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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-580) vector clock support
Date Wed, 02 Dec 2009 05:35:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784639#action_12784639
] 

Jonathan Ellis commented on CASSANDRA-580:
------------------------------------------

making it a byte[] context makes sense.

replacing the existing timestamps with that does not, since they are client-provided by design
which is the opposite of the VC context.

> vector clock support
> --------------------
>
>                 Key: CASSANDRA-580
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-580
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>         Environment: N/A
>            Reporter: Kelvin Kakugawa
>            Assignee: Kelvin Kakugawa
>         Attachments: 580-interface-1-add-vector-clock.diff, 580-interface-2-add-vector-clock.diff,
580-thrift-v3.patch
>
>   Original Estimate: 672h
>  Remaining Estimate: 672h
>
> Allow a ColumnFamily to be versioned via vector clocks, instead of long timestamps. 
Purpose: enable incr/decr; flexible conflict resolution.

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