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?


On Fri, Apr 6, 2018, 12:26 AM Lionel van den Berg <> 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?

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