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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-2349) Expring columns can expire between the two phase of LazilyCompactedRow.
Date Thu, 17 Mar 2011 15:08:29 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13007945#comment-13007945
] 

Sylvain Lebresne commented on CASSANDRA-2349:
---------------------------------------------

Actually, this won't work because we cannot anticipate the index size.

> Expring columns can expire between the two phase of LazilyCompactedRow.
> -----------------------------------------------------------------------
>
>                 Key: CASSANDRA-2349
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2349
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7.0
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>            Priority: Critical
>             Fix For: 0.7.5
>
>   Original Estimate: 8h
>  Remaining Estimate: 8h
>
> LazilyCompactedRow reads the columns to compact twice. First to create the index, bloom
filter and calculate the data size, and then another phase to actually write the columns.
But a column can expire between those two phase, which will result in a bad data size in the
sstable (and a possibly corrupted row index).

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