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https://issues.apache.org/jira/browse/CASSANDRA-3635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13170367#comment-13170367
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Jonathan Ellis commented on CASSANDRA-3635:
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Taking a step back, I'm not sure I see the benefit here. If we're okay with X
MB/s of i/o going on, doesn't that disrupt reads just as much whether that
comes from repair validation or "ordinary" compaction?
> Throttle validation separately from other compaction
> ----------------------------------------------------
>
> Key: CASSANDRA-3635
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3635
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Minor
> Labels: repair
> Fix For: 0.8.10, 1.0.7
>
> Attachments: 0001-separate-validation-throttling.patch
>
>
> Validation compaction is fairly ressource intensive. It is possible to
> throttle it with other compaction, but there is cases where you really want
> to throttle it rather aggressively but don't necessarily want to have minor
> compactions throttled that much. The goal is to (optionally) allow to set a
> separate throttling value for validation.
> PS: I'm not pretending this will solve every repair problem or anything.
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