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https://issues.apache.org/jira/browse/CASSANDRA-7980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-7980:
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Assignee: (was: Branimir Lambov)
> cassandra-stress should support partial clustering column generation
> --------------------------------------------------------------------
>
> Key: CASSANDRA-7980
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7980
> Project: Cassandra
> Issue Type: Improvement
> Components: Testing
> Reporter: Benedict
> Priority: Minor
>
> cassandra-stress generates its data randomly, in tiers, so that we can scroll
> through the partitions it generates without having to generate their
> entirety. The problem is that to support very large partitions (important for
> benchmarking certain cases, and acceptance testing) we have to have a large
> number of clustering columns - generally more than we would otherwise have,
> which changes the performance characteristics. We should effectively split
> each clustering column into a number of byte-ranges that become tiers for
> visitation. The only real complexity here is in obeying the size/count
> distribution range specified, which would be difficult for exponential
> distributions, however we could require the user specify the ranges, and
> distributions for each range, upfront. We could even treat them exactly like
> other column specifications, but as sub-specs within a given column in the
> yaml. Or, we could simply accept that we imperfectly follow the distribution
> in these situations.
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