The number of producers and the message volume should both be irrelevant. Though of course if there's a bug, all bets are off.
On Apr 8, 2018 5:53 AM, "Lionel van den Berg" <lion...@gmail.com> wrote: I’m going to try to get someone to try your suggestions at site tomorrow. Regarding your question, yes, the subscriber is a server that is started before the producers and never restarted. Does it matter that there are multiple producers to the topic. Also it’s a very low volume topic, there is lots of data on other topics on the same connection. On Sun, 8 Apr 2018 at 1:43 am, Tim Bain <tb...@alumni.duke.edu> wrote: > I'd suggest you use a JMX viewer such as JConsole, and navigate through the > org.apache.activemq MBeans to find the subscription in question. On the > Attributes page under the subscription, you'll see counts for the number of > messages enqueued and dequeued. > > If those don't match, it means your messages are not getting delivered to > the subscriber. (Could they be expiring before they can be consumed?) > > If they match, but are lower than the number you sent to the topic while > the consumer was subscribed, we'll have to dig deeper. > > Also, I understand from your response that these consumers have been > subscribed and connected the entire time the messages were being sent. Is > that what you're saying? > > Tim > > On Fri, Apr 6, 2018 at 7:11 AM, Lionel van den Berg <lion...@gmail.com> > wrote: > > > Non-durable an using the same connection as other topics that are still > > working. No filters. > > > > > > On Fri, 6 Apr 2018 at 11:03 pm, Tim Bain <tb...@alumni.duke.edu> wrote: > > > > > Are the topic subscriptions durable or non-durable? If the latter, were > > the > > > clients disconnected at the time the messages in question were sent? > > > > > > Also, do the subscribers in question use any selectors? > > > > > > Tim > > > > > > On Fri, Apr 6, 2018, 12:26 AM Lionel van den Berg <lion...@gmail.com> > > > wrote: > > > > > > > Another kind of vague one. We have found from our application logs at > > > site > > > > that some messages that we are sending appear to be sent OK on one > end > > > but > > > > are never received by the subscriber. > > > > > > > > This seems to coincide with topics where the traffic volume is low, > > does > > > > anyone have any pointers on where to look first? > > > > > > > > > >