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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5531) [C++ broker] Set timeout for every DTX transaction
Date Mon, 10 Feb 2014 11:03:19 GMT

    [ https://issues.apache.org/jira/browse/QPID-5531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13896394#comment-13896394

ASF subversion and git services commented on QPID-5531:

Commit 1566579 from [~godfrer] in branch 'qpid/trunk'
[ https://svn.apache.org/r1566579 ]

QPID-5531 : Adding an exclude to the Java Python test ignore list for the test which was changed
without the feature also being changed in the Java Broker

> [C++ broker] Set timeout for every DTX transaction
> --------------------------------------------------
>                 Key: QPID-5531
>                 URL: https://issues.apache.org/jira/browse/QPID-5531
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: 0.24
>            Reporter: Pavel Moravec
>            Assignee: Pavel Moravec
>            Priority: Minor
>              Labels: patch
>             Fix For: 0.27
>         Attachments: QPID-5531.patch, qpid-txtest_modified.patch
> Description of problem:
> If an external Transaction Manager (TM) prepares a DTX transaction but forgets, due to
any reason, to commit or abort it, tpl journal has an orphaned enqueue record forever (that
in legacystore causes enqueue capacity threshold exception after a while, preventing _any_
transaction to commit/abort).
> To prevent such orphaned XID entries in tpl, every incoming DTX transaction should have
a default timeout set (while dtx.set-timeout AMQP 0-10 primitive changes it).
> The timeout should be broker-wide parameter configurable via --dtx-default-timeout option.
> Version-Release number of selected component (if applicable):
> any (incl upstream 0.26)
> How reproducible:
> 100%
> Steps to Reproduce:
> 1. Mimic an external TM that prepares a DTX but never commits or aborts it - use e.g.
_modified_ qpid-txtest (patch attached):
> qpid-txtest --queues=1 --total-messages=1 --dtx=1 --dtx-commit=no
> 2. /usr/libexec/qpid/store_chk /var/lib/qpidd/rhm/tpl -b tpl
> Actual results:
> tpl journal keeps the unfinished transaction forever
> Expected results:
> sleeping for dtx-default-timeout, the transaction should be gone

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