Joachim Glink created AMQ-6695:
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Summary: MirrorQueue - send a copy to the mirror topic instead of
original message
Key: AMQ-6695
URL: https://issues.apache.org/jira/browse/AMQ-6695
Project: ActiveMQ
Issue Type: Improvement
Components: Broker
Affects Versions: 5.x
Reporter: Joachim Glink
Priority: Minor
The MirrorQueue implementation currently sends the original message to the
mirror topic and a copy (if copy flag is set to true) of the message to the
requested destination.
Also, the MemoryUsage on the message which is sent to the requested destination
is set to null but the comment in the line notes that it´s done so the memory
size is used from the queue instead of the topic which isn´t the case; its vise
versa. (At least in my opinion)
Another possible bug in my opinion is, that the MemoryUsage is set to null even
if the copy flag is false; so the same message is sent to the mirror and
destination but the MemoryUsage is set to null. This could lead to a false
calculation of the broker storage.
If there are further plugins configured, than these plugins see the original
message in e.g. the send method. But this message isn´t the message which will
be sent to the defined destination but the message which is sent to the mirror.
I´d suggest to reverse the logic of the MirrorQueue so that a copy of the
message is sent to the mirror topic and the original message to the requested
destination (and also the MemoryUsage of this copy is set to null - and only if
it´s a copy!)
A patch is attached to this issue which would cover the changes.
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