Hi, James.
The OutOfMemory error on consumer thread side occurred too.
It seems occurred on where send a respond message by consumer thread.
[Thread-1265](Interrupting...(Exception OutOfMemoryError))
ActiveMQMapMessage.toString() line:661
String.valueOf(Object) line: unusable
StringBuffer.append(Object) line: unusable
ActiveMQSession.send(ActiveMQMessageProducer,....
ActiveMQMessageProducer.send(destination,Message,int,int,long) line:462
ActiveMQMessageProducer.send(Message) line:356
Mewconsumer.run() line:154
.....
HU wrote:
>
> Hi, James.
>
> Our system have to continue to keep the running one month or more long
> term without any memory leaks.
>
> Yesterday's test was interrupted due to the memory leak(OutOfMemory) on
> the consumer thread side after I changed the java heap to -Xmx512K.
>
> Now I began a new test following the prefetch limit.
> I changed the code:
> destinetionQueue = session.createQueue("RequestQueue");
> to
> destinetionQueue = New
> ActiveMQQueue("RequestQueue?consumer.prefetchSize=1");
> .
> The test is running now, but the GC tell me the heap is used slowing up...
>
>
>
> James.Strachan wrote:
>>
>> A consumer will use a readonable amount of RAM due to the prefetch
>> bufffer...
>>
>> http://incubator.apache.org/activemq/what-is-the-prefetch-limit-for.html
>>
>> if you are worried about RAM usage for a consumer, set the prefetch to 1
>>
>> On 9/27/06, HU <[EMAIL PROTECTED]> wrote:
>>>
>>>
>>> OK, I will let it run to dead.
>>>
>>> It has already run about 7Hours and send 7300 messages between Sender
>>> and
>>> consumer.
>>> Now, It is still running..
>>> The used heap by Consumer is up to 2.5M by GC.
>>>
>>>
>>> James.Strachan wrote:
>>> >
>>> > How long do you run your system for? Try send about 10,000 messages
>>> > through the system, then monitor the memory and see if there's a leak.
>>> >
>>> > On 9/27/06, HU <[EMAIL PROTECTED]> wrote:
>>> >>
>>> >> Hi, James.
>>> >>
>>> >> Thanks, I have had the broker run with Mysql DB.
>>> >>
>>> >> Then I run the broker and a sender on a PC and run a consumer on
>>> another
>>> >> PC,
>>> >> Send a message to a queue by the sender thread and receve the
>>> messsage by
>>> >> the consumer thread then reply a message to sender thread by the
>>> >> consumer,
>>> >> repeat the actions.
>>> >> I found the heap was used creep up and did not found the used memory
>>> be
>>> >> released by the consumer thread. I used GC to get tracing for the
>>> test.
>>> >> Following are the codes of my test, could you please help me to fix
>>> the
>>> >> issue.
>>> >>
>>> >> public class Newconsumer extends Thread{
>>> >> private Session session;
>>> >> private Connection connection;
>>> >> private MessageConsumer consumer;
>>> >> private Destination destinetionQueue;
>>> >> public Newconsumer(Connection con) {
>>> >> this.connection = con;
>>> >> try {
>>> >> session = this.connection.createSession(true,
>>> >> Session.AUTO_ACKNOWLEDGE);
>>> >> destinetionQueue = session.createQueue("RequestQueue");
>>> >> consumer = session.createConsumer(destinetionQueue);
>>> >> } catch (JMSException e) { }
>>> >> }
>>> >>
>>> >> public void close() {
>>> >> try {
>>> >> if( consumer != null ) consumer.close();
>>> >> if (session != null) session.close();
>>> >> } catch (JMSException e) { e.printStackTrace(); }
>>> >> }
>>> >>
>>> >> public void run() {
>>> >> while(true){
>>> >> try {
>>> >> Message msg = consumer.receive(10000);
>>> >> if ( msg == null ) continue;
>>> >> Destination destResp = ((MapMessage)
>>> msg).getJMSReplyTo()
>>> >> ;
>>> >> String sCorrelationID = ((MapMessage)
>>> >> msg).getJMSCorrelationID();
>>> >> String sAnkenID = ((MapMessage) msg).getString("ID");
>>> >> Session sessSend = this.connection.createSession(
>>> false,
>>> >> Session.AUTO_ACKNOWLEDGE);
>>> >> MapMessage msgTime = sessSend.createMapMessage();
>>> >> msgTime.setJMSCorrelationID( sCorrelationID);
>>> >> msgTime.setString( "ID",sAnkenID);
>>> >> msgTime.setLong("TIMEOUT",35000 );
>>> >> MessageProducer producer =
>>> >> sessSend.createProducer(destResp);
>>> >> producer.send(msgTime);
>>> >> MapMessage msgRes = session.createMapMessage();
>>> >> msgRes.setJMSCorrelationID( sCorrelationID);
>>> >> msgRes.setString( "ID",sAnkenID);
>>> >> msgRes.setString( "RESULT","SUCCESS");
>>> >> producer.send(msgRes);
>>> >> this.session.commit();
>>> >> producer.close();
>>> >> producer=null;
>>> >> sessSend.close();
>>> >> sessSend=null;
>>> >>
>>> >> } catch (JMSException e) { e.printStackTrace(); }
>>> >> break;
>>> >> }
>>> >> this.close();
>>> >> }
>>> >> }
>>> >>
>>> >> public class ConsumerController {
>>> >> public static Newconsumer consumer;
>>> >>
>>> >> public static void main(String[] args) throws NamingException {
>>> >> ActiveMQConnectionFactory factory;
>>> >> Connection connAnken;
>>> >> factory = new
>>> ActiveMQConnectionFactory("tcp://localhost:61616");
>>> >> try {
>>> >> connAnken = factory.createQueueConnection();
>>> >> connAnken.start();
>>> >> consumer = new Newconsumer(connAnken);
>>> >> consumer.start() ;
>>> >> try {
>>> >> while(true) {
>>> >> consumer.join();
>>> >> consumer =null;
>>> >> consumer = new Newconsumer(connAnken);
>>> >> consumer.start();
>>> >> }
>>> >> } catch (Throwable e) {
>>> >> e.printStackTrace();
>>> >> } finally{
>>> >> connAnken.close() ;
>>> >> connAnken=null;
>>> >> }
>>> >> } catch (Throwable e) { e.printStackTrace(); }
>>> >> }
>>> >> }
>>> >>
>>> >>
>>> >> activemq.xml
>>> >>
>>> ------------------------------------------------------------------------------------------
>>> >> <!-- START SNIPPET: example -->
>>> >> <beans xmlns="http://activemq.org/config/1.0";>
>>> >> <bean
>>> >>
>>> class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>
>>> >> <broker useJmx="true">
>>> >> <destinationPolicy>
>>> >> <policyMap><policyEntries>
>>> >> <policyEntry topic="FOO.>">
>>> >> <dispatchPolicy>
>>> >> <strictOrderDispatchPolicy />
>>> >> </dispatchPolicy>
>>> >> <subscriptionRecoveryPolicy>
>>> >> <lastImageSubscriptionRecoveryPolicy />
>>> >> </subscriptionRecoveryPolicy>
>>> >> </policyEntry>
>>> >> </policyEntries></policyMap>
>>> >> </destinationPolicy>
>>> >> <persistenceAdapter>
>>> >> <journaledJDBC journalLogFiles="5"
>>> >> dataDirectory="../activemq-data-0926" dataSource="#mysql-ds"/>
>>> >> </persistenceAdapter>
>>> >> <transportConnectors>
>>> >> <transportConnector name="default" uri="tcp://localhost:61616"
>>> >> discoveryUri="multicast://default"/>
>>> >> <transportConnector name="stomp"
>>> uri="stomp://localhost:61613"/>
>>> >> </transportConnectors>
>>> >> <networkConnectors>
>>> >> <networkConnector name="default" uri="multicast://default"/>
>>> >> </networkConnectors>
>>> >> </broker>
>>> >> <bean id="mysql-ds" class="org.apache.commons.dbcp.BasicDataSource"
>>> >> destroy-method="close">
>>> >> <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
>>> >> <property name="url"
>>> >> value="jdbc:mysql://localhost/activemq?relaxAutoCommit=true"/>
>>> >> <property name="username" value="activemq"/>
>>> >> <property name="password" value="activemq"/>
>>> >> <property name="poolPreparedStatements" value="true"/>
>>> >> </bean>
>>> >>
>>> >> </beans>
>>> >> <!-- END SNIPPET: example -->
>>> >>
>>> >> eclipse.ini
>>> >>
>>> ------------------------------------------------------------------------------------------
>>> >> -vmargs
>>> >> -Xms128M
>>> >> -Xmx512M
>>> >> -XX:PermSize=64M
>>> >> -XX:MaxPermSize=128M
>>> >>
>>> >> Thanks,
>>> >> Hu
>>> >> --
>>> >> View this message in context:
>>> >>
>>> http://www.nabble.com/Broker-used-up-the-memory-tf2316972.html#a6523894
>>> >> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>> >>
>>> >>
>>> >
>>> >
>>> > --
>>> >
>>> > James
>>> > -------
>>> > http://radio.weblogs.com/0112098/
>>> >
>>> >
>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/Broker-used-up-the-memory-tf2316972.html#a6524501
>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>>
>>
>>
>> --
>>
>> James
>> -------
>> http://radio.weblogs.com/0112098/
>>
>>
>
>
--
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