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https://issues.apache.org/jira/browse/CASSANDRA-16967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jyothsna Konisa updated CASSANDRA-16967:
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Authors: Dinesh Joshi, Jyothsna Konisa, Yifan Cai (was: Jyothsna Konisa)
> Probabilistic diff to sample partitions for diff testing based on probability.
> ------------------------------------------------------------------------------
>
> Key: CASSANDRA-16967
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16967
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Jyothsna Konisa
> Assignee: Jyothsna Konisa
> Priority: Normal
>
> Probabilistic diff allows us to sample partitions randomly while running diff
> tests. It takes new config parameter `partition_sampling_probability ` that
> ranges between (0-1) and samples partitions based on this probability. The
> default value for this config property is 1 which means that all the
> partitions will be diffed. The partitions that are selected are also based on
> the JobId, for a given sampling probability and JobId we always diff on same
> partitions.This helps in reproducing any issues that one might run into.
> Probabilistic diff allows us to run diff jobs on large clusters by sampling
> some partitions.
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