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https://issues.apache.org/jira/browse/CASSANDRA-10862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15221799#comment-15221799
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Sylvain Lebresne commented on CASSANDRA-10862:
----------------------------------------------

That sounds like an easy enough idea to me. Any opinions [~krummas], 
[~pauloricardomg] or [~yukim]?

> LCS repair: compact tables before making available in L0
> --------------------------------------------------------
>
>                 Key: CASSANDRA-10862
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10862
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Compaction, Streaming and Messaging
>            Reporter: Jeff Ferland
>
> When doing repair on a system with lots of mismatched ranges, the number of 
> tables in L0 goes up dramatically, as correspondingly goes the number of 
> tables referenced for a query. Latency increases dramatically in tandem.
> Eventually all the copied tables are compacted down in L0, then copied into 
> L1 (which may be a very large copy), finally reducing the number of SSTables 
> per query into the manageable range.
> It seems to me that the cleanest answer is to compact after streaming, then 
> mark tables available rather than marking available when the file itself is 
> complete.



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