ok, I guess this is going to be very hard to track down without a reproducible test case. Can you confirm that it is just the stats that are wrong in this case, and that all expected messages are getting delivered as expected.
On 9 September 2010 14:28, Colleen Velo <cmv...@gmail.com> wrote: > Gary, > > That doesn't seem to be the case here - namely, the JConsole queue count is > accurately > reflecting what the ActiveMQ web console is showing. I have rechecked our > application > code as well as the ActiveMQ server settings and in both cases we are using > the default > *dispatchAsync* value of false which, according to your blog post from Jan > 2010, should > take care of the "inflight" counts issue. > > It seems to be more a case where the queue "counters" seem to get "thrown > off" > and never get back in-sync until the broker is restarted. > For example, I can see a number "-10" in the "Pending Messages" on the > ActiveMQ > web admin console (and in JConsole), but clicking on the queue name and > showing > the actual contents of the queue might reveal 0 items or 5 items, etc. > (Note: in the above scenario, the producers were not putting any new items > onto the > queue, so the # of "Pending Messages" wasn't changing). > > > On Thu, Sep 9, 2010 at 5:44 AM, Gary Tully <gary.tu...@gmail.com> wrote: > >> Is it by any chance the inflight count in jconsole that is negative? >> There is a good explanation for that, >> http://blog.garytully.com/2010/01/activemq-prefetch-and-asyncdispatch.html >> >> On 8 September 2010 21:42, Colleen Velo <cmv...@gmail.com> wrote: >> > Gary, >> > * * >> > *Sorry - last message was incomplete - technical difficulties* >> > >> > Haven't had any luck reproducing this issue with a JMeter test, however, >> I >> > can reproduce >> > it on a fairly regular basis using our in-house application script, which >> > puts tons of application >> > messages on the queues. >> > >> > Also, I don't seem to see this issue when there is only a single broker >> > running, only when >> > there is two or more running in a network of brokers configuration. >> > >> > When I do see this issue, I •do• see it on JConsole as well as in the >> > ActiveMQ WebAdmin console. >> > >> > *Possible Test Case:* >> > >> > To reproduce, start up multiple Producers, both of which are throwing >> > 80,000+ messages >> > to the two brokers (which are configured as a network of brokers ) and >> have >> > two consumers running on >> > separate servers pulling items off of the application queue(s). >> > >> > >> > On Wed, Sep 8, 2010 at 3:39 PM, Colleen Velo <cmv...@gmail.com> wrote: >> > >> >> Gary, >> >> >> >> Haven't had any luck reproducing this issue with a JMeter test, however, >> I >> >> can reproduce >> >> it on a fairly regular basis using our in-house application script, >> which >> >> puts >> >> >> >> Also, I don't seem to see this issue when there is only a single broker >> >> running, only when >> >> there is two or more running in a network of brokers configuration. >> >> >> >> When I do see this issue, I •do• see it on JConsole as well as in the >> >> ActiveMQ WebAdmin console. >> >> >> >> >> > >> >> To reproduce, start up multiple Producers, both of which are throwing >> >> 80,000+ messages >> >> at two brokers (which are networked together) and have the two consumers >> >> running on >> >> separate servers pulling items off of the application queue. >> >> >> >> On Wed, Sep 1, 2010 at 8:52 AM, Gary Tully <gary.tu...@gmail.com> >> wrote: >> >> >> >>> does jconsole show the same negative number? Do you have a test case? >> >>> >> >>> On 1 September 2010 13:52, Colleen Velo <cmv...@gmail.com> wrote: >> >>> > After only running my 3 ActiveMQ brokers for short time, I am seeing >> >>> > negative numbers in >> >>> > the "Number of Pending Messages" column. I started seeing this at >> 5.3.2 >> >>> > (after upgrading >> >>> > from 5.2.0) and opened and issue on it: >> >>> > • https://issues.apache.org/activemq/browse/AMQ-2887 >> >>> > >> >>> > It was recommended that I upgrade to ActiveMQ 5.4.0, which I did, >> >>> however, I >> >>> > am still >> >>> > seeing this issue. >> >>> > >> >>> > Current Environment: >> >>> > • CentOS release 5.2 (both consumers and brokers) >> >>> > • 3 ActiveMQ brokers >> >>> > • 7 consumers (across different queues) >> >>> > >> >>> > >> >>> > Thanks, >> >>> > >> >>> > -- >> >>> > Colleen Velo >> >>> > email: cmv...@gmail.com >> >>> > >> >>> -- >> >>> http://blog.garytully.com >> >>> >> >>> Open Source Integration >> >>> http://fusesource.com >> >>> >> >> > >> >> >> >> -- >> http://blog.garytully.com >> >> Open Source Integration >> http://fusesource.com >> > > > > -- > Colleen Velo > email: cmv...@gmail.com > -- http://blog.garytully.com Open Source Integration http://fusesource.com
