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https://issues.apache.org/jira/browse/ACCUMULO-4187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15246410#comment-15246410
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ASF GitHub Bot commented on ACCUMULO-4187:
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Github user joshelser commented on the pull request:
https://github.com/apache/accumulo/pull/90#issuecomment-211550045
> With Keith's help, I've added a small end-to-end IT on rate limiting of
major compactions.
Looks good. Great work guys! :+1:
> Rate limiting of major compactions
> ----------------------------------
>
> Key: ACCUMULO-4187
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4187
> Project: Accumulo
> Issue Type: Improvement
> Components: core, tserver
> Reporter: Shawn Walker
> Assignee: Shawn Walker
> Priority: Minor
> Fix For: 1.8.0
>
>
> In discussing [ACCUMULO-4166] with Keith Turner, we decided that the
> underlying issue is that major compactions can overwhelm a tablet server,
> rendering it nearly unresponsive.
> To address this, we should take a cue from Apache Cassandra and restrict how
> quickly we perform major compactions. Rate limiting reads and writes
> involved in major compactions will directly affect the IO load caused by
> major compactions, and should also indirectly affect the CPU load.
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