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From "Pavel Moravec (JIRA)" <j...@apache.org>
Subject [jira] [Created] (QPID-5116) QMF method "queueMoveMessages" loses one message when moving to full queue
Date Thu, 05 Sep 2013 12:20:52 GMT
Pavel Moravec created QPID-5116:
-----------------------------------

             Summary: QMF method "queueMoveMessages" loses one message when moving to full
queue
                 Key: QPID-5116
                 URL: https://issues.apache.org/jira/browse/QPID-5116
             Project: Qpid
          Issue Type: Bug
          Components: C++ Broker
    Affects Versions: 0.22
            Reporter: Pavel Moravec
            Priority: Minor


Invoking QMF method "queueMoveMessages" where destination queue can't handle all moved messages
due to its capacity, one message is lost.

Reproducer:

$ qpid-receive -a "tinyQueue; {create:always, node:{ x-declare:{ arguments:{'qpid.max_count':100}}}}"
$ qpid-send -a "fromQueue; {create:always}" -m 1000
$ qpid-tool
Management Tool for QPID
qpid: list broker
Object Summary:
    ID   Created   Destroyed  Index
    =======================================
    117  08:11:52  -          amqp-broker
qpid: call 117 queueMoveMessages fromQueue tinyQueue 300 {}
qpid: resource-limit-exceeded: Policy exceeded on tinyQueue, policy: size: max=104857600,
current=1000; count: max=100, current=100; type=reject (qpid/broker/QueuePolicy.cpp:92) (7)
- {}
qpid: quit
Exiting...
$ qpid-stat -q
Queues
  queue                                     dur  autoDel  excl  msg   msgIn  msgOut  bytes
 bytesIn  bytesOut  cons  bind
  =========================================================================================================================
  3d03d063-4f1e-4cc2-822f-00d95d7e42e9:0.0       Y        Y        0     0      0       0
     0        0         1     2
  fromQueue                                                      899  1.00k   101    8.99k
 10.0k    1.01k        0     1
  tinyQueue                                                      100   100      0    1.00k
 1.00k       0         0     1
$

See fromQueue has dequeued 101 messages while tinyQueue enqueued just 100.

(relevant discussion: http://qpid.2158936.n2.nabble.com/QMF-method-quot-queueMoveMessages-quot-can-loose-one-message-td7597804.html)


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