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https://issues.apache.org/jira/browse/KUDU-2057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Henke updated KUDU-2057:
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Component/s: compaction
> Dynamic budget for DRS compactions
> ----------------------------------
>
> Key: KUDU-2057
> URL: https://issues.apache.org/jira/browse/KUDU-2057
> Project: Kudu
> Issue Type: Improvement
> Components: compaction, tablet
> Reporter: Jean-Daniel Cryans
> Priority: Major
>
> Clusters have busier and quieter periods, so by default Kudu leverages the
> latter to schedule compactions because during the former it's mostly flushing.
> A further improvement would be to somehow recognize that a tserver is mostly
> scheduling DRS compactions and to start giving them bigger and bigger
> budgets. Compacting more DRSes at a time lowers the overall write
> amplification, by running the risk of compacting for too long and not be able
> to schedule important flushes. We could lower the risk by re-adding an
> emergency flush thread, and/or making it possible to cancel tasks.
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