Messages redelivered when doing transactional consume from one queue to >1
consumers.
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Key: QPID-617
URL: https://issues.apache.org/jira/browse/QPID-617
Project: Qpid
Issue Type: Bug
Affects Versions: M2
Environment: Java client/broker.
Reporter: Rupert Smith
Fix For: M2
I ran the following test:
./Ping-Once-Async.sh -n strange_redelivery_test -s[10] -c[1] persistent=false
pubsub=false transacted=true commitBatchSize=1 batchSize=1000 messageSize=256
destinationCount=1 uniqueDests=false consTransacted=true numConsumers=4
broker=tcp://10.0.0.1:9000
Which reports:
.Got redelivered message, ignoring.
Got redelivered message, ignoring.
Got redelivered message, ignoring.
Got redelivered message, ignoring.
The test is delivering mesages, round robin to 4 consumers (2 is enough to show
the problem), on a common queue. The sender controls the test, and does not
terminate the test until all of the consumers have received and committed all
of their test messages. The consumers will commit their transactions at the end
of the test.
Either, something strange is happening, where messages that should have been
acked because they were committed are being redelivered on connection close,
or, the connection is being closed before all of the consumers have finished
committing. In the latter case, the PPP test is at fault and needs to be fixed.
This problem does not show up when the consumers are using auto_ack.
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