Keith Wall created QPID-5647:
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Summary: [Java Broker] Spurious DLQ is created when DLQ are
enabled at Broker (or Virtualhost) level
Key: QPID-5647
URL: https://issues.apache.org/jira/browse/QPID-5647
Project: Qpid
Issue Type: Bug
Components: Java Broker
Affects Versions: 0.28, 0.29
Reporter: Keith Wall
If I turn on DLQs at Broker level, then create a new durable queue (my queue),
the system automatically creates the DLQ and DLE (myqueue_DLQ and myqueue_DLE
respectively). If I then restart the Broker, I find that the not only do I
have the queues/exchanges described above, the system also creates a additional
DLQ called myqueue_DLQ_DLQ.
The output from the logs on restart:
{noformat}
2014-03-27 13:55:33,427 INFO [Broker-Configuration-Thread] (exchange.created)
- [Broker] EXH-1001 : Create : Durable Type: headers Name: amq.match
2014-03-27 13:55:33,430 INFO [Broker-Configuration-Thread] (exchange.created)
- [Broker] EXH-1001 : Create : Durable Type: topic Name: amq.topic
2014-03-27 13:55:33,433 INFO [Broker-Configuration-Thread] (exchange.created)
- [Broker] EXH-1001 : Create : Durable Type: direct Name: amq.direct
2014-03-27 13:55:33,434 INFO [Broker-Configuration-Thread] (exchange.created)
- [Broker] EXH-1001 : Create : Durable Type: fanout Name: amq.fanout
2014-03-27 13:55:33,435 INFO [Broker-Configuration-Thread]
(messagestore.recovery_start) - [Broker] [vh(/default)/ms(DerbyMessageStore)]
MST-1004 : Recovery Start
2014-03-27 13:55:33,552 INFO [Broker-Configuration-Thread] (exchange.created)
- [Broker] EXH-1001 : Create : Durable Type: fanout Name: myqueue_DLE
2014-03-27 13:55:33,582 INFO [Broker-Configuration-Thread] (queue.created) -
[Broker] [vh(/default)/qu(myqueue_DLQ)] QUE-1001 : Create : Durable
2014-03-27 13:55:33,582 INFO [Broker-Configuration-Thread] (exchange.created)
- [Broker] EXH-1001 : Create : Durable Type: fanout Name: myqueue_DLQ_DLE
2014-03-27 13:55:33,583 INFO [Broker-Configuration-Thread] (queue.created) -
[Broker] [vh(/default)/qu(myqueue_DLQ_DLQ)] QUE-1001 : Create : Durable
2014-03-27 13:55:33,586 INFO [Broker-Configuration-Thread] (binding.created) -
[Broker] [vh(/default)/ex(fanout/myqueue_DLQ_DLE)/qu(myqueue_DLQ_DLQ)/rk(dlq)]
BND-1001 : Create
2014-03-27 13:55:33,588 INFO [Broker-Configuration-Thread] (binding.created) -
[Broker] [vh(/default)/ex(fanout/myqueue_DLE)/qu(myqueue_DLQ)/rk(dlq)] BND-1001
: Create
2014-03-27 13:55:33,589 INFO [Broker-Configuration-Thread] (queue.created) -
[Broker] [vh(/default)/qu(myqueue)] QUE-1001 : Create : Durable
2014-03-27 13:55:33,591 INFO [Broker-Configuration-Thread]
(configstore.recovery_complete) - [Broker] [vh(/default)/ms(DerbyMessageStore)]
CFG-1005 : Recovery Complete
2014-03-27 13:55:33,643 INFO [Broker-Configuration-Thread]
(transactionlog.recovery_start) - [Broker] [vh(/default)/ms(DerbyMessageStore)]
TXN-1004 : Recovery Start
2014-03-27 13:55:33,665 INFO [Broker-Configuration-Thread]
(transactionlog.recovery_complete) - [Broker]
[vh(/default)/ms(DerbyMessageStore)] TXN-1006 : Recovery Complete
2014-03-27 13:55:33,666 INFO [Broker-Configuration-Thread]
(messagestore.recovery_complete) - [Broker]
[vh(/default)/ms(DerbyMessageStore)] MST-1006 : Recovery Complete
{noformat}
This is a regression introduced by QPID-5625 (rev. 1576826).
It appears that the system is no longer persisting x-qpid-dlq-enabled=false,
on the DLQ, so the global setting means that on restart the system create
another.
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