@After
  public void teardown() throws AmbariException, SQLException {
    H2DatabaseCleaner.clearDatabaseAndStopPersistenceService(injector);
  }
Tests AMBARI-9738 which produced a deadlock during read and writes between
{@link ClustersImpl} and {@link ClusterImpl}.
ambari-server/src/test/java/org/apache/ambari/server/state/cluster/ClustersDeadlockTest.java