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From Rob Davies <rajdav...@gmail.com>
Subject Re: AMQ DataStore exception leading to Java.IO.EOFException
Date Wed, 17 Mar 2010 08:22:39 GMT
Yes - though make sure its KahaDB - there's an older store called Kaha - we aren't very good
at thinking up new names!
On 17 Mar 2010, at 01:15, Sebastian Rodriguez wrote:

> Do you guys think switching to Kaha Data Store could solve this issue ( <=>
> this issue is AmqDatastore specific?)
> 
> On 16 March 2010 11:00, Sebastian Rodriguez <srodrigu85@gmail.com> wrote:
> 
>> Dear all,
>> I come back to you to look for pointers on possible causes that can lead me
>> to receive this kind of exception.
>> I'm using Apache.ActiveMQ 5.3.1, with Apache.NMS.ActiveMQ 1.2.0.
>> I'm using ActiveMQ for communicating in a SOAP application: the servers are
>> in Network of Brokers configuration, the clients have an embedded ActiveMQ.
>> 
>> Some of the members of the network of brokers are not always available, and
>> when reconnecting I get a lot of  these kind of exceptions one after the
>> other:
>> 
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | WARN  AMQMessageStore
>>   - Message could not be added to long term store: Index: 1, Size: 1
>> INFO   | jvm 1    | 2010/03/15 19:12:41 |
>> java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> java.util.ArrayList.RangeCheck(Unknown Source)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> java.util.ArrayList.get(Unknown Source)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.index.hash.HashPage.getHashEntry(HashPage.java:181)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.index.hash.HashPageInfo.getHashEntry(HashPageInfo.java:78)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.index.hash.HashBin.getHashEntry(HashBin.java:247)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.index.hash.HashBin.remove(HashBin.java:164)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.index.hash.HashIndex.remove(HashIndex.java:303)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.container.MapContainerImpl.remove(MapContainerImpl.java:337)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.kaha.impl.container.MapContainerImpl.place(MapContainerImpl.java:414)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.store.kahadaptor.TopicSubContainer.add(TopicSubContainer.java:62)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.store.kahadaptor.KahaTopicReferenceStore.addMessageReference(KahaTopicReferenceStore.java:104)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.store.amq.AMQMessageStore$4.execute(AMQMessageStore.java:383)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.util.TransactionTemplate.run(TransactionTemplate.java:44)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.store.amq.AMQMessageStore.doAsyncWrite(AMQMessageStore.java:373)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.store.amq.AMQMessageStore.asyncWrite(AMQMessageStore.java:339)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.store.amq.AMQMessageStore$1.iterate(AMQMessageStore.java:90)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
>> INFO   | jvm 1    | 2010/03/15 19:12:41 | at
>> org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
>> 
>> Until at some point I get this message:
>> 
>> 2010-03-16 09:19:44,608 [216.10.21:31616] WARN  DemandForwardingBridge
>>    - Network connection between vm://client1 and tcp://broker1:31616
>> shutdown due to a remote error: java.io.EOFException
>> 2010-03-16 09:19:44,623 [216.10.21:31616] INFO  DemandForwardingBridge
>>    - client1 bridge to client2 stopped
>> 2010-03-16 09:19:44,623 [r$Worker@c0bc3a] INFO  DiscoveryNetworkConnector
>>     - Establishing network connection from vm://client1 to
>> tcp://broker1:31616
>> 2010-03-16 09:19:45,826 [r$Worker@c0bc3a] WARN  DiscoveryNetworkConnector
>>     - Could not start network bridge between: vm://client1 and:
>> tcp://broker1:31616 due to: java.net.ConnectException: Connection refused:
>> connect
>> 
>> Then it tries to reconnect and reconnect
>> At that point the Service is "hang", meaning the service seems to be
>> running, yet when looking for connections, they are all gone. My client will
>> not receive any more messages from the server.
>> 
>> After rebooting the service, it will take incredibly long to recover. This
>> is caused I guess also because right now I'm using the AMQDataStore (I
>> believe now it's recommended to switch to the KahaStore).
>> 
>> What can cause this message problem and is it the reason that after a lot
>> of these exceptions i receive the EOF Exception?
>> 
>> Thank you very much for your help,
>> --
>> Sebastien Rodriguez
>> 
> 
> 
> 
> -- 
> Sebastien Rodriguez


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