" => {
      "model-description" => {
         ... attributes, operations, children of generic 'statistics' children
      }
    }
  }
}
{code}

This design assumed that all children of type 'statistics' have the same model-description.

But in reality in some cases children are polymorphic, and for those we have:

{code}
{
  "attributes" => { ... attributes },
  "operations" => { ... operations },
  "children" => {
    "statistics" => {
      "jdbc" => {
        "model-description" => {
           ... attributes, operations, children of 'statistics=jdbc' children
        }
      },
      "pool" => {
        "model-description" => {
           ... attributes, operations, children of 'statistics=pool' children
        }
      }
    }
  }
}
{code}

This introduced another level that the JMX view logic probably doesn't handle. If the CLI view looks OK, I suggest you ping Kabir and I about this.
                
> unavailable datasource statistics
> ---------------------------------
>
>                 Key: AS7-5472
>                 URL: https://issues.jboss.org/browse/AS7-5472
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: JCA, JMX
>    Affects Versions: 7.1.2.Final (EAP)
>            Reporter: Mathieu Lachance
>            Assignee: Stefano Maestri
>            Priority: Minor
>
> In the java visual vm, in the mbean tab, under the "jboss.as:subsystem=datasources,data-source=MyDataSource" mbean, attribute "statistics" is marked as "Unavailable"
> When using the spy="true" attribute in the datasource subsystem in conjunction with the "org.jboss.jca" logger set as TRACE level in the logging subsystem, statistics are outputted as follow :
> Statistics:
>   ActiveCount: 1
>   AvailableCount: 99
>   AverageBlockingTime: 0
>   AverageCreationTime: 248
>   CreatedCount: 1
>   DestroyedCount: 0
>   MaxCreationTime: 248
>   MaxUsedCount: 1
>   MaxWaitCount: 0
>   MaxWaitTime: 0
>   TimedOut: 0
>   TotalBlockingTime: 0
>   TotalCreationTime: 248
> I would except to find those statistics available through separates jmx attributes when using the spy="true".

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