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From yaussy <yau...@cboe.com>
Subject Re: Kaha persistence issue w/5.1 (upto 4/8 SNAPSHOT)
Date Thu, 17 Apr 2008 17:51:03 GMT

Rob,

This looks to have done the trick.  I've tested with our application, which
was hitting the problem every time, and it is fine.

Thanks for your attentiveness to this issue!

Kevin


rajdavies wrote:
> 
> Hopefully!
> On 16 Apr 2008, at 18:39, yaussy wrote:
> 
>>
>> Rob,
>>
>> So, I would find this under the 5.2 SNAPSHOT tomorrow morning (USA  
>> central
>> standard time)?
>>
>> Kevin
>>
>>
>> rajdavies wrote:
>>>
>>> yep - being able to reproduce - this is now fixed in trunk - but too
>>> late for the 5.1 release
>>>
>>> thanks,
>>>
>>> Rob
>>>
>>> On 16 Apr 2008, at 13:54, yaussy wrote:
>>>
>>>>
>>>> Rob,
>>>>
>>>> While I don't yet have a solid / consistent test case for you, our
>>>> application, using a particular test scenario the app guys have, can
>>>> reproduce the problem every time.  If you have anything you want me
>>>> to try
>>>> out, let me know.
>>>>
>>>> I'm still working with my test code to get something more
>>>> reproduceable,
>>>> while adding some debug code to IndexManager.
>>>>
>>>> Kevin
>>>>
>>>>
>>>> yaussy wrote:
>>>>>
>>>>> Still working on a consistent test case.  But, I've run into
>>>>> something
>>>>> along the way, and I'm not sure if it's related to the original
>>>>> exception
>>>>> I've logged here.  I was able to get the problem to happen when I
>>>>> expanded
>>>>> my test case to a publisher of 6 topics, at 100+/sec/topic, and a
>>>>> consumer
>>>>> that consumes all those topics.  I have this configured to use a
>>>>> connection for each topic, for both the publisher and the
>>>>> consumer.  I've
>>>>> only been able to get the original exception to happen once, but
>>>>> I've more
>>>>> consistently hit a problem wherein no exception is thrown, but the
>>>>> broker
>>>>> just stops forwarding events for one of the topics.  After this
>>>>> point, the
>>>>> publisher continues, but all events for this one topic are queued
>>>>> to disk.
>>>>>
>>>>> I'm trying to see if I can reduce this test case down right now.
>>>>> But,
>>>>> maybe you could give this a go with the supplied consumer /
>>>>> supplier test
>>>>> code?
>>>>>
>>>>> Kevin
>>>>>
>>>>>
>>>>> rajdavies wrote:
>>>>>>
>>>>>> ok - thx for checking! - let me know when you have a test case
>>>>>>
>>>>>> On 15 Apr 2008, at 15:06, yaussy wrote:
>>>>>>
>>>>>>>
>>>>>>> Bad news - problem still happens with "5.2" snapshot dated  
>>>>>>> 4/13.  I
>>>>>>> did not
>>>>>>> see anymore 5.1 snapshots, but saw the 5.2 directory.  The  
>>>>>>> archive
>>>>>>> still has
>>>>>>> 5.1 for the path names, so I figured this is what I should take.
>>>>>>>
>>>>>>> I'm still working with it and am trying to see if I can get any
>>>>>>> more
>>>>>>> debug
>>>>>>> information.  I have not been able to reproduce it with a test
>>>>>>> program yet.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> yaussy wrote:
>>>>>>>>
>>>>>>>> Rob,
>>>>>>>>
>>>>>>>> This is good news - I will try using last nights snapshot.
>>>>>>>>
>>>>>>>> I started out using AMQMessageStore, but I've never had good
>>>>>>>> performance
>>>>>>>> luck with AMQs Journal - it always seems to have this frequent,
>>>>>>>> high CPU
>>>>>>>> cost as it checkpoints.  Our Durable rate requirements are
 
>>>>>>>> fairly
>>>>>>>> significant, such as a few hundred events per second to a
>>>>>>>> handful of
>>>>>>>> consumers, on one of our clusters.  It has not performed
well,
>>>>>>>> whereas
>>>>>>>> Kaha by itself is excellent.
>>>>>>>>
>>>>>>>> Kevin
>>>>>>>>
>>>>>>>>
>>>>>>>> rajdavies wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> 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
>>>>>>>>>>
>>>>>>>>>> -- 
>>>>>>>>>> View this message in context:
>>>>>>>>>> http://www.nabble.com/Kaha-persistence-issue-w-5.1-%28upto-4-8-SNAPSHOT%29-tp16677512s2354p16677512.html
>>>>>>>>>> Sent from the ActiveMQ - User mailing list archive
at
>>>>>>>>>> Nabble.com.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> 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/
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> -- 
>>>>>>> View this message in context:
>>>>>>> http://www.nabble.com/Kaha-persistence-issue-w-5.1-%28upto-4-8-SNAPSHOT%29-tp16677512s2354p16700798.html
>>>>>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>> -- 
>>>> View this message in context:
>>>> http://www.nabble.com/Kaha-persistence-issue-w-5.1-%28upto-4-8-SNAPSHOT%29-tp16677512s2354p16721669.html
>>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>>
>>>
>>>
>>>
>>
>> -- 
>> View this message in context:
>> http://www.nabble.com/Kaha-persistence-issue-w-5.1-%28upto-4-8-SNAPSHOT%29-tp16677512s2354p16725769.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
> 
> 
> 

-- 
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