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From Colleen Velo <cmv...@gmail.com>
Subject Re: Even after upgrade to ActiveMQ 5.4.0, still seeing negative #'s in the "Pending Msgs" column
Date Fri, 03 Sep 2010 18:37:21 GMT
Gary,

Thanks for the clarification - still working on a JUnit test.
Currently right now the steps that I use to reproduce it is
to have the 3 producers each send *60,000* messages each to
the ActiveMQ cluster at the same time - more often than
not, when the queue is trending down towards 0 on the
broker(s), sometimes a negative # will appear in the "Pending Msgs"
column (it has been frustrating because it seems to happen
intermittently).

*Current Setup:*

• 3 producers
• 3 brokers (all part of the same ActiveMQ cluster)
• 3 consumers
• 1 queue


*Broker definition*:
        • <networkConnector name="ActiveMQ Cluster"
uri="static:(tcp://brokersvr1:61616,tcp://brokersvr2:61616,tcp://brokersvr3:61616)"
conduitSubscriptions="false" dynamicOnly="true"
decreaseNetworkConsumerPriority="true"
suppressDuplicateQueueSubscriptions="true" duplex="false" networkTTL="5"/>

*Client definition:*
      •
amq.publisher.broker.url=failover\:tcp\://brokersvr1\:61616?wireFormat.maxInactivityDuration=0&daemon=true,tcp\://brokersvr2\:61616?wireFormat.maxInactivityDuration=0&daemon=true,tcp\://brokersvr3\:61616?wireFormat.maxInactivityDuration=0&daemon=true


Let me know if you have any more questions and I'll pass along the JUnit
test as soon
as I can get one to fail consistently.

Thanks,

-- 
Colleen Velo
email: cmvelo@gmail.com


On Thu, Sep 2, 2010 at 2:25 AM, Gary Tully <gary.tully@gmail.com> wrote:

> Some series of steps that can reproduce or in the ideal case a junit
> test we can drop into the source.
>
> On Wednesday, September 1, 2010, Colleen Velo <cmvelo@gmail.com> wrote:
> > Gary
> > re: JConsole - don't know yet. I will try to hook JConsole up and look
> > through that as well -
> > currently using the bundled web admin console.
> >
> > As far as test case, I don't have one - just the standard message traffic
> > from
> > our producers to our consumers (slightly less than the traffic that is
> > running
> > currently in our Product environment with ActiveMQ server version 5.2.0.
> >
> > What would you need exactly for a "test" case?
> >
> > Thanks,
> >
> > --
> > Colleen Velo
> > *email: cmvelo@gmail.com*
> >
> >
> > On Wed, Sep 1, 2010 at 8:52 AM, Gary Tully <gary.tully@gmail.com> wrote:
> >
> >> does jconsole show the same negative number? Do you have a test case?
> >>
> >> On 1 September 2010 13:52, Colleen Velo <cmvelo@gmail.com> wrote:
> >> > After only running my 3 ActiveMQ brokers for short time, I am seeing
> >> > negative numbers in
> >> > the "Number of Pending Messages" column.  I started seeing this at
> 5.3.2
> >> > (after upgrading
> >> > from 5.2.0) and opened and issue on it:
> >> >            • https://issues.apache.org/activemq/browse/AMQ-2887
> >> >
> >> > It was recommended that I upgrade to ActiveMQ 5.4.0, which I did,
> >> however, I
> >> > am still
> >> > seeing this issue.
> >> >
> >> > Current Environment:
> >> > • CentOS release 5.2 (both consumers and brokers)
> >> > • 3 ActiveMQ brokers
> >> > • 7 consumers (across different queues)
> >> >
> >> >
> >> > Thanks,
> >> >
> >> > --
> >> > Colleen Velo
> >> > email: cmvelo@gmail.com
> >> >
> >>
> >>
> >>
> >> --
> >> http://blog.garytully.com
> >>
> >> Open Source Integration
> >> http://fusesource.com
> >>
> >
>
> --
> http://blog.garytully.com
>
> Open Source Integration
> http://fusesource.com
>

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