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https://issues.apache.org/jira/browse/CASSANDRA-6216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13850982#comment-13850982
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Jonathan Ellis commented on CASSANDRA-6216:
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That is, we should prefer smallest write amplification where
wa = (overlapped size-minus-tombstones + candidate size-minus-tombstones) /
candidate size-minus-tombstones
> Level Compaction should persist last compacted key per level
> ------------------------------------------------------------
>
> Key: CASSANDRA-6216
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6216
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: sankalp kohli
> Priority: Minor
> Attachments: JIRA-6216.diff
>
>
> Level compaction does not persist the last compacted key per level. This is
> important for higher levels.
> The sstables with higher token and in higher levels wont get a chance to
> compact as the last compacted key will get reset after a restart.
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