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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2759) Scrub could lose increments and replicate that loss
Date Fri, 10 Jun 2011 20:12:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13047422#comment-13047422
] 

Jonathan Ellis commented on CASSANDRA-2759:
-------------------------------------------

bq. make scrub not skip rows on counter column families

+1

bq. CASSANDRA-2614 would change that to 'never ever skipping row'

Only if you actually did have a counter in the column_metadata, right?

> Scrub could lose increments and replicate that loss
> ---------------------------------------------------
>
>                 Key: CASSANDRA-2759
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2759
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.8.0
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>              Labels: counters
>             Fix For: 0.8.1
>
>         Attachments: 0001-Renew-nodeId-in-scrub-when-skipping-rows.patch
>
>
> If scrub cannot 'repair' a corrupted row, it will skip it. On node A, if the row contains
some sub-count for A id, those will be lost forever since A is the source of truth on it's
current id. We should thus renew node A id when that happens to avoid this (not unlike we
do in cleanup).

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