On 14 Apr 2008, at 14:07, yaussy wrote:


I have not been able to reproduce this problem outside of our application,
but I'm still trying.

Anyway, I'm using regular Kaha persistence (not AMQMessageStore), and during a Durable Topic test, I'm eventually getting the following exception in the AMQBroker, after which the broker stops forwarding events to the consumer.

Anyone seen this?


< org .apache.activemq.broker.region.cursors.AbstractStoreCursor.fillBatch> <Thread[ActiveMQ Transport: tcp:///127.0.0.1:43595,4,main]> Failed to fill
batch
Stack Trace follows:
java.lang.RuntimeException: Failed to get next index from
IndexManager:(index-topic-subs) for offset=7681977, key=(2, 20080006, 47),
value=(2, 20080058, 165), previousItem=7681212, nextItem=7682895
       at
org .apache .activemq .kaha .impl .index.DiskIndexLinkedList.getNextEntry(DiskIndexLinkedList.java:267)
       at
org .apache .activemq .kaha.impl.container.MapContainerImpl.getNext(MapContainerImpl.java: 449)
       at
org .apache .activemq .store .kahadaptor.TopicSubContainer.getNextEntry(TopicSubContainer.java:95)
       at
org .apache .activemq .store .kahadaptor .KahaTopicMessageStore .recoverNextMessages(KahaTopicMessageStore.java:165)
       at
org .apache .activemq .store .ProxyTopicMessageStore .recoverNextMessages(ProxyTopicMessageStore.java:97)
       at
org .apache .activemq .broker .region .cursors.TopicStorePrefetch.doFillBatch(TopicStorePrefetch.java:107)
       at
org .apache .activemq .broker .region .cursors.AbstractStoreCursor.fillBatch(AbstractStoreCursor.java:188)
       at
org .apache .activemq .broker .region.cursors.AbstractStoreCursor.hasNext(AbstractStoreCursor.java: 104)
       at
org .apache .activemq .broker .region .cursors .StoreDurableSubscriberCursor .hasNext(StoreDurableSubscriberCursor.java:210
)
       at
org .apache .activemq .broker .region .PrefetchSubscription.dispatchPending(PrefetchSubscription.java:479)
       at
org .apache .activemq .broker .region.PrefetchSubscription.acknowledge(PrefetchSubscription.java: 357)
       at
org .apache .activemq .broker.region.AbstractRegion.acknowledge(AbstractRegion.java:349)
       at
org .apache .activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java: 474)
       at
org .apache .activemq .broker.TransactionBroker.acknowledge(TransactionBroker.java:194)
       at
org .apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
       at
org .apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:73)
       at
org .apache .activemq .broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:84)
       at
org .apache .activemq .broker .TransportConnection.processMessageAck(TransportConnection.java:444) at org.apache.activemq.command.MessageAck.visit(MessageAck.java:196)
       at
org .apache .activemq .broker.TransportConnection.service(TransportConnection.java:293)
       at
org.apache.activemq.broker.TransportConnection $1.onCommand(TransportConnection.java:181)
       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:619)
Caused by: java.io.EOFException
at java.io.RandomAccessFile.readFully(RandomAccessFile.java: 383) at java.io.RandomAccessFile.readFully(RandomAccessFile.java: 361)
       at
org .apache .activemq .kaha.impl.index.StoreIndexReader.readItem(StoreIndexReader.java:46)
       at
org .apache .activemq.kaha.impl.index.IndexManager.getIndex(IndexManager.java:66)
       at
org .apache .activemq .kaha .impl .index.DiskIndexLinkedList.getNextEntry(DiskIndexLinkedList.java:265)
       ... 27 more

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There was a bug fixed in this area last Friday - would be interested if this is still a problem for you with a later version?
If it is - Ill digg a little deeper.

btw - why are you using Kaha instead of AMQStore ?




cheers,

Rob

http://open.iona.com/ -Enterprise Open Integration
http://rajdavies.blogspot.com/



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