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https://issues.apache.org/jira/browse/CASSANDRA-12366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15413836#comment-15413836
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T Jake Luciani commented on CASSANDRA-12366:
--------------------------------------------

I pushed another change to address the problem and the dtests are now clean.  
Will wait for your confirmation I'm ok to commit.

> Fix compaction throttle
> -----------------------
>
>                 Key: CASSANDRA-12366
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12366
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: T Jake Luciani
>            Assignee: T Jake Luciani
>             Fix For: 3.x
>
>
> Compaction throttling is broken in the following ways:
>   * It throttles bytes read after being decompressed
>   * Compaction creates multiple scanners which share the rate limiter causing 
> too much throttling
>   * It bears no resemblance to the reported compaction time remaining 
> calculation (Bytes of source sstables processed since start of compaction)
> To fix this we need to simplify the throttling to be only at the 
> CompactionIterator level.



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