我们正在JBoss 7.1.1应用服务器中为后端集群MySQL服务器(Master-Master配置)配置XA数据源。以下是数据源配置:
<xa-datasource jndi-name="java:/datasoucrenew" pool-name="datasoucrenew" enabled="true" use-ccm="false">
<xa-datasource-property name="URL">
jdbc:mysql://10.2.0.35:3306,10.2.0.36:3306/test_prod?autoReconnect=true
</xa-datasource-property>
<xa-datasource-property name="password">
password
</xa-datasource-property>
<xa-datasource-property name="user">
user
</xa-datasource-property>
<xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
<driver>mysql-connector-java-5.1.12-bin.jar</driver>
<xa-pool>
<min-pool-size>0</min-pool-size>
<max-pool-size>100</max-pool-size>
<use-strict-min>true</use-strict-min>
<is-same-rm-override>false</is-same-rm-override>
<interleaving>false</interleaving>
<pad-xid>false</pad-xid>
<wrap-xa-resource>false</wrap-xa-resource>
</xa-pool>
<security>
<user-name>user</user-name>
<password>password</password>
</security>
<validation>
<validate-on-match>false</validate-on-match>
<background-validation>false</background-validation>
<exception-sorter class-name="org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter"/>
</validation>
<statement>
<share-prepared-statements>false</share-prepared-statements>
</statement>
</xa-datasource>
我们面临以下问题:
在开始时我认为这是一个驱动程序问题。但是使用相同的驱动程序,当我运行独立应用程序时,它没有任何问题。
12:06:08,782 ERROR [stderr] (MSC service thread 1-1) com.mysql.jdbc.jdbc2.optional.MysqlXAException: **Connection is read-only. Queries leading to data modificati
on are not allowed.**
12:06:08,784 ERROR [stderr] (MSC service thread 1-1) at com.mysql.jdbc.jdbc2.optional.MysqlXAConnection.mapXAExceptionFromSQLException(MysqlXAConnection.java
:607)
12:06:08,788 ERROR [stderr] (MSC service thread 1-1) at com.mysql.jdbc.jdbc2.optional.MysqlXAConnection.dispatchCommand(MysqlXAConnection.java:586)
12:06:08,790 ERROR [stderr] (MSC service thread 1-1) at com.mysql.jdbc.jdbc2.optional.MysqlXAConnection.start(MysqlXAConnection.java:526)
12:06:08,793 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.adapters.jdbc.xa.XAManagedConnection.start(XAManagedConnection.java:259)
12:06:08,796 ERROR [stderr] (MSC service thread 1-1) at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.j
ava:636)
12:06:08,799 ERROR [stderr] (MSC service thread 1-1) at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.j
ava:397)
12:06:08,802 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.core.connectionmanager.listener.TxConnectionListener$TransactionSynchronization.enlist(
TxConnectionListener.java:587)
12:06:08,806 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.core.connectionmanager.listener.TxConnectionListener.enlist(TxConnectionListener.java:2
64)
12:06:08,809 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.managedConnectionReconnected(TxConnec
tionManagerImpl.java:467)
12:06:08,813 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.reconnectManagedConnection(AbstractCon
nectionManager.java:599)
12:06:08,817 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.allocateConnection(AbstractConnectionM
anager.java:467)
12:06:08,819 ERROR [stderr] (MSC service thread 1-1) at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:129)
12:06:08,821 ERROR [stderr] (MSC service thread 1-1) at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceCon
注意: 我们正在使用mysql-connector-java-5.1.12-bin.jar mysql驱动程序作为最新版本21 OR 24 OR 27给出以下错误:
java.lang.ClassCastException: $Proxy0 cannot be cast to com.mysql.jdbc.ConnectionImpl
Completed
at com.mysql.jdbc.jdbc2.optional.MysqlXADataSource.wrapConnection(MysqlXADataSource.java:76)
at com.mysql.jdbc.jdbc2.optional.MysqlXADataSource.getXAConnection(MysqlXADataSource.java:52)
非常感谢您解决此问题的答案。
问候,
Manjunath
答案 0 :(得分:0)
您可以尝试用jdbc:mysql:
替换jdbc:mysql:loadbalance:
。它应该使第二个服务器能够以读/写方式而不是只读方式进行访问。
BR,伊利亚