Github user clebertsuconic commented on the issue:
https://github.com/apache/activemq-artemis/pull/1578
@franz1981
https://github.com/apache/activemq-artemis/blob/37135617a8776c91c7e598ff11aa8bbc240ceafe/artemis-journal/src/main/java/org/apache/activemq/artemis/core/io/AbstractSequentialFileFactory.java#L80-L83
All you need is to set journal-timeout = 0... which wasn't being allowed on
the config (> 0).. I basically changed it allowing >= 0 and that's the change.
Regarding MAPPED.. I didn't merge that one before because I thought we were
lacking tests... I had a test on my workspace for Unbuffered.. but I think I
missed it...
I think we should change the CLI to make timeout = 0 if sync = false (for
all the journals.. not just MAPPED). and add a text on the broker.xml saying
we recommend disabling if sync=false.
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