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From Scouser ...@gmav.demon.co.uk>
Subject Re: Usage Manager Store is Full - Root Cause?
Date Tue, 24 Feb 2009 19:30:39 GMT

Hiya

I will try and get a minimal test case together to show the problem.  I
still think it is more likely my poor understanding rather than a bug but
you never know!

It will be a few days so I will post back when it is ready.

Thanks for the help

Richard


Dejan Bosanac wrote:
> 
> Sounds like a bug. Which version are you using? Can you create a
> reproducible test case?
> 
> Cheers
> --
> Dejan Bosanac
> 
> Open Source Integration - http://fusesource.com/
> ActiveMQ in Action - http://www.manning.com/snyder/
> Blog - http://www.nighttale.net
> 
> 
> On Mon, Feb 23, 2009 at 11:55 PM, Scouser <mq@gmav.demon.co.uk> wrote:
> 
>>
>> Hiya
>>
>> Thanks for that - clarified the issue nicely, but I have now found
>> something
>> odd which may be related.
>>
>> If I use flow control with fairly small values for memoryLimit e.g.
>>
>> <policyEntry queue="xyz.Queue" useCache="true" producerFlowControl="true"
>> memoryLimit="3mb">
>>
>> Then if I generate a lot of messages I eventually get an exception as I
>> would expect:
>>
>> javax.jms.ResourceAllocationException: SystemUsage memory limit reached
>>
>> At this point, producers can only write to the queue as space is freed up
>> by
>> by consumers so this works as I would expect.  However, if I use a larger
>> memoryLimit value and get an exception when I run out of storage:
>>
>> javax.jms.ResourceAllocationException: Usage Manager Store is Full
>>
>> then the producers seem to hang even if the pending messages are
>> consumed.
>> That is, they always generate a 'Usage Manager Store is Full' exception
>> even
>> if all the message have been consumed.  I have also noticed that the
>> 'Store
>> percent used' value in the Admin application never drops once it has got
>> to
>> 100%
>>
>> Any thoughts?
>>
>> Cheers
>>
>> Richard
>>
>>
>>
>>
>>
>> Dejan Bosanac wrote:
>> >
>> > Hi,
>> >
>> > you have set "store usage" in your activemq.xml and set it to fail if
>> > there
>> > is no more space. I just put up a section describing this behavior
>> >
>> >
>> http://cwiki.apache.org/confluence/display/ACTIVEMQ/Producer+Flow+Control#ProducerFlowControl-Systemusage
>> >
>> > Cheers
>> > --
>> > Dejan Bosanac
>> >
>> > Open Source Integration - http://fusesource.com/
>> > ActiveMQ in Action - http://www.manning.com/snyder/
>> > Blog - http://www.nighttale.net
>> >
>> >
>> > On Sun, Feb 22, 2009 at 3:52 PM, Scouser <mq@gmav.demon.co.uk> wrote:
>> >
>> >>
>> >> I'm fairly new to activeMQ and have become stuck on an error.  I don't
>> >> seem
>> >> to be able to find much out about the root cause.  I have a small
>> example
>> >> which send messages to a couple of queues and reads the messages out.
>> >> I'm
>> >> using Spring's JMS template etc to do most of the hard work. 
>> Eventually
>> >> I
>> >> get the following crash:
>> >> ...
>> >> SEVERE: Usage Manager Store is Full; nested exception is
>> >> javax.jms.ResourceAllocationException: Usage Manager Store is Full
>> >> org.springframework.jms.ResourceAllocationException: Usage Manager
>> Store
>> >> is
>> >> Full; nested exception is javax.jms.ResourceAllocationException: Usage
>> >> Manager Store is Full
>> >>        at
>> >>
>> >>
>> org.springframework.jms.support.JmsUtils.convertJmsAccessException(JmsUtils.java:298)
>> >>        at
>> >>
>> >>
>> org.springframework.jms.support.JmsAccessor.convertJmsAccessException(JmsAccessor.java:168)
>> >>        at
>> >> org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:474)
>> >>
>> >> ...
>> >> Caused by: javax.jms.ResourceAllocationException: Usage Manager Store
>> is
>> >> Full
>> >>        at
>> >> org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:430)
>> >>        at org.apache.activemq.broker.region.Queue.send(Queue.java:417)
>> >>        at
>> >>
>> >>
>> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:354)
>> >> ...
>> >>
>> >> So, what is the 'Usage Manager' ?, any ideas what I may have done
>> wrong?,
>> >> any and all help appreciated!
>> >>
>> >>
>> >> --
>> >> View this message in context:
>> >>
>> http://www.nabble.com/Usage-Manager-Store-is-Full---Root-Cause--tp22147570p22147570.html
>> >> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>> >>
>> >>
>> >
>> >
>> > -----
>> > Dejan Bosanac
>> >
>> > Open Source Integration - http://fusesource.com/
>> > ActiveMQ in Action - http://www.manning.com/snyder/
>> > Blog - http://www.nighttale.net
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Usage-Manager-Store-is-Full---Root-Cause--tp22147570p22172029.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>>
> 
> 
> -----
> Dejan Bosanac
> 
> Open Source Integration - http://fusesource.com/
> ActiveMQ in Action - http://www.manning.com/snyder/
> Blog - http://www.nighttale.net
> 

-- 
View this message in context: http://www.nabble.com/Usage-Manager-Store-is-Full---Root-Cause--tp22147570p22188811.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.


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