Jason,
Thanks for the very thorough investigation; it's very much appreciated.
Yes, when you submit the bug in JIRA (you'll need to sign up for a JIRA
account), please describe the bug in enough detail that hopefully an
implementor will be able to understand the problem without referring back
to
Hi Tim, we managed to attach a debugger as requested and the path you
identified does seem to be the one taken by the incorrect update to
ACTIVEMQ_ACKS table in respect of DC1. We took several stack dumps (text
below) at the different debug points you requested in case that also helps.
Note
Tim, thanks for getting backwill do as you suggested and report back
soon.
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I think I've found the code that results in this behavior.
DurableTopicSubscription.unmatched() is called when a message fails to
match a selector for a given consumer, and it calls
Destination.acknowledge() which eventually calls
DefaultJDBCAdapter.doSetLastAck(). My suspicion is that this method
Tim, we appreciate any and all help the community can offer and we'll do what
we can to help ourselves.
You are correct in that a repeat of the test with only DC1 results in the
same behaviour and outcome. Pending messages for DC1 are lost/deleted after
messages arrive on the same topic but
Yes, I think it's our bug, but we need to figure out where. I'm hoping that
you can help narrow down the symptoms to make it easier to find and fix
(which increases the odds of it getting fixed, and is therefore in your
best interest).
Tim
On Nov 7, 2017 7:29 PM, "jasons"
Hi Tim, do you mean improper handling by our consumer code or improper
handling by ActiveMQ when selectors don't match?
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What happens if you run the same message stream with only DC1 subscribed? I
suspect that you'll see the same behavior, and that it stems not from
consumer cross-talk but from our improper handling of messages that don't
match the subscription's selector.
Tim
On Nov 6, 2017 10:42 PM, "jasons"
