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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1970) Message version resolution
Date Mon, 31 Jan 2011 17:01:29 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12988795#comment-12988795
] 

Hudson commented on CASSANDRA-1970:
-----------------------------------

Integrated in Cassandra-0.7 #231 (See [https://hudson.apache.org/hudson/job/Cassandra-0.7/231/])
    ignore messages from the future. keep track of nodes in gossip regardless. patch by gdusbabek,
reviewed by jbellis. CASSANDRA-1970


> 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: 0.7.2
>
>         Attachments: 1970.txt, v3-0001-ignore-messages-from-newer-versions-keep-track-of-node.txt
>
>
> 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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