http://tomcat.apache.org/migration-8.html#Database_Connection_Pooling Documents: The maxActive configuration option has been renamed to maxTotal http://tomcat.apache.org/tomcat-8.0-doc/jdbc-pool.html Documents: (int) The maximum number of active connections that can be allocated from this pool at the same time. The default value is 100 There is no mention of maxTotal, and observation (via JMX) appears as though the default is 8 , not 100.
> http://tomcat.apache.org/migration-8.html#Database_Connection_Pooling > Documents: The maxActive configuration option has been renamed to maxTotal The above documentation talks about DBCP pool. > http://tomcat.apache.org/tomcat-8.0-doc/jdbc-pool.html The above documentation page is about JDBC pool. The "Common Attributes" table on JDBC pool page can be improved. It talks about comparing the tomcat-jdbc pool with commons-dbcp, but Tomcat 8 is bundled with commons-dbcp2.