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  1. Open the <EI_HOME>/conf/datasources/master-datasources.xml file, and configure the datasources to point to the relevant databases for each ESB node. 

    Tip
    • Replace the username, password, and database URL of your MySQL environment  accordingly.
    • If you have not enabled SSL, append the useSSL=false property to the value of the <url> property.
    Localtab Group
    Localtab
    titleESB Node 1

    For ESB node 1, configure the datasources to point to the REGISTRY_LOCAL1WSO2_REGISTRY_DB, and WSO2_USER_DB databases as follows:

    Code Block
    languagexml
    <datasources-configuration xmlns:svns="http://org.wso2.securevault/configuration"> 
         <providers> 
            <provider>org.wso2.carbon.ndatasource.rdbms.RDBMSDataSourceReader</provider> 
        </providers> 
        <datasources> 
            <datasource> 
                <name>REGISTRY_LOCAL1</name> 
                <description>The datasource used for registry- local</description> 
                <jndiConfig> 
                    <name>jdbc/WSO2CarbonDB</name> 
                </jndiConfig> 
                <definition type="RDBMS"> 
                    <configuration> 
                        <url>jdbc:mysql://carbondb.mysql-wso2.com:3306/REGISTRY_LOCAL1?autoReconnect=true</url> 
                        <username>regadmin</username> 
                        <password>regadmin</password> 
                        <driverClassName>com.mysql.jdbc.Driver</driverClassName> 
                        <maxActive>50</maxActive> 
                        <maxWait>60000</maxWait> 
                        <testOnBorrow>true</testOnBorrow> 
                        <validationQuery>SELECT 1</validationQuery> 
                        <validationInterval>30000</validationInterval> 
                    </configuration> 
                </definition> 
            </datasource> 
            <datasource> 
                <name>REGISTRY_DB</name> 
                <description>The datasource used for registry- config/governance</description> 
                <jndiConfig> 
                    <name>jdbc/WSO2RegistryDB</name> 
                </jndiConfig> 
                <definition type="RDBMS"> 
                    <configuration> 
                        <url>jdbc:mysql://carbondb.mysql-wso2.com:3306/REGISTRY_DB?autoReconnect=true</url> 
                        <username>regadmin</username> 
                        <password>regadmin</password> 
                        <driverClassName>com.mysql.jdbc.Driver</driverClassName> 
                        <maxActive>50</maxActive> 
                        <maxWait>60000</maxWait> 
                        <testOnBorrow>true</testOnBorrow> 
                        <validationQuery>SELECT 1</validationQuery> 
                        <validationInterval>30000</validationInterval> 
                    </configuration> 
                </definition> 
            </datasource> 
             <datasource> 
                <name>WSO2_USER_DB</name> 
                <description>The datasource used for registry and user manager</description> 
                <jndiConfig> 
                    <name>jdbc/WSO2UMDB</name> 
                </jndiConfig> 
                <definition type="RDBMS"> 
                    <configuration> 
                        <url>jdbc:mysql://carbondb.mysql-wso2.com:3306/WSO2_USER_DB</url> 
                        <username>regadmin</username> 
                        <password>regadmin</password> 
                        <driverClassName>com.mysql.jdbc.Driver</driverClassName> 
                        <maxActive>50</maxActive> 
                        <maxWait>60000</maxWait> 
                        <testOnBorrow>true</testOnBorrow> 
                        <validationQuery>SELECT 1</validationQuery> 
                        <validationInterval>30000</validationInterval> 
                    </configuration> 
                </definition> 
            </datasource> 
       </datasources> 
    </datasources-configuration>
    Localtab
    titleESB Node 2

    For node 2, configure the datasources to point to the REGISTRY_LOCAL2WSO2_REGISTRY_DB, and WSO2_USER_DB databases as shown below. Change the username, password, and database URL as needed for your environment.

    Code Block
    languagexml
    <datasources-configuration xmlns:svns="http://org.wso2.securevault/configuration">     <providers>
            <provider>org.wso2.carbon.ndatasource.rdbms.RDBMSDataSourceReader</provider>
        </providers>
        <datasources>
            <datasource>
                <name>REGISTRY_LOCAL2</name>
                <description>The datasource used for registry- local</description>
                <jndiConfig>
                    <name>jdbc/WSO2CarbonDB</name>
                </jndiConfig>
                <definition type="RDBMS">
                    <configuration>
                        <url>jdbc:mysql://carbondb.mysql-wso2.com:3306/REGISTRY_LOCAL2?autoReconnect=true</url>
                        <username>regadmin</username>
                        <password>regadmin</password>
                        <driverClassName>com.mysql.jdbc.Driver</driverClassName>
                        <maxActive>50</maxActive>
                        <maxWait>60000</maxWait>
                        <testOnBorrow>true</testOnBorrow>
                        <validationQuery>SELECT 1</validationQuery>
                        <validationInterval>30000</validationInterval>
                    </configuration>
                </definition>
            </datasource>
            <datasource>
                <name>REGISTRY_DB</name>
                <description>The datasource used for registry- config/governance</description>
                <jndiConfig>
                    <name>jdbc/WSO2RegistryDB</name>
                </jndiConfig>
                <definition type="RDBMS">
                    <configuration>
                        <url>jdbc:mysql://carbondb.mysql-wso2.com:3306/REGISTRY_DB?autoReconnect=true</url>
                        <username>regadmin</username>
                        <password>regadmin</password>
                        <driverClassName>com.mysql.jdbc.Driver</driverClassName>
                        <maxActive>50</maxActive>
                        <maxWait>60000</maxWait>
                        <testOnBorrow>true</testOnBorrow>
                        <validationQuery>SELECT 1</validationQuery>
                        <validationInterval>30000</validationInterval>
                    </configuration>
                </definition>
            </datasource>
             <datasource>
                <name>WSO2_USER_DB</name>
                <description>The datasource used for registry and user manager</description>
                <jndiConfig>
                    <name>jdbc/WSO2UMDB</name>
                </jndiConfig>
                <definition type="RDBMS">
                    <configuration>
                        <url>jdbc:mysql://carbondb.mysql-wso2.com:3306/WSO2_USER_DB</url>
                        <username>regadmin</username>
                        <password>regadmin</password>
                        <driverClassName>com.mysql.jdbc.Driver</driverClassName>
                        <maxActive>50</maxActive>
                        <maxWait>60000</maxWait>
                        <testOnBorrow>true</testOnBorrow>
                        <validationQuery>SELECT 1</validationQuery>
                        <validationInterval>30000</validationInterval>
                    </configuration>
                </definition>
            </datasource>
       </datasources>
    </datasources-configuration>
  2. Add the following configuration in the <EI_HOME>/conf/user-mgt.xml file to configure the user stores. 

    Tip

    Enter the datasource information for the user store that you configured in the <EI_HOME>/conf/datasources/master-datasources.xml file. You can change the admin username and password as well. However, you should do this before starting the server.

    Code Block
    languagexml
    <Configuration>
      <AddAdmin>true</AddAdmin>
      <AdminRole>admin</AdminRole>
      <AdminUser>
        <UserName>admin</UserName>
        <Password>admin</Password>
      </AdminUser>
      <EveryOneRoleName>everyone</EveryOneRoleName>
      <Property name="dataSource">jdbc/WSO2UMDB</Property>
    </Configuration>
  3. Update the dataSource property in all nodes in the <EI_HOME>/conf/user-mgt.xml file as shown below to configure the datasource: 

    Code Block
    <Property name="dataSource">jdbc/WSO2UMDB</Property>
  4. Open the <EI_HOME>/conf/axis2/axis2.xml file for each of the two ESB nodes, and appply the following cluster configurations:

    • Enable clustering for each node as follows:

      Code Block
      <clustering class="org.wso2.carbon.core.clustering.hazelcast.HazelcastClusteringAgent" enable="true">

       

    • Set the membership scheme to "wka" to enable the well-known address registration method as shown below. Each node sends cluster initiation messages to the WKA members. 

      Code Block
      <parameter name="membershipScheme">wka</parameter>
    • Specify the name of the cluster to which the node joins:

      Code Block
      <parameter name="domain">wso2.ei.domain</parameter>
    • Specify the host to communicate cluster messages. For example, if the IP addresses of the two ESB nodes are xxx.xxx.xxx.xx1 and xxx.xxx.xxx.xx2, they should be specified in the configuration as shown below.

      Localtab Group
      Localtab
      titleFor ESB Node 1
      Code Block
      languagexml
      <parameter name="localMemberHost">xxx.xxx.xxx.xx1</parameter>
      Localtab
      titleFor ESB Node 2
      Code Block
      languagexml
      <parameter name="localMemberHost">xxx.xxx.xxx.xx2</parameter>
    • Specify the port to communicate cluster messages as follows:

      Code Block
      <parameter name="localMemberPort">4100</parameter>
      Info

      This port number is not affected by the port offset value specified in the <EI_HOME>/conf/carbon.xml file. If this port number is already assigned to another server, the clustering framework automatically increments this port number. However, if there are two servers running on the same machine, ensure that a unique port is set for each server.

    • Specify the well-known members in the cluster. For example, when you configure one ESB node, you need to specify the other nodes in the cluster as well-known members as shown below. The port value for the WKA node must be the same value as it's localMemberPort (in this case it is 4100).

      You can also use IP address ranges for the hostname (e.g.,   192.168.1.2-10). However, you can define a range only for the last portion of the IP address. Smaller the range, the faster the time it takes to discover members since each node has to scan a lesser number of potential members.

      Info
      Localtab
      titleFor ESB Node 1
      Localtab Group

      The best practice is to add all the members (including itself) in all the nodes to avoid any conflicts in configurations.

      <members>
      
          <member>
      		<hostName>xxx.xxx.xxx.
      xx1<
      xx2</hostName>
      		<port>4100</port> 
      	</member>
      </members>
      Code Block
      languagexml
      <members>
      	<member>
      		<hostName>xxx.xxx.xxx.
      xx2<
      xx1</hostName>
      		<port>4100</port> 
      	</member>
      </members>
      Localtab
      titleFor ESB Node 2
      Code Block
      languagexml
    • Uncomment and edit the WSDLEPRPrefix element under org.apache.synapse.transport.passthru.PassThroughHttpListener in the transportReceiver section.

      Code Block
      languagexml
      <parameter name="WSDLEPRPrefix" locked="false">http://ei.wso2.com:80</parameter> 
    • Uncomment and edit the WSDLEPRPrefix element under org.apache.synapse.transport.passthru.PassThroughHttpSSLListener in the transportReceiver section.

      Code Block
      languagexml
      <parameter name="WSDLEPRPrefix" locked="false">https://ei.wso2.com:443</parameter>
  5. Specify the port offset value in the <EI_HOME>/conf/carbon.xml file.

    Warning

    This step is optional and only required if all server instances are running on the same machine. This is not recommended for production environments. Change all ports used in your configurations based on the offset value if you are setting a port offset.

    Expand
    titleClick here for more information on configuring the port offset.

    When you run multiple products/clusters or multiple instances of the same product on the same server or virtual machines (VMs), change their default ports with an offset value to avoid port conflicts. An offset defines the number by which all ports in the runtime (e.g., HTTP(S) ports) are increased. For example, if the default HTTP port is 9763 and the offset is 1, the effective HTTP port will change to 9764. For each additional product instance, set the port offset to a unique value. The offset of the default ports is zero.

    The port value will automatically increase as shown in the Port Value column in the following table, allowing all five WSO2 product instances or servers to run on the same machine.

    WSO2 product instance

    Port Offset

    Port Value

    WSO2 server 1

    0

    9443

    WSO2 server 2

    1

    9444

    WSO2 server 3

    2

    9445

    WSO2 server 4

    3

    9446

    WSO2 server 5

    4

    9447

    Code Block
    languagexml
    <Ports>
    	...
    	<Offset>0</Offset>
    	...
    </Ports>
  6. Edit the <EI_HOME>/conf/carbon.xml file as follows to configure the hostname: <HostName>ei.wso2.com</HostName>

  7. Add the host entries to your DNS, or “/etc/hosts” file (in Linux) in all the nodes of the cluster to map the hostnames to the IP addresses. For an example, you can map the IP address of the database server. In this example, MySQL is used as the database server, so <MYSQL-DB-SERVER-IP> is the actual IP address of the database server and the host entry is as follows: <IP-of-MYSQL-DB-SERVER> carbondb.mysql-wso2.com

  8. Edit the <EI_HOME>/conf/tomcat/catalina-server.xml file as follows:

    • Add proxyPort="80" to the org.apache.coyote.http11.Http11NioProtocol class with the port defined as 9763:

      Code Block
      languagexml
      <Connector protocol="org.apache.coyote.http11.Http11NioProtocol"
      	port="9763"
      	proxyPort="80"
      	...
      	/>
    • Add proxyPort="443" to the org.apache.coyote.http11.Http11NioProtocol class with the port defined as 9443:

      Code Block
      languagexml
      <Connector protocol="org.apache.coyote.http11.Http11NioProtocol"
      	port="9443"
      	proxyPort="443"
      	...
      	/>
    Expand
    titleClick here for more information on this configuration.

    The Connector protocol tag sets the protocol to handle incoming traffic. The default value is HTTP/1.1, which uses an auto-switching mechanism to select either a blocking Java-based connector or an APR/native connector. If the PATH (Windows) or LD_LIBRARY_PATH (on most UNIX systems) environment variables contain the Tomcat native library, the APR/native connector will be used. If the native library cannot be found, the blocking Java-based connector will be used. Note that the APR/native connector has different settings from the Java connectors for HTTPS.

    The non-blocking Java connector used is an explicit protocol that does not rely on the auto-switching mechanism described above. The following is the value used:
    org.apache.coyote.http11.Http11NioProtocol

    The TCP port number is the value that this Connector will use to create a server socket and await incoming connections. Your operating system will allow only one server application to listen to a particular port number on a particular IP address. If the special value of 0 (zero) is used, Tomcat will select a free port at random to use for this connector. This is typically only useful in embedded and testing applications.

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