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From "Michael J. Kitchin (JIRA)" <>
Subject [jira] Updated: (AMQCPP-290) Authentication error leads to pure virtual call/kaboom in CMS 3.1.1
Date Mon, 01 Mar 2010 22:41:50 GMT


Michael J. Kitchin updated AMQCPP-290:

    Attachment: amqcms_simpleproducer_03_01_10_1.cpp

amqcms_stack_traces_03_01_10_1.txt: Exception/thread stack traces 
amqcms_simpleproducer_03_01_10_1.cpp: Modified SimpleProducer.

> Authentication error leads to pure virtual call/kaboom in CMS 3.1.1
> -------------------------------------------------------------------
>                 Key: AMQCPP-290
>                 URL:
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>    Affects Versions: 3.1
>         Environment: Windows7/32bit, Windows Server 2003/32bit (clients), Windows7/Windows
Server/WindowsXP (broker)
>            Reporter: Michael J. Kitchin
>            Assignee: Timothy Bish
>         Attachments: amqcms_simpleproducer_03_01_10_1.cpp, amqcms_stack_traces_03_01_10_1.txt
> Hi there,
> We have a large, vertical C++ application with ActiveMQ connectivity added about a year
ago, steadily upgrading the CMS interface until current (v3.1.1) and, beginning before 3.0.1,
we noticed after consecutive login failures -- within our app, it takes from 3-10 actual retries
-- we find a pure virtual function call somewhere in the AMQ thread pool, triggering our built-in
crashdump mechanism and shutting things down.
> An exception that's at least cosmetically similar may be reproduced with the SimpleProducer,
as I've doctored it and attached to this email (not sure if attachments make it to the list...),
along with the thread stacks/traces witnessed at the time. Start SimpleProducer and, after
an indeterminate number of retries -- in this example, it could take several hundred -- the
circumstance should arise. The test is performed between two hosts, using AMQ broker v5.3
and CMS 3.1.1 and ought to manifest in either debug/release build.
> SimpleProducer has been altered to:
> ===================================
> - Provide username/password (in our test case, the username "foo" is incorrect)
> - Connect to a remote v5.3 AMQ broker
> - Loop the example indefinitely with a short delay between retries until (in a debug
build) a pure virtual assert should trip in the standard library
> Our application is built unusually in the following ways:
> =========================================================
> - AMQ CMS and APR are all reconfigured and built __stdcall, since our main application
is that way and name mangling won't otherwise match at link time
> - We don't have STL debug iterators enabled, so key AMQ CMS/APR headers are prepended
with (more or less):
> #endif
> ...This may seem like an odd circumstance, but we function in enterprises where AMQ connectivity
is only part of what our application is responsible for and, occasionally (for example) brokers
may be misconfigured and remain so for notable periods before changes make their way to all
of the clients, during which time we must remain operational in other regards. In practice,
as I've said, our application will experience the pure virtual call within a few minutes.
> Thank you for your time/assistance, in advance, and we otherwise very much appreciate
the functionality AMQ/CMS provides us.
> Please let me know if I may provide any additional information. Thanks.

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