ImTangYun opened a new pull request #710: fix problem of mr data skew while druid handler indexing data URL: https://github.com/apache/hive/pull/710 modify partitioning key from basing on floor(1/rand) % targetShardsPerGranularity to on floor(targetShardsPerGranularity * rand) % targetShardsPerGranularity ,which is Linear transformation
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