[jira] [Updated] (CASSANDRA-17931) Include estimated active compaction remaining write size when starting a new compaction

["Josh McKenzie (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-17931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh McKenzie updated CASSANDRA-17931:
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    Summary: Include estimated active compaction remaining write size when starting a new compaction  (was: Augment our disk space checks for compaction)

> Include estimated active compaction remaining write size when starting a new compaction
> ---------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-17931
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17931
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local/Compaction
>            Reporter: Josh McKenzie
>            Assignee: Josh McKenzie
>            Priority: Normal
>             Fix For: 4.x
>
>
> There are a few things we can augment in how we handle compactions locally to improve upon the very simple "keep X Mebibytes free on disk" we currently have:
>  # Allow specification of free space available in percent rather than raw size
>  # Do this on a per-disk basis based on what's going on with compactions
>  # Include an estimate of the disk space of active compactions in flight when we do the above calculation check so we don't blow past our limits due to concurrent runs
>  



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