Agents not showing any data in metric view.
Analysis from thread dumps:
PO mailman threads are blocked on AgentBridgeService resulting in disruption in communication.
[PO:WatchedAgentPO Mailman 5] [Manager.Agent] An inconsistent state between EM and LB for agent
This problem is related to more agents with same name (host + process + name). It should be an edge case and the agents should be configured properly.
Solution - increase EM's mailman count via property introscope.enterprisemanager.agent.mailmen =64 and restart EM