You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@qpid.apache.org by "Alan Conway (JIRA)" <ji...@apache.org> on 2012/11/07 22:10:12 UTC
[jira] [Created] (QPID-4428) HA add UUID tag to avoid using an out
of date queue.
Alan Conway created QPID-4428:
---------------------------------
Summary: HA add UUID tag to avoid using an out of date queue.
Key: QPID-4428
URL: https://issues.apache.org/jira/browse/QPID-4428
Project: Qpid
Issue Type: Bug
Components: C++ Clustering
Affects Versions: 0.19
Reporter: Alan Conway
Assignee: Alan Conway
Here's the scenario: we have a cluster with primary A and backups B and C. There is a queue Q that is replicated to both. Now A dies and B takes over as primary. Before C has connected to B, a client destroys Q and creates a new queue with the same name, Q. When C does connect it sees a queue named Q and mistakenly assumes it is the same queue as it's own Q - so it has an incorrect replica of Q. The same scenario applies to exchanges.
The fix is to tag queues and exchanges with a UUID, so backups can identify that the queue has changed even if the name is the same.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org
[jira] [Resolved] (QPID-4428) HA add UUID tag to avoid using an out
of date queue.
Posted by "Alan Conway (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/QPID-4428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Conway resolved QPID-4428.
-------------------------------
Resolution: Fixed
Fix Version/s: 0.19
Fixed on trunk:
r1409241 | QPID-4428: HA add UUID tag to avoid using an out of date queue/exchange.
> HA add UUID tag to avoid using an out of date queue.
> ----------------------------------------------------
>
> Key: QPID-4428
> URL: https://issues.apache.org/jira/browse/QPID-4428
> Project: Qpid
> Issue Type: Bug
> Components: C++ Clustering
> Affects Versions: 0.19
> Reporter: Alan Conway
> Assignee: Alan Conway
> Fix For: 0.19
>
>
> Here's the scenario: we have a cluster with primary A and backups B and C. There is a queue Q that is replicated to both. Now A dies and B takes over as primary. Before C has connected to B, a client destroys Q and creates a new queue with the same name, Q. When C does connect it sees a queue named Q and mistakenly assumes it is the same queue as it's own Q - so it has an incorrect replica of Q. The same scenario applies to exchanges.
> The fix is to tag queues and exchanges with a UUID, so backups can identify that the queue has changed even if the name is the same.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org