wildfly 10.1 mysql replication second database is read-only exception
burcu-kalkan-47367366 Nov 19, 2018 2:32 AMI started using Wildfly 10.1 and use mysql as a database. I have two databases, DB1 and DB2. Wildfly will connect to DB2 when D1 disconnected. I've done it so far. But when I connect to DB2, I get a "Connection is read-only" error. I looked at the topic here [https://stackoverflow.com/questions/9409111/database-fail-over-in-jboss-data-sources][1] but
> <connection-property name = "readOnly"> false </ connection-property>
not resolve. I'm looking for a solution to that. I want master/master not master/slave. In my mysql configuration in standalone.xml:
<datasources>
<datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true">
<connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
<driver>h2</driver>
<security>
<user-name>sa</user-name>
<password>sa</password>
</security>
</datasource>
<datasource jta="true" jndi-name="java:jboss/datasources/RailbaseLabDS" pool-name="RailbaseLabDS" enabled="true" use-java-context="true" use-ccm="true">
<connection-url>jdbc:mysql://IP1:3306,IP2:3306/DBN?autoreconnect=true</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<driver>mysql</driver>
<url-delimiter>|</url-delimiter>
<security>
<user-name>DBN</user-name>
<password>DBN</password>
</security>
<validation>
<valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/>
<check-valid-connection-sql>select 1</check-valid-connection-sql>
<background-validation>true</background-validation>
<background-validation-millis>5000</background-validation-millis>
</validation>
</datasource>
<drivers>
<driver name="h2" module="com.h2database.h2">
<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
</driver>
<driver name="mysql" module="com.mysql">
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
</driver>
</drivers>
</datasources>
[1]: https://stackoverflow.com/questions/9409111/database-fail-over-in-jboss-data-sources