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From Rob Davies <rajdav...@gmail.com>
Subject Re: ActiveMQ becomes slow for consumer
Date Sun, 03 Jan 2010 22:34:59 GMT
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
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