[jira] Updated: (CAMEL-14) add ability to pool routes/steps for parallel processing

["James Strachan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/CAMEL-14?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Strachan updated CAMEL-14:
--------------------------------

    Fix Version/s:     (was: 1.2.0)
                   1.3.0

> add ability to pool routes/steps for parallel processing
> --------------------------------------------------------
>
>                 Key: CAMEL-14
>                 URL: https://issues.apache.org/activemq/browse/CAMEL-14
>             Project: Apache Camel
>          Issue Type: New Feature
>          Components: camel-core
>            Reporter: Noah Nordrum
>             Fix For: 1.3.0
>
>
> If you have a route that goes through a processor that is expensive, you may want to pool that processor so it's not holding up the rest of the route.
> Configuration could look as such:
> {code:java}
> from("activemq:queue:SOMETHING").pool(5 [min], 15 [max]).process(new ExpensiveMessageEnricher()).to("activemq:queue:SOMEWHERE_ELSE");
> or
> from("activemq:queue:SOMETHING").process(new ExpensiveMessageEnricher()).pool(5 [min], 15 [max]).to("activemq:queue:SOMEWHERE_ELSE");
> {code}
> I'm not sure exactly how these would differ, but I think the first one would have 5-15 MQ queue listeners, which would all go through 1 EME, and then through 1 mq producer, and the second would have 1 mq listener that would dispatch to one of the 5-15 EME threads (if available?, not sure if that level of interaction between steps is good), and then go through 1 mq producer.
> Seems like the first would be the better option as I write this...
> Notes from IRC convo with James:
> first thought is; we might wanna wrap a Producer in a factory thingy that does pooling (e.g. like the way spring does pooling using interceptors etc); but that the pool part could be done wherever a Processor can be used

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