I've experienced this on 5.1.0, 5.2.0 and a 5.3.0 snapshot from 2 weeks back.
Frugia, Kirby A wrote: > > 5.1.0. I believe it's happening with 5.2.0, too, but have not thoroughly > tested. > > The problem is that the broker runs out of memory. At the point in time > of the failure, no more messages could be sent anyway because the broker > is out of memory. > > So we're less worried about blocking producers and more worried about how > to maintain the health of the broker. We set the message queue limits to > prevent more than X messages on a topic for each consumer. The queue > limits are only set to prevent the broker from running out of memory if a > particular consumer starts blocking. We are hoping that if a consumer > dies, the queue limits will at least keep any message queues for the dead > consumer from going out of control. > > -----Original Message----- > From: Bruce Snyder [mailto:[EMAIL PROTECTED] > Sent: Monday, December 08, 2008 10:17 AM > To: users@activemq.apache.org > Subject: Re: Broker not releasing memory > > On Mon, Dec 8, 2008 at 7:28 AM, Frugia, Kirby A <[EMAIL PROTECTED]> > wrote: >> I can reproduce this with the non-embedded, out-of-the-box broker. I >> also think it's an under-the-hood problem. >> >> Until we get a fix, we've set pending message queue limits on our busy >> topics. So, for example, the broker will only queue up 500 messages on a >> particular topic per consumer. This will prevent things from getting too >> out of hand on a single client crash, but is not the solution to the >> problem. > > What version of ActiveMQ are you using? Also, have you disabled > producer flow control to allow the producer to continue to send even > when the consumer is going very slow? > > Bruce > -- > perl -e 'print > unpack("u30","D0G)[EMAIL PROTECTED]&5R\"F)R=6-E+G-N>61E<D\!G;6%I;\"YC;VT*" > );' > > Apache ActiveMQ - http://activemq.org/ > Apache Camel - http://activemq.org/camel/ > Apache ServiceMix - http://servicemix.org/ > > Blog: http://bruceblog.org/ > > -- View this message in context: http://www.nabble.com/Broker-not-releasing-memory-tp20662078p20910288.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
