Hi everyone, I am hoping someone might give me an idea how to deal with this issue:
I am running ActiveMQ 5.1.0 on a Windows XP desktop, java version 1.5.0, default setting from the ActiveMQ download package. I change the example source ProducerTool.java from creating one topic and send 2000 message to creating 2000 topics and send 1 message for each topic. And then I got the OOME. basicly in the producerTool, I have one connection, one session. 2000 topics..... cannot ActiveMQ support that? How to increase the capability of ActiveMQ to create as many topics as I want, like 20,000? Thanks in advance!! java.lang.OutOfMemoryError: Java heap space at org.apache.activemq.util.DataByteArrayOutputStream.<init>(DataByteArrayOutputStream.java:45) at org.apache.activemq.kaha.impl.index.hash.HashIndex.load(HashIndex.java:198) at org.apache.activemq.kaha.impl.container.MapContainerImpl.load(MapContainerImpl.java:103) at org.apache.activemq.store.kahadaptor.KahaPersistenceAdapter.getSubsMapContainer(KahaPersistenceAdapter.java:222) at org.apache.activemq.store.kahadaptor.KahaReferenceStoreAdapter.createTopicReferenceStore(KahaReferenceStoreAdapter.java:169) at org.apache.activemq.store.amq.AMQPersistenceAdapter.createTopicMessageStore(AMQPersistenceAdapter.java:454) at org.apache.activemq.broker.region.DestinationFactoryImpl.createDestination(DestinationFactoryImpl.java:94) at org.apache.activemq.broker.region.AbstractRegion.createDestination(AbstractRegion.java:425) at org.apache.activemq.broker.jmx.ManagedTopicRegion.createDestination(ManagedTopicRegion.java:56) at org.apache.activemq.broker.region.AbstractRegion.addDestination(AbstractRegion.java:120) at org.apache.activemq.broker.region.RegionBroker.addDestination(RegionBroker.java:266) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:141) at org.apache.activemq.advisory.AdvisoryBroker.addDestination(AdvisoryBroker.java:147) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:141) at org.apache.activemq.broker.MutableBrokerFilter.addDestination(MutableBrokerFilter.java:148) at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:425) at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:224) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:125) at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:95) at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:132) at org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:437) at org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:624) at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:292) at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:180) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:68) at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:143) at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:206) at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:84) at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:196) at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:183) at java.lang.Thread.run(Thread.java:595) -- View this message in context: http://www.nabble.com/how-many-topics-can-I-create-in-a-broker-before-getting-OutOfMemoryError%3A-Java-heap-space-tp17905477p17905477.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.