Expring columns can expire between the two phase of LazilyCompactedRow.
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                 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


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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