HYD-2222 Asynchronous background request to avoid thread race condition in agent test.
HYD-2222 Asynchronous background request to avoid thread race condition in agent test.

Change-Id: Iadc3c79bfa8552bec7ad2912fd762dfe33b97938

intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre