[dream_walker]

Hi!

I have created a new file called activemq.xml and pasted the following xml in it:

<?xml version=”1.0″ encoding=”UTF-8″?>
<!DOCTYPE beans PUBLIC “-//ACTIVEMQ//DTD//EN” “http://activemq.org/dtd/activemq.dtd”&gt;
<beans>

<!– ==================================================================== –>
<!– ActiveMQ Broker Configuration –>
<!– ==================================================================== –>
<broker>
<connector>
<tcpServerTransport uri=”tcp://localhost:61616″ backlog=”1000″ useAsyncSend=”true” maxOutstandingMessages=”50″/>
</connector>

<!– to enable Stomp support uncomment this
<connector>
<serverTransport uri=”stomp://localhost:61626″/>
</connector>
–>

<persistence>
<cachePersistence>
<journalPersistence directory=”../var/journal”>
<jdbcPersistence dataSourceRef=”derby-ds”/>

<!– Choose one of the following three configurationss to work with mysql-ds–>
<!–
<jdbcPersistence dataSourceRef=”mysql-ds”
adapterClass=”org.activemq.store.jdbc.adapter.BytesJDBCAdaptor”/>
<jdbcPersistence dataSourceRef=”mysql-ds”
adapterClass=”org.activemq.store.jdbc.adapter.BlobJDBCAdaptor”/>
<jdbcPersistence dataSourceRef=”mysql-ds”
adapterClass=”org.activemq.store.jdbc.adapter.StreamJDBCAdaptor”/>
–>
</journalPersistence>
</cachePersistence>
</persistence>
</broker>

<!– ==================================================================== –>
<!– JDBC DataSource Configurations –>
<!– ==================================================================== –>

<!– The Derby Datasource that will be used by the Broker –>
<bean id=”derby-ds” class=”org.apache.commons.dbcp.BasicDataSource” destroy-method=”close”>
<property name=”driverClassName”>
<value>org.apache.derby.jdbc.EmbeddedDriver</value>
</property>
<property name=”url”>
<!– Use a URL like ‘jdbc:hsqldb:hsql://localhost:9001’ if you want to connect to a remote hsqldb –>
<value>jdbc:derby:derbydb;create=true</value>
</property>
<property name=”username”>
<value></value>
</property>
<property name=”password”>
<value></value>
</property>
<property name=”poolPreparedStatements”>
<value>true</value>
</property>
</bean>

<!– The MYSQL Datasource that will be used by the Broker –>
<bean id=”mysql-ds”
class=”org.apache.commons.dbcp.BasicDataSource”
destroy-method=”close”>
<property name=”driverClassName”>
<value>com.mysql.jdbc.Driver</value>
</property>
<property name=”url”>
<value>jdbc:mysql://localhost/activemq</value>
</property>
<property name=”username”>
<value>myname</value>
</property>
<property name=”password”>
<value>mypassword</value>
</property>
<property name=”poolPreparedStatements”>
<value>true</value>
</property>
</bean>
</beans>

Saved… and since then the system works teribly slow. Cannot close the editor of this file. Checked the logs and:

!ENTRY org.eclipse.core.runtime 4 2 2005-12-12 21:40:13.453
!MESSAGE An internal error occurred during: “loading http://activemq.org/dtd/activemq.dtd&#8221;.
!STACK 0
java.lang.OutOfMemoryError: PermGen space

Configuration:
Eclipse 3.1
MyEclipse 4.0.3
Windows XP SP2
Java 1.4 (or 5, not shure which is used for starting Eclipse).

Best regards,
Alex

[Riyad Kalla]

Alex,
Please edit your eclipse.ini file or the shortcut you use to start MyEclipse and use these command line arguments:
-vmargs -Xms128M -Xmx512M -XX:PermSize=64M -XX:MaxPermSize=128M

The problem is due to the size of Eclipse + MyEclipse it is not uncommon to run into VM memory limits. The new parameters should speed things upf or you.

[Author]

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