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    <p>The text describes three solutions to prevent connection aborts:</p> <ol> <li><p>Configure the connection string with <code>autoReconnect=true</code>. This is a property of the URL connection string, which works at the driver level. You need to change the connection string in the data source configuration.</p> <pre><code>url="jdbc:mysql://localhost:3306/confluence?autoReconnect=true" </code></pre></li> <li><p>Increase the timeout. This is normally a property of the database. You can increase this value to see if you get less connection abort.</p></li> <li><p>Configure the connection pool to test the connection validatiy. This is done at the pool, not a the driver level. This will depend on the data source implementation that you use. But it should be configurable in the property of the data source, if you use a pooled one, e.g. <a href="http://sourceforge.net/projects/c3p0/" rel="noreferrer">c3p0</a>.</p> <ul> <li><a href="https://stackoverflow.com/questions/520585/connection-pooling-options-with-jdbc-dbcp-vs-c3p0">Connection pooling options with JDBC: DBCP vs C3P0</a></li> <li><a href="http://snipplr.com/view/14725/c3p0-datasource-config-connectionpool/" rel="noreferrer">http://snipplr.com/view/14725/c3p0-datasource-config-connectionpool/</a></li> <li><a href="http://www.mchange.com/projects/c3p0/index.html#configuring_connection_testing" rel="noreferrer">http://www.mchange.com/projects/c3p0/index.html#configuring_connection_testing</a></li> </ul></li> </ol> <p>Additionnal comments:</p> <ul> <li>The datasource/pool can also have a timeout, which corresponds to the time an idle connection remains in the pool. To not confused with the db timeout.</li> <li>There are several way to test the validity of a connection. One common way is to have dummy test table. The pool will issue a select on the dummy test table to see if the connection is still OK. </li> </ul>
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    1. COThe MySQL driver does not properly implement the autoReconnect option. The first request will fail, and the driver attempts to reestablish the connection AFTERWARDS.
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