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Date: Wed, 8 Sep 2010 20:32:41 -0400 (EDT)
From: "C Velo (JIRA)" <jira@apache.org>
To: dev@activemq.apache.org
Subject: [jira] Issue Comment Edited: (AMQ-2887) Seeing negative numbers in
 the "Number Of Pending Messages" column in the web console
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    [ https://issues.apache.org/activemq/browse/AMQ-2887?page=3Dcom.atlassi=
an.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D61=
738#action_61738 ]=20

C Velo edited comment on AMQ-2887 at 9/8/10 8:32 PM:
-----------------------------------------------------

I can also see the negative queue counts in JConsole as well.

Haven't been able to reproduce a test case with this using JMeter, however,
I have been able to reproduce this via using an in-house test script which
puts large #'s of our application-specific messages on the application queu=
es,
which are then pulled off by application consumers which also do database w=
ork.

+Scenario:+
            =E2=80=A2 Producers: 3
            =E2=80=A2=C2=A0Brokers (network of brokers): 2
            =E2=80=A2=C2=A0Consumers (application consumers): 2

Our message sizes are small - all of them under 1k.

----

To reproduce, start up multiple Producers, both of which are throwing 80,00=
0+ messages
at two brokers (which are networked together) and have the two consumers ru=
nning on=20
separate servers pulling items off of the application queue.

----

+NetworkConnector snippet:+
{code}
        <networkConnector name=3D"ActiveMQ Cluster" uri=3D"static:(tcp://br=
oker1:61616,tcp://broker2:61616,tcp://broker3:61616)" \
conduitSubscriptions=3D"false" \
dynamicOnly=3D"true" \
decreaseNetworkConsumerPriority=3D"false" \
suppressDuplicateQueueSubscriptions=3D"true" \
duplex=3D"true" \
networkTTL=3D"5"/>
        </networkConnectors>
{code}


      was (Author: cvelo):
    I can also see the negative queue counts in JConsole as well.

Haven't been able to reproduce a test case with this using JMeter, however,
I have been able to reproduce this via using an in-house test script which
puts large #'s of our application-specific messages on the application queu=
es.

+Scenario:+
            =E2=80=A2 Producers: 3
            =E2=80=A2=C2=A0Brokers (network of brokers): 2
            =E2=80=A2=C2=A0Consumers (application consumers): 2

Our message sizes are small - all of them under 1k.

----

To reproduce, start up multiple Producers, both of which are throwing 80,00=
0+ messages
at two brokers (which are networked together) and have the two consumers ru=
nning on=20
separate servers pulling items off of the application queue.

----

+NetworkConnector snippet:+
{code}
        <networkConnector name=3D"ActiveMQ Cluster" uri=3D"static:(tcp://br=
oker1:61616,tcp://broker2:61616,tcp://broker3:61616)" \
conduitSubscriptions=3D"false" \
dynamicOnly=3D"true" \
decreaseNetworkConsumerPriority=3D"false" \
suppressDuplicateQueueSubscriptions=3D"true" \
duplex=3D"true" \
networkTTL=3D"5"/>
        </networkConnectors>
{code}


 =20
> Seeing negative numbers in the "Number Of Pending Messages" column in the=
 web console
> -------------------------------------------------------------------------=
------------
>
>                 Key: AMQ-2887
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2887
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.4.0
>         Environment: Linux 2.6.18-128.1.10.el5.xs5.5.0.51xen #1 SMP Wed N=
ov 11 07:38:08 EST 2009 i686 i686 i386 GNU/Linux
>            Reporter: C Velo
>         Attachments: activemq_broker1.xml, pubd-amq3_negative_counts.pdf
>
>
> Seeing negative numbers in the "Number Of Pending Messages" column in the=
 web console:
> ibsys.content.publication=09-9771=09262=091192568=091202339

--=20
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