@Override
	public SystemDataModel getSystemDataModel(String ip, String name, String region) {
		return hazelcastService.submitToRegion(AGENT_EXECUTOR_SERVICE_NAME, new AgentStateTask(ip, name), region);
	}
Stop agent. If it's in cluster mode, it queue to agentRequestCache.
otherwise, it send stop message to the agent.

@param ip ip of agent to stop.
@param name host name of agent to stop.
ngrinder-controller/src/main/java/org/ngrinder/agent/service/AgentService.java