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From "James Strachan" <>
Subject Re: ActiveMQ eats memory
Date Fri, 11 Aug 2006 07:21:09 GMT
I wonder do you get the same effect if you disable JMX?

Are you using queues - if so are they empty? If you have slow
consumers or non-empty queues there is nowhere else to put them other
than memory if you disable persistence.

On 8/11/06, SimonInOz <> wrote:
> My ActiveMQ 4.01 installaton eats memory.
> I have an ActiveMQ setup running on a single box. I just use it for local
> messages (publish/subscribe). Persistance is turned off (at least I think it
> is). I have no associated database. The installation is a straight out of
> the box. (Windows 2003, Java 1.5.0_07b03).
> I start up ActiveMQ using the command options
> persistent=false
> useJmx=true
> in the command line. It seesm to run wonderfully.
> OK. so what I ought to have is a simple mesage broker. No problem. It should
> stay running for weeks, months, years.
> But according to Windows it gradually uses up memory. It starts at maybe
> 30Mb, and gradually increases - it's currently at about 190Mb (it's been
> running for a week with message numbers in the thousands, not hundreds of
> thousands).
> There's an option in the xml config to limit memory use. But why should
> memory get consumed? What happens to it?  If I limit the memory will it
> start to swap (I really, really don't want that).
> thanks for any sage-like advice,
> Simon (in Sydney where it is winter)
> --
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