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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1970) Message version resolution
Date Tue, 11 Jan 2011 23:32:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12980433#action_12980433
] 

Jonathan Ellis commented on CASSANDRA-1970:
-------------------------------------------

Sure, but it still seems like it is easier to say "The first gossip message will always follow
this format" and keep that in legacy mode if necessary, than to add this extra layer.

> Message version resolution
> --------------------------
>
>                 Key: CASSANDRA-1970
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1970
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Gary Dusbabek
>            Assignee: Gary Dusbabek
>            Priority: Minor
>             Fix For: 0.8
>
>
> When a new new node (version N) contacts an old node (version N-1) for the first time,
the old node will not understand the message.  One resolution mechanism would be for the old
node to "bounce" the message back to the sender.  The sender would then respond by translating
the message to the appropriate version and resending it.
> For this to work, 0.7.1 will need to have the "bounce" feature.

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