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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AMQCPP-256) Transaction has not been started exceptions on the broker with parallel transacted sessions
Date Thu, 23 Jul 2009 14:28:33 GMT

     [ https://issues.apache.org/activemq/browse/AMQCPP-256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish updated AMQCPP-256:
--------------------------------

    Fix Version/s: 3.1

> Transaction has not been started exceptions on the broker with parallel transacted sessions
> -------------------------------------------------------------------------------------------
>
>                 Key: AMQCPP-256
>                 URL: https://issues.apache.org/activemq/browse/AMQCPP-256
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>    Affects Versions: 3.0
>         Environment: Ubuntu Jaunty 9.04
>            Reporter: Teemu Torma
>            Assignee: Timothy Bish
>            Priority: Critical
>             Fix For: 3.1
>
>         Attachments: mt-receive.cpp
>
>
> When using parallel transacted sessions and consumers to same queue each sharing the
same connection, the messages are delivered but the broker 5.2 gets exceptions
> javax.jms.JMSException: Transaction 'TX:de411476-d65d-fff7-1e84-be7c9abd80b5:6' has not
been started.
> and some messages are left on the broker even though they were delivered.
> The issue seems to be related to multi-threading, by protecting each receive/commit with
a lock the error does not happen.  I am sorry I don't have a test program ready, but it should
be easy to reproduce by creating multiple transacted session threads with prefetchSize=1 and
consuming messages, commiting after each message.  I have seen this happen both with consumers
and listeners.

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