[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - JBoss Upgraded. Mysql failure

[Logarith]

Hi

I have the following problem:
I upgraded from 4.0.4 to 4.0.5 used the jems installer files, cause I got
some error messages with the ...aop.xml. This error is not coming anymore, but luckily a new one comes, which did not appear on 4.0.4
I use mysql 5.0.27 for persistence and i putted the mysql-ds in the deploy directory and the connector to lib.
here is the short version of the error:

INFO  [WrapperDataSourceService] Bound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=DefaultDS' to JNDI name 'java:DefaultDS'
16:30:19,125 WARN  [JBossManagedConnectionPool] Throwable while attempting to get a new connection: null
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: 

** BEGIN NESTED EXCEPTION ** 

java.net.UnknownHostException
MESSAGE: mysql-hostname: mysql-hostname

STACKTRACE:

java.net.UnknownHostException: mysql-hostname: mysql-hostname
	at java.net.InetAddress.getAllByName0(InetAddress.java:1128)
	at java.net.InetAddress.getAllByName0(InetAddress.java:1098)
	at java.net.InetAddress.getAllByName(InetAddress.java:1061)
	at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:137)
	at com.mysql.jdbc.MysqlIO.(MysqlIO.java:284)
	at com.mysql.jdbc.Connection.createNewIO(Connection.java:2569)
	at com.mysql.jdbc.Connection.(Connection.java:1485)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
........ and so on over many,many lines

Thx 
Logarith

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