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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (CASSANDRA-1717) Cassandra cannot detect corrupt-but-readable column data
Date Tue, 21 Jun 2011 18:55:56 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis reassigned CASSANDRA-1717:
-----------------------------------------

    Assignee: Pavel Yaskevich

Should probably do this (either column-level or block-level) at the same time as CASSANDRA-47.

> Cassandra cannot detect corrupt-but-readable column data
> --------------------------------------------------------
>
>                 Key: CASSANDRA-1717
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1717
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>             Fix For: 1.0
>
>         Attachments: checksums.txt
>
>
> Most corruptions of on-disk data due to bitrot render the column (or row) unreadable,
so the data can be replaced by read repair or anti-entropy.  But if the corruption keeps column
data readable we do not detect it, and if it corrupts to a higher timestamp value can even
resist being overwritten by newer values.

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