Hi Joe Ack mode is auto and the sessions are not transacted. Thanks
-- Tìoraidh! Rick Blair > From: Joe Fernandez <[EMAIL PROTECTED]> > Reply-To: <users@activemq.apache.org> > Date: Sun, 12 Oct 2008 18:17:05 -0700 (PDT) > To: <users@activemq.apache.org> > Subject: Re: Problem with losing acks(?) > > > When creating sessions for your subscribers, what ack mode (AUTO, CLIENT, or > DUPS_OK) are you using and are your sessions transacted? > > Joe > Get a free ActiveMQ user guide @ http://www.ttmsolutions.com > > > Rick Blair wrote: >> >> Hi all, >> >> I am using ActiveMQ version 5.1 in a pub/sub system. The broker is >> embedded >> with the publishers. The publishers publish to 2 main topics with >> selectors. I have many subscribers distributed on the network. The >> subscriptions are based on the selectors. The messages are object >> messages. >> >> During execution one subscriber(not always the same one) seems to stop >> sending acks. >> >> In the subscriber I still see the onMessage method call being called. >> However on the broker, using jconsole looking at the subscription, the >> number of messages waiting for ack = the prefetch size and the number of >> queued messages increases. >> >> This goes on until the broker memory limit hits 100% and all message >> flow >> stops. >> >> We have tried to set the policies that discard older messages, but that >> did >> not help. The message discard count does increase to a point, then >> remains >> constant, while the enqueue count still increases. Also at this time many >> of the stats go negative. This very often occurs right after startup >> under >> heavy load on the producers. Thread dumps show no threads blocked, the >> CPU >> is not heavily loaded. GC does not seem to an issue. >> >> Any suggestions? >> >> -- >> Tìoraidh! >> >> Rick >> >> >> > > -- > View this message in context: > http://www.nabble.com/Problem-with-losing-acks%28-%29-tp19934087p19947672.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. >
