Apache Tomcat で MySQL データソースを設定する

Step 3. Configure Tomcat

1. If you are using the Confluence distribution, edit the conf/server.xml file in your Tomcat installation. If you are running your own Tomcat instance, edit the XML file where you declared the Confluence Context descriptor.

2. If editing conf/server.xml, find the following lines:

   <Context path="" docBase="../confluence" debug="0" reloadable="true">
       <!-- Logger is deprecated in Tomcat 5.5. Logging configuration for Confluence is specified in confluence/WEB-INF/classes/log4j.properties -->
   

3. Within the Context tags, directly after the opening <Context.../> line, insert the DataSource Resource tag:

   <Resource name="jdbc/confluence" auth="Container" type="javax.sql.DataSource"
            username="yourusername"
            password="yourpassword"
            driverClassName="com.mysql.jdbc.Driver"
            url="jdbc:mysql://localhost:3306/confluence?useUnicode=true&amp;characterEncoding=utf8"
            maxActive="15"
            maxIdle="7"
            defaultTransactionIsolation="READ_COMMITTED"
            validationQuery="Select 1" />
   

   • Replace the username and password parameters with the correct values for your database.
   • In the url parameter, replace the word 'confluence' with the name of the database your Confluence data will be stored in.
   • If you plan to use non-Latin characters, add "&useUnicode=true&characterEncoding=utf8" on the end of the above URL.

注意

• If switching from a direct JDBC connection to a datasource connection, you can find the above details in your <CONFLUENCE_HOME>/confluence.cfg.xml file.

• Why is the validationQuery element needed? When a database server reboots, or there is a network failure, all the connections in the connection pool are broken and this normally requires an application server reboot. However, the Commons DBCP (Database Connection Pool) which is used by the Tomcat application server can validate connections before issuing them by running a simple SQL query, and if a broken connection is detected, a new one is created to replace it. To do this, you will need to set the validationQuery option on the database connection pool.

• The configuration properties for Tomcat's standard datasource resource factory (org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory) are as follows:
  • driverClassName – Fully qualified Java class name of the JDBC driver to be used.
  • maxActive – The maximum number of active instances that can be allocated from this pool at the same time.
  • maxIdle – The maximum number of connections that can sit idle in this pool at the same time.
  • maxWait – The maximum number of milliseconds that the pool will wait (when there are no available connections) for a connection to be returned before throwing an exception.
  • password – Database password to be passed to your JDBC driver.
  • url – Connection URL to be passed to your JDBC driver. (For backwards compatibility, the property driverName is also recognised.)
  • user – Database username to be passed to your JDBC driver.
  • validationQuery – SQL query that can be used by the pool to validate connections before they are returned to the application. If specified, this query must be an SQL SELECT statement that returns at least one row.

ステップ 4. Confluence Web アプリケーションを設定する

1. Edit this file in your Confluence installation: <CONFLUENCE_INSTALLATION>/confluence/WEB-INF/web.xml.

2. Insert the following element just before </web-app> near the end of the file:

   <resource-ref>
     <description>Connection Pool</description>
     <res-ref-name>jdbc/confluence</res-ref-name>
     <res-type>javax.sql.DataSource</res-type>
     <res-auth>Container</res-auth>
   </resource-ref>
   

既存の Confluence インストールを Tomcat データソースを使用するように変更する場合：

1. <CONFLUENCE_HOME>/confluence.cfg.xml ファイルを編集します。
2. Delete any line that contains a property that begins with hibernate.

3. Insert the following at the start of the <properties> section.

   <property name="hibernate.setup"><![CDATA[true]]></property>
   <property name="hibernate.dialect"><![CDATA[net.sf.hibernate.dialect.MySQLDialect]]></property>
   <property name="hibernate.connection.datasource"><![CDATA[java:comp/env/jdbc/confluence]]></property>
   

Step 5. Restart Tomcat

Run bin/startup.sh or bin/startup.bat to start Tomcat with the new settings.