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https://issues.apache.org/jira/browse/QPID-4328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15075231#comment-15075231
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Alan Conway commented on QPID-4328:
-----------------------------------

Qpid had an older active/active cluster module based on virtual synchrony which 
has been discontinued due to performance and maintenance issues, QPID-3384  
refers to that module.
The current active/passive HA module does not yet have DTX support. 

The old module was called "cluster" the new module is called "ha". Bugs for 
both are being filed under the same JIRA component which, now that you mention 
it, is confusing.


> HA support for DTX transactions
> -------------------------------
>
>                 Key: QPID-4328
>                 URL: https://issues.apache.org/jira/browse/QPID-4328
>             Project: Qpid
>          Issue Type: New Feature
>          Components: C++ Clustering
>    Affects Versions: 0.18
>            Reporter: Alan Conway
>
> Add support for DTX transactions in a HA cluster.
> Messages and accepts in a transaction must be executed atomically on backup 
> brokers.
> Handle XA recovery on restart of cluster.



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