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From James Green <>
Subject Re: ActiveMQ - sending async persistent messages, what is the maximum that can be lost?
Date Tue, 14 Sep 2010 06:29:01 GMT
AFAIK ActiveMQ writes the persistent message to disk prior to
acknowledging receipt to the producer. That's relatively simple.

What do you mean by "system failure"? You mean the s/w dies or
something more serious like filesystem corruption?

Not entirely certain what your question really is.

On 13 September 2010 18:11, nervousbadger <> wrote:
> Hi,
> We are currently in the process of migrating to ActiveMQ from our previous
> JMS provider. We hit a big performance issue with message production speeds
> on a blade server (we didn't see this during initial testing on a non-blade
> server, we suspect it is due to the disk caching in use) - forcing async
> send gets round the performance issue, but we are trying to work out if
> there is any way of calculating the maximum number of messages that could be
> lost on system failure.
> We know the size of the messages, is there any way of getting from this to a
> maximum number of messages that could be lost?
> We can't move to transacted sessions just yet, as this will require code
> changes across many components of our system.
> Thanks,
> Pete.
> --
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