private AccountStatsMySqlStore createAccountStatsMySqlStore() throws Exception {
    VerifiableProperties verifiableProperties = new VerifiableProperties(properties);
    return (AccountStatsMySqlStore) new AccountStatsMySqlStoreFactory(verifiableProperties,
        new ClusterMapConfig(verifiableProperties), new MetricRegistry()).getAccountStatsStore();
  }
Test to update container storage usage monthly base.
ambry-quota/src/integration-test/java/com/github/ambry/quota/storage/MySqlStorageUsageRefresherTest.java