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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2921) Replication: Add a network service that connects the master and slave Derby instances
Date Fri, 17 Aug 2007 14:14:30 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12520567
] 

Rick Hillegas commented on DERBY-2921:
--------------------------------------

Thanks, Narayanan. I think that this solution is adequate for a first rev. The version handshake
will let replication fail gracefully as necessary at upgrade time. Just to be clear, I think
that the version id in question is the version of the code (the Derby jar files), not the
version level of the data. If you have to get your hands on the version level of the data,
then you may have to tackle some tricky soft-upgrade issues.

> Replication: Add a network service that connects the master and slave Derby instances
> -------------------------------------------------------------------------------------
>
>                 Key: DERBY-2921
>                 URL: https://issues.apache.org/jira/browse/DERBY-2921
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Services
>    Affects Versions: 10.4.0.0
>            Reporter: Jørgen Løland
>            Assignee: V.Narayanan
>         Attachments: Replication_Network_v1.diff, Replication_Network_v1.stat
>
>
> A network connection is required between the master and slave Derby instances of a replicated
database. The connection will be used to send many kinds of messages, including:
> * log records
> * the database (when replication is started)
> * master -> slave commands (like "stop replication")

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