Ah, that's the parameter i needed. Thanks Jon!
On Mon, Aug 1, 2011 at 11:16 AM, Jon Anstey <jans...@gmail.com> wrote: > Maybe try setting maxMessagesPerTask to a positive value? Seems to imply > that this is required here when the feature was introduced: > https://jira.springsource.org/browse/SPR-2814 I haven't tried this for > myself though :) > > On Mon, Aug 1, 2011 at 3:19 PM, Tommy Chheng <tommy.chh...@gmail.com> > wrote: > > > Thanks Jon, > > Upon reading the Spring documentation link, I'm a little confused about > > dynamic scaling of consumers. > > > > *There is another parameter IdleTaskExecutionLimit which states it > > should close idle resources:* > > > > The default is 1, closing idle resources early once a task didn't receive > a > > message. This applies to dynamic scheduling only; see the > > "maxConcurrentConsumers"< > > > http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/jms/listener/DefaultMessageListenerContainer.html#setMaxConcurrentConsumers(int) > > > > > setting. > > The minimum number of consumers (see > > "concurrentConsumers"< > > > http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/jms/listener/DefaultMessageListenerContainer.html#setConcurrentConsumers(int) > > >) > > will be kept around until shutdown in any case. > > > > > > This one is currently supported in camel-jms but even with > > concurrentConsumers=2&maxConcurrentConsumers=20&IdleTaskExecutionLimit=1, > > the consumer count stays at 20 after idling > 5 minutes. > > > > > > On Mon, Aug 1, 2011 at 10:40 AM, Jon Anstey <jans...@gmail.com> wrote: > > > > > FYI idleConsumerLimit will be configurable in the next release of Camel > > > (2.9) see https://issues.apache.org/jira/browse/CAMEL-4290 > > > > > > On Mon, Aug 1, 2011 at 2:41 PM, Claus Ibsen <claus.ib...@gmail.com> > > wrote: > > > > > > > Hi Tommy > > > > > > > > Fell free to create a JIRA ticket as I there may be new/missing > > > > options from DMLC that we have not exposed in camel-jms yet. > > > > > > > > > > > > > > http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springframework/jms/listener/DefaultMessageListenerContainer.html > > > > > > > > > > > > > > > > On Mon, Aug 1, 2011 at 6:52 PM, Tommy Chheng <tommy.chh...@gmail.com > > > > > > wrote: > > > > > Looking at > > > > > > > > > > > > > > > http://bsnyderblog.blogspot.com/2010/05/tuning-jms-message-consumption-in.html > > > > , > > > > > it looks like the setting i need is idleConsumerLimit > > > > > > > > > > "idleConsumerLimit property specifies the limit on the number of > idle > > > > > consumers" > > > > > I think this means that after the message volume decreases, the > > > consumers > > > > > will become idle and thus be limited to this parameter. > > > > > > > > > > Unfortunately, I get a Unknown parameters=[{idleConsumerLimit=10}] > > when > > > i > > > > > use it in the activemq connection for camel. > > > > > > > > > > I notice this is parameter is not listed in > > > > http://camel.apache.org/jms.html > > > > > > > > > > Is this the right parameter or is there a workaround? > > > > > > > > > > > > > > > On Mon, Aug 1, 2011 at 8:56 AM, Claus Ibsen <claus.ib...@gmail.com > > > > > > wrote: > > > > > > > > > >> On Mon, Aug 1, 2011 at 5:12 PM, Tommy Chheng < > > tommy.chh...@gmail.com> > > > > >> wrote: > > > > >> > I'm using camel 2.7.2 and connecting to an ActiveMQ queue with > > > > >> > concurrentConsumers=2&maxConcurrentConsumers=20 > > > > >> > > > > > >> > Should the current # of concurrent consumers dynamically adjust > > due > > > to > > > > >> > message volume from activemq? > > > > >> > > > > > >> > At the start, when there are 0 messages, the # of consumers is > 2. > > > > >> > When I have a large volume, the # of consumers goes up to 20, > but > > > > after > > > > >> the > > > > >> > volume goes back to 0, the current # of consumers still remain > at > > > 20. > > > > >> > > > > > >> > > > > >> The threads should have a idel time, that after X period should > > cause > > > > >> them to terminate. > > > > >> Check the spring documentation as its the spring-jms message > > listener > > > > >> container, that is used > > > > >> when consuming messages. > > > > >> > > > > >> > > > > >> > I'm checking the # of consumers using the activemq web console. > > > > >> > > > > > >> > Any ideas how to make the # of consumers go back to 2 when > there's > > > no > > > > >> > volume? > > > > >> > > > > > >> > -- > > > > >> > @tommychheng > > > > >> > http://tommy.chheng.com > > > > >> > > > > > >> > > > > >> > > > > >> > > > > >> -- > > > > >> Claus Ibsen > > > > >> ----------------- > > > > >> FuseSource > > > > >> Email: cib...@fusesource.com > > > > >> Web: http://fusesource.com > > > > >> Twitter: davsclaus, fusenews > > > > >> Blog: http://davsclaus.blogspot.com/ > > > > >> Author of Camel in Action: http://www.manning.com/ibsen/ > > > > >> > > > > > > > > > > > > > > > > > > > > -- > > > > > @tommychheng > > > > > http://tommy.chheng.com > > > > > > > > > > > > > > > > > > > > > -- > > > > Claus Ibsen > > > > ----------------- > > > > FuseSource > > > > Email: cib...@fusesource.com > > > > Web: http://fusesource.com > > > > Twitter: davsclaus, fusenews > > > > Blog: http://davsclaus.blogspot.com/ > > > > Author of Camel in Action: http://www.manning.com/ibsen/ > > > > > > > > > > > > > > > > -- > > > Cheers, > > > Jon > > > --------------- > > > FuseSource > > > Email: j...@fusesource.com > > > Web: fusesource.com > > > Twitter: jon_anstey > > > Blog: http://janstey.blogspot.com > > > Author of Camel in Action: http://manning.com/ibsen > > > > > > > > > > > -- > > @tommychheng > > http://tommy.chheng.com > > > > > > -- > Cheers, > Jon > --------------- > FuseSource > Email: j...@fusesource.com > Web: fusesource.com > Twitter: jon_anstey > Blog: http://janstey.blogspot.com > Author of Camel in Action: http://manning.com/ibsen > -- @tommychheng http://tommy.chheng.com
