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https://issues.apache.org/jira/browse/CASSANDRA-4180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-4180:
--------------------------------------

    Reviewer: slebresne
    Assignee: Yuki Morishita  (was: Sylvain Lebresne)
      Labels: compaction  (was: )
    
> Remove 2-phase compaction
> -------------------------
>
>                 Key: CASSANDRA-4180
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4180
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Sylvain Lebresne
>            Assignee: Yuki Morishita
>              Labels: compaction
>             Fix For: 1.2
>
>
> LazilyCompactedRow reads all data twice to compact a row which is obviously 
> inefficient. The main reason we do that is to compute the row header. 
> However, CASSANDRA-2319 have removed the main part of that row header. What 
> remains is the size in bytes and the number of columns, but it should be 
> relatively simple to remove those, which would then remove the need for the 
> two-phase compaction.

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