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https://issues.apache.org/jira/browse/CASSANDRA-14082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16272656#comment-16272656
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Paulo Motta commented on CASSANDRA-14082:
-----------------------------------------
Currently the scrubber and relocate sstables were relying on the compaction
strategy index, so this patches change these operation to use a
{{DiskBoundaries}} object instead and make {{CSM.getCompactionStrategyIndex}}
private.
* [3.11 patch|https://github.com/pauloricardomg/cassandra/tree/3.11-14082]
Since this depends on CASSANDRA-13948, I will wait until that is committed
before setting this as PA.
> Do not expose compaction strategy index publicly
> ------------------------------------------------
>
> Key: CASSANDRA-14082
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14082
> Project: Cassandra
> Issue Type: Bug
> Reporter: Paulo Motta
> Assignee: Paulo Motta
>
> Before CASSANDRA-13215 we used the compaction strategy index to decide which
> disk to place a given sstable, but now we can get this directly from the disk
> boundary manager and keep the compaction strategy index internal only.
> This will ensure external consumers will use a consistent {{DiskBoundaries}}
> object to perform operations on multiple disks, rather than risking getting
> inconsistent indexes if the compaction strategy indexes change between
> successive calls to {{CSM.getCompactionStrategyIndex}}.
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