qpid-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5450) [Java Broker] shared message group race between acquiring new messages and acking delivered messages can lead to concurrent delivery
Date Tue, 07 Jan 2014 00:58:50 GMT

    [ https://issues.apache.org/jira/browse/QPID-5450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13863741#comment-13863741
] 

ASF subversion and git services commented on QPID-5450:
-------------------------------------------------------

Commit 1556096 from [~gemmellr] in branch 'qpid/trunk'
[ https://svn.apache.org/r1556096 ]

QPID-5450: have the group manager try to acquire the message at the time it is accepted into
the group, so that the associated shared-group state change occurs within the single synchronization
block

> [Java Broker] shared message group race between acquiring new messages and acking delivered
messages can lead to concurrent delivery
> ------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: QPID-5450
>                 URL: https://issues.apache.org/jira/browse/QPID-5450
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: 0.22, 0.24
>            Reporter: Robbie Gemmell
>            Assignee: Robbie Gemmell
>             Fix For: 0.27
>
>
> When using shared message groups, there is a synchronization issue leading to a race
between acquiring new messages that are being added to the group causing a state change within
the group, and acking of the last message in the group, which can lead to concurrent delivery
of messages for the group.



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org


Mime
View raw message