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https://issues.apache.org/jira/browse/CASSANDRA-14935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16743744#comment-16743744
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Marcus Eriksson commented on CASSANDRA-14935:
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thanks for the review, pushed a new commit with the comments addressed
tests: https://circleci.com/workflow-run/4940b461-6a7f-423f-b61c-337c9f61a94d
> PendingAntiCompaction should be more judicious in the compactions it cancels
> ----------------------------------------------------------------------------
>
> Key: CASSANDRA-14935
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14935
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Priority: Major
> Fix For: 4.0
>
>
> PendingAntiCompaction currently cancels all ongoing compactions to be able to
> grab the sstables it requires - it should;
> * avoid stopping ongoing anticompactions - for example, if we have an sstable
> [0, 100] and are anticompacting it on [0, 50] - now if we start a new
> incremental repair on [51, 100] we will (try to) stop the first one. Instead
> we should fail the new incremental repair request.
> * avoid stopping unrelated regular compactions - we should only stop regular
> compactions for the sstables the new anticompaction needs
> This requires us to keep track of which sstables are being compacted by a
> given compaction id.
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