[jira] [Commented] (CASSANDRA-17931) Augment our disk space checks for compaction

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

    [ https://issues.apache.org/jira/browse/CASSANDRA-17931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17610200#comment-17610200 ] 

Josh McKenzie commented on CASSANDRA-17931:
-------------------------------------------

||Item|Link||
|PR|[link|https://github.com/apache/cassandra/pull/1888]|
|JDK8 CI|[link|https://app.circleci.com/pipelines/github/josh-mckenzie/cassandra/307/workflows/79e7bec4-f50c-4d1e-b173-ef024994a92e]|
|JDK11 CI|[link|https://app.circleci.com/pipelines/github/josh-mckenzie/cassandra/307/workflows/a5744fa0-b838-445e-8ee4-e743fe8c212e]|

> Augment our disk space checks for 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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