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From "Chris Robison (JIRA)" <>
Subject [jira] [Commented] (AMQ-3851) Infinite TemqQueue advisory messages
Date Tue, 02 Oct 2012 15:19:07 GMT


Chris Robison commented on AMQ-3851:

No, I just made some changes so that the regular cachedLDAPAuthorizationMap would work with
Active Directory. Those changes have now been put into trunk so I could still go back to using
the regular one and still see the problem. In a previous comment I said that I wrote an extremely
simple plugin that always returned the same ACLs and was still able to reproduce the problem.
To reproduce the issue, I just setup a simple request/reply system using text messages. I
believe I've attached the code I used. There was never a set number of messages I had to send
before the flooding started. At first I was only able to reproduce the problem going over
VPN, but eventually I was able to reproduce the problem between VMs.
> Infinite TemqQueue advisory messages
> ------------------------------------
>                 Key: AMQ-3851
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.6.0
>            Reporter: Chris Robison
>            Assignee: Dejan Bosanac
>         Attachments: ActiveMqMessagingProvider.cs, ActiveMqRequestReceiver.cs,,
mssd5d101-activemq.xml, mstmip103-activemq.xml, run-2012-05-30.snapshot, web-portal-code-snippet.cs
> I'm seeing a behavior that looks like a race condition of some kind. I have two brokers
(MSSD5D101, MSTMIP103). MSSD5D101 has a duplex network connector connecting it to MSTMIP103.
The two machines are in different US states so there is a VPN in between. I have two consumer
services that reply to queued messages. One consumer (WISD5P101) connects to MSSD5D101 and
the other consumer (POSD5P101) connects to MSTMIP103. I also have a web portal that sends
messages out to different queues expecting a response. The web portal, and two consumers are
all .NET based. 
> What is happening is that after some number of messages, something goes crazy and floods
the network of brokers with advisory messages pertaining to temp queues being added or removed.
By restarting one or the other of the ActiveMQ servers, things return to normal. But, while
the flood is happening, one of the machines will be at 100% CPU and become worthless. I will
be attaching logs and some code that I'm using to interact with ActiveMQ.

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