title: Too many connections are getting created
body: <p>I have gone through the HikariCP connection pool, I could say this is awesome as I have seen good performance. But here my concern is I think it is taking too many connections.</p>
  
  <p><strong>Scenario:</strong>
  I have list object which contains 10004 records and when I ran insert query it is taking 13 seconds to complete the operation.</p>
  
  <p><strong>DB Properties:</strong></p>
  
  <pre><code>final HikariDataSource dataSource = new HikariDataSource();
  dataSource.setMaximumPoolSize(100);
  dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
  dataSource.setJdbcUrl("jdbc:oracle:thin:@g9u1769.houston.hpecorp.net:1525:ODSDBD");
  dataSource.setUsername("Solid_batch1");
  dataSource.setPassword("solid_batch123");
  dataSource.setMaxLifetime(30000);
  </code></pre>
  
  <p><strong>log:</strong></p>
  
  <pre><code>2016-08-27 11:26:01.779 [] [] [] [Hikari connection adder (pool HikariPool-0)] DEBUG com.zaxxer.hikari.pool.HikariPool - HikariPool-0 - Added connection oracle.jdbc.driver.T4CConnection@221e8d6a
  2016-08-27 11:26:04.204 [] [] [] [Hikari connection adder (pool HikariPool-0)] DEBUG com.zaxxer.hikari.pool.HikariPool - HikariPool-0 - Added connection oracle.jdbc.driver.T4CConnection@3c4ecbf
  2016-08-27 11:26:06.620 [] [] [] [Hikari connection adder (pool HikariPool-0)] DEBUG com.zaxxer.hikari.pool.HikariPool - HikariPool-0 - Added connection oracle.jdbc.driver.T4CConnection@7592f187
  2016-08-27 11:26:09.038 [] [] [] [Hikari connection adder (pool HikariPool-0)] DEBUG com.zaxxer.hikari.pool.HikariPool - HikariPool-0 - Added connection oracle.jdbc.driver.T4CConnection@22f125f
  2016-08-27 11:26:11.455 [] [] [] [Hikari connection adder (pool HikariPool-0)] DEBUG com.zaxxer.hikari.pool.HikariPool - HikariPool-0 - Added connection oracle.jdbc.driver.T4CConnection@605f1c17
  2016-08-27 11:26:13.869 [] [] [] [Hikari connection adder (pool HikariPool-0)] DEBUG com.zaxxer.hikari.pool.HikariPool - HikariPool-0 - Added connection oracle.jdbc.driver.T4CConnection@42d5b6f
  2016-08-27 11:26:13.975 [] [] [] [main] WARN  c.h.i.i.d.manager.dao.DaoService - detail query : 13
  </code></pre>
  
  <p>Can anyone help me in reducing the connection creation.</p>