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From Rob Davies <rajdav...@gmail.com>
Subject Re: StoreUsage, TempUsage and MemoryUsage
Date Sun, 03 Feb 2008 23:26:21 GMT


On Feb 3, 2008, at 8:56 PM, Tamir wrote:

>
> I'm sorry to repeat my question, but I still haven't found a way to  
> limit the
> size of both journal files and data files. I'm willing (actually, I  
> want) to
> discard old message, but I have to guarantee that the disk usage  
> would be
> bounded by something. Is that doable ?
>
> rajdavies wrote:
>>
>>
>> On Jan 31, 2008, at 7:26 PM, dalin wrote:
>>
>>>
>>>
>>> rajdavies wrote:
>>>>
>>>> Store usage controls the maximum size of the AMQMessage Store
>>>> TempUsage is the maximum size of the store used for non-persistent
>>>> messages that may optionally overflow from memory awaiting dispatch
>>>> MemoryUsage is the maximum amount of memory the broker will use
>>>>
>>>> cheers,
>>>>
>>>> Rob
>>>>
>>>> http://open.iona.com/ -Enterprise Open Integration
>>>> http://rajdavies.blogspot.com/
>>>>
>>>
>>> Are the settings enforced? For example, if I am running an embedded
>>> broker
>>> inside another java app and have set the max jvm heap size to be
>>> 512MB, but
>>> have set MemoryUsage to be 100MB. Will the broker only use at most
>>> 100MB of
>>> memory, or can it exceed that amount?
>>> -- 
>>> View this message in context:
>>> http://www.nabble.com/StoreUsage%2C-TempUsage-and-MemoryUsage-tp15206526s2354p15212835.html
>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>
>> The broker makes a guess at how much space messages will use in the
>> JVM - based on the size of the message after its been serialized. If
>> you are using the vm://transport - messages aren't by default
>> serialized so it used the default - 8k as the message size. This  
>> means
>> that the broker should use 100mb or less of the available JVM space.
>>
>>
>>
>> cheers,
>>
>> Rob
>>
>> http://open.iona.com/ -Enterprise Open Integration
>> http://rajdavies.blogspot.com/
>>
>>
>>
>>
>>
>
> -- 
> View this message in context: http://www.nabble.com/StoreUsage%2C-TempUsage-and-MemoryUsage-tp15206526s2354p15258136.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
Those settings I mentioned should work - do they not?
What version are you using ? - and if its the latest 5.1 snapshot -  
you'd best raise a jira and a testcase for it


cheers,

Rob

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




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