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In this section, we will configure data sources to allow the manager node to point to the central database, enable the manager node for clustering, change the port offset, and map the host names to IPs.

Configuring the data

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source

1. Make sure that you have copied the MySQL JDBC driver JAR to the manager node as described in Creating an ESB Cluster.
2. Open the master-datasources.xml file located in the <ESB_MANAGER_HOME>/repository/conf/datasources/ directory.
3. Locate the WSO2_CARBON_DB data source configurations and change them as follows:

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You configure worker nodes in very much the same way as you configured the manager node. Be sure to follow these steps for each worker node in the cluster. 

Configuring the data source

You configure the data source to connect to the central database. Because the data source changes are the same for all worker nodes, you can configure this file on one node and then copy it to the other worker nodes.

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