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https://issues.apache.org/jira/browse/CASSANDRA-11833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei Deng updated CASSANDRA-11833:
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Labels: lcs (was: )
> Bulk load mode for LCS
> ----------------------
>
> Key: CASSANDRA-11833
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11833
> Project: Cassandra
> Issue Type: Improvement
> Components: Compaction
> Reporter: Jonathan Ellis
> Labels: lcs
>
> We can currently avoid LCS write amplification on bulk load as follows:
> 1. Disable automatic compaction
> 2. Load all the data
> 3. Force major compaction
> 4. Re-enable automatic compaction
> It would be nice to automate this. E.g. if we detect that L0 contains as
> much data as the rest of our arena, skip bubbling sstables up and just major
> compact automatically. In a bulk load situation, this would result in
> exponentially increasing major compaction sizes -- not as ideal as the manual
> form with just a single one, but much better than our current behavior which
> is not a good experience for users.
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