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https://issues.apache.org/jira/browse/CASSANDRA-10276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14977509#comment-14977509
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Jeff Jirsa commented on CASSANDRA-10276:
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I haven't convinced myself of the 'best' way to handle the case where you have
more than min_threshold files, but no stcs compaction candidates - in TWCS, I
compact them in older windows, justifying that decision with the rationale that
it should be fairly rare, though I think it's also reasonable to say that a few
sstables per window is fine, and it's better to save the write amplification.
Given that I can make arguments on either side, I'm fine with your choice.
[~krummas] - latest patch looks reasonable to me. +1
> With DTCS, do STCS in windows if more than max_threshold sstables
> -----------------------------------------------------------------
>
> Key: CASSANDRA-10276
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10276
> Project: Cassandra
> Issue Type: Sub-task
> Components: Core
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Fix For: 3.x, 2.1.x, 2.2.x
>
>
> To avoid constant recompaction of files in big ( > max threshold) DTCS
> windows, we should do STCS of those files.
> Patch here: https://github.com/krummas/cassandra/commits/marcuse/dtcs_stcs
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