public int getConnectionPoolAcquisitionSize() {
    return Integer.parseInt(getProperty(SERVER_JDBC_CONNECTION_POOL_AQUISITION_SIZE));
  }
Gets the number of connections that should be retrieved when the pool size
must increase. It's wise to set this higher than 1 since the assumption is
that a pool that needs to grow should probably grow by more than 1.
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java