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https://issues.apache.org/jira/browse/CASSANDRA-13142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15832084#comment-15832084
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Kurt Greaves commented on CASSANDRA-13142:
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I've already done all the necessary reconnaissance so will write a patch soon,
I think best solution would be to provide a more modular way to specify
compaction types to "ignore" in
{{CompactionManager.interruptCompactionsForCFs()}}.
> Upgradesstables cancels compactions unnecessarily
> -------------------------------------------------
>
> Key: CASSANDRA-13142
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13142
> Project: Cassandra
> Issue Type: Bug
> Reporter: Kurt Greaves
> Assignee: Kurt Greaves
> Priority: Minor
>
> Since at least 1.2 upgradesstables will cancel any compactions bar
> validations when run. This was originally determined as a non-issue in
> CASSANDRA-3430 however can be quite annoying (especially with STCS) as a
> compaction will output the new version anyway. Furthermore, as per
> CASSANDRA-12243 it also stops things like view builds and I assume secondary
> index builds as well which is not ideal.
> We should avoid cancelling compactions unnecessarily.
> I'd class this as a very minor bug, should at least be fixed from 3.0, but up
> for debate. The main negative effect is annoying operators (which I tend to
> rate pretty highly), but other than that there are no serious consequences.
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