https://github.com/EnMasseProject/enmasse/issues/5223

For deployments with large numbers of addresses/connections, the stats collections in the agent may take significant time. If the time take exceeds the stats collection period (hardcoded 10s), the code causes a further stats collection cycle to be begin. As more addresses/connections increase so does the potential for the concurrence, ultimately leading to spiking memory and OOM conditions.