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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-520) Implement Range Repairs
Date Sat, 21 Nov 2009 09:06:40 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stu Hood updated CASSANDRA-520:
-------------------------------

    Attachment: 520-bulk-range-repair.diff

Here's an implementation of the efficient bulk range repair (thanks to jbellis' cleanup of
the Streaming API, the actual transfer only takes 10 lines!) but it depends on #193.

Once we have one of these repair methods merged, I can work on calculation of percent difference
between two trees so that we can use different methods based on thresholds.

> Implement Range Repairs
> -----------------------
>
>                 Key: CASSANDRA-520
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-520
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 0.5
>
>         Attachments: 520-bulk-range-repair.diff, 520-tokens-for-range-command.diff
>
>
> After CASSANDRA-193, the TreeRequest/Response conversation will have generated a full
list of Ranges that disagree between nodes. We need an operation that can efficiently batch
repair the ranges, similar to what happens during read repair for a single key.

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