"rhq.ear/rhq-core-domain-ejb3.jar#rhqpu" resource unavailable in JBoss ON

Environment

• Red Hat JBoss Operations Network (ON) 3.2.0, 3.3.3
• JBoss ON Server is not restarted for a longer time period (~ 2 days)

Issue

• ERRORs in server.log:

    ...
    ERROR [org.jboss.as.controller.management-operation] (HttpManagementService-threads - 717) JBAS014612: Operation ("read-resource") failed - address: ([
        {"deployment" => "rhq.ear"},
        {"subdeployment" => "rhq-core-domain-ejb3.jar"},
        {"subsystem" => "jpa"},
        {"hibernate-persistence-unit" => "rhq.ear/rhq-core-domain-ejb3.jar#rhqpu"}
    ]): java.lang.StringIndexOutOfBoundsException: String index out of range: 0
    	at java.lang.String.charAt(String.java:658) [rt.jar:1.7.0_17]
    	at org.jboss.as.controller.PathElement.<init>(PathElement.java:103) [jboss-as-controller-7.2.1.F
    ...
  

• rhq.ear/rhq-core-domain-ejb3.jar#rhqpu resource unavailable

Resolution

This issue is resolved in JBoss ON 3.3 Update-05.

To workaround the issue, one of the following options will stop the error message from being logged in the server.log file:

1. Ignore the error as it will not cause any other issues and only impacts the reporting of availability on the inactive resource;
2. Disable the rhq.ear/rhq-core-domain-ejb3.jar#rhqpu resource so it's availability is not collected;
3. Have JBoss ON Server regularly restarted.

Root Cause

This error will happen when rhq.ear/rhq-core-domain-ejb3.jar#rhqpu resource (bean) is not active for a longer time period. In that case, this bean will be passivated and as such it's availability will be considered as DOWN although it is really UP.

This issue was captured as This content is not included.Red Hat Bugzilla 1028468.

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