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Posted to gitbox@activemq.apache.org by GitBox <gi...@apache.org> on 2019/10/09 02:24:03 UTC
[GitHub] [activemq-artemis] gaohoward opened a new pull request #2859:
ARTEMIS-2513 Large message's copy may be interfered by other threads
gaohoward opened a new pull request #2859: ARTEMIS-2513 Large message's copy may be interfered by other threads
URL: https://github.com/apache/activemq-artemis/pull/2859
In LargeMessageImpl.copy(long) it need to open the underlying
file in order to read and copy bytes into the new copied message.
However there is a chance that another thread can come in and close
the file in the middle, making the copy failed
with "channel is null" error.
This is happening in cases where a large message is sent to a jms
topic (multicast address). During delivery it to multiple
subscribers, some consumer is doing delivery and closed the
underlying file after. Some other consumer is rolling back
the messages and eventually move it to DLQ (which will call
the above copy method). So there is a chance this bug being hit on.
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