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From Dave Stanley <dstanl...@gmail.com>
Subject Re: ActiveMQ becomes slow for consumer
Date Mon, 04 Jan 2010 19:02:46 GMT
Also, if the consumer is embedded with the broker make sure your using
the vm transport e.g. vm://localhost vs tcp://localhost:61616. You may
also need to configure some concurrent consumers on your camel route.

Regards
/Dave

On Sun, Jan 3, 2010 at 5:34 PM, Rob Davies <rajdavies@gmail.com> wrote:
> I'd try 5.3 - there's been a lot of issues resolved since 5.2 - its possible
> you've hit an resolved issue
> On 3 Jan 2010, at 18:11, softsky wrote:
>
>>
>> Hello guys.
>>
>> My situation is:
>> Using AMQ 5.2.0. Have 1 consumer and 10 producers. Producers sends
>> thousands
>> of messages (in total) to some queue from different boxes. Consumer
>> consumes
>> them with some speed. Producers produce more messages per some time, then
>> consumer can handle. If I run same consumer and up to 3 producers -
>> everything works fine for weeks. Queue is always empty as consumer picks
>> messages up as fast as 3 producers produce them. However, if I run more
>> producers - AMQ becomes slave. The more messages sits in the queue - the
>> slower AMQ is. I've tried different combinations of persistence adapter
>> configuration.
>>
>> In my case it's:
>> syncOnWrite="false"
>> maxFileLength="32mb"
>> indexBinSize="16384"
>> indexPageSize="128kb"
>>
>> But this seems does not help much. I'm almost assured there's no
>> side-effect
>> on OS-level (e.g. many files opened, too high swap usage  - nothing). CPU
>> on
>> the box where consumer (and AMQ server) sits is almost IDLE. Looks like
>> AMQ
>> just sends too few messages to consumer for some reason (get slower and
>> slower sending messages). One more detail - AMQ is running as embedded
>> inside another container (so both AMQ and consumer code works inside same
>> JVM. Consumer use Apache Camel to process messages).
>>
>>
>> --
>> View this message in context:
>> http://old.nabble.com/ActiveMQ-becomes-slow-for-consumer-tp27002970p27002970.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>
> Rob Davies
> http://twitter.com/rajdavies
> I work here: http://fusesource.com
> My Blog: http://rajdavies.blogspot.com/
> I'm writing this: http://www.manning.com/snyder/
>
>
>
>
>
>

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