JON resource group operation fails for available members when one or more agents for resource members are down

Issue

• Group operation stops if 2 group members' operations throw an error
• Group Availability Scan operation is failing
• Group operation stops and returns overall failure when a single member cannot be reached
• If some agents fail the group operation fails for all group members

• Receive error:

  Failed to submit invocation request. resource=[12104], operation=[executeAvailabilityScan], jobId=[rhq-resource-12104-773381133-1399554114351_=_rhq-group-10637_=_1399554114361]
  

• Server log contains the following error:

  ERROR [org.rhq.enterprise.server.operation.GroupOperationJob] Failed to execute scheduled operation [GroupOperationSchedule: group=[ResourceGroup[id=10001, name=All Agents, category=COMPATIBLE, type=RHQ Agent, isDynaGroup=false, isClusterGroup=false]], execution-order=[[Resource[id=10002, uuid=ad943ba6-04cc-4a08-be58-e45f50fc10ba, type={RHQAgent}RHQ Agent, key=Agent 01 on jboss-01.example.com RHQ Agent, name=RHQ Agent, version=4.4.0.JON312GA], Resource[id=10005, uuid=5e9c648c-b4ad-4b03-a8f3-1895b181d1aa, type={RHQAgent}RHQ Agent, key=Agent 02 on jboss-02.example.com RHQ Agent, name=RHQ Agent, version=4.4.0.JON312GA], Resource[id=10012, uuid=f497ca3f-5204-48ea-874a-cf80763f7f27, type={RHQAgent}RHQ Agent, key=Agent 03 on jboss-03.example.com RHQ Agent, name=RHQ Agent, version=4.4.0.JON312GA], Resource[id=10015, uuid=1363a659-eeb2-4d7b-b93d-0c4c2eb9c649, type={RHQAgent}RHQ Agent, key=Agent 04 on jboss-04.example.com RHQ Agent, name=RHQ Agent, version=4.4.0.JON312GA]]], halt-on-failure=[false],job-name=[rhq-group-10001-773381133-1401898634149], job-group=[rhq-group-10001], operation-name=[executeAvailabilityScan], subject=[Subject[id=2,name=rhqadmin]], description=[null]]
  javax.ejb.EJBException: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.rhq.core.domain.operation.GroupOperationHistory.resourceOperationHistories, no session or session was closed
  

• Resource operation status is stuck In Progress