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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-4327) HA support for TX transactions.
Date Thu, 01 Aug 2013 20:27:50 GMT

    [ https://issues.apache.org/jira/browse/QPID-4327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13726839#comment-13726839

ASF subversion and git services commented on QPID-4327:

Commit 1509423 from [~aconway] in branch 'qpid/trunk'
[ https://svn.apache.org/r1509423 ]

QPID-4327: HA TX transactions: basic replication.

On primary a PrimaryTxObserver observes a transaction's TxBuffer and generates
transaction events on a tx-replication-queue. On the backup a TxReplicator
receives the events and constructs a TxBuffer equivalent to the one in the

- Primary does not wait for backups to prepare() before committing.
- All connected backups are assumed to be in the transaction, there are race
  conditions around brokers joining/leavinv where this assumption is invalid.
- Need more tests.
> HA support for TX transactions.
> -------------------------------
>                 Key: QPID-4327
>                 URL: https://issues.apache.org/jira/browse/QPID-4327
>             Project: Qpid
>          Issue Type: New Feature
>          Components: C++ Clustering
>    Affects Versions: 0.18
>            Reporter: Alan Conway
>            Assignee: Alan Conway
> Add support for TX transactions in a HA cluster.
> Messages and accepts in a transaction must be executed atomically on backup brokers.

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