I am trying to add secondary db Mysql 5.5 but it is giving me error. can you ver

I am trying to add secondary db Mysql 5.5 but it is giving me error. can you verify is this format is correct.

<xa-datasource
jndi-name="jdbc/MySqlDataSource"
pool-name="MySqlDS"
enabled="true"
use-java-context="false">
<!--<xa-datasource-property name="URL">jdbc:mysql://IPofserver:3306/appian_mysql_db?useOldAliasMetadataBehavior=true</xa-datasource-property>-->
<xa-datasource-property name="serverName">Server Ip</xa-datasource-property>
<xa-datasource-property name="portNumber">3306</xa-datasource-property>
<xa-datasource-property name="databaseName">appian_mysql_db</xa-datasource-property>
<xa-datasource-property name="useUnicode">true</xa-datasource-property>
<xa-datasource-property name="characterEncoding">UTF-8</xa-datasource-property>
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<user-name>User id</user-name> ...

OriginalPostID-62190

OriginalPostID-62190