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Rui Li commented on HIVE-15104: ------------------------------- Hi [~xuefuz], with HIVE-17114 and HIVE-17321 the benchmark results become more stable and the improvement is a little higher. Here's the latest [100GB TPC-DS result|https://docs.google.com/spreadsheets/d/1ba-AbUpJOHNb0_5PZyWQHzrH4wfRljMxQP9vA9JACHg/edit?usp=sharing]. Would you mind share your benchmark tool so that I can look into the perf degradation? Thanks. > Hive on Spark generate more shuffle data than hive on mr > -------------------------------------------------------- > > Key: HIVE-15104 > URL: https://issues.apache.org/jira/browse/HIVE-15104 > Project: Hive > Issue Type: Bug > Components: Spark > Affects Versions: 1.2.1 > Reporter: wangwenli > Assignee: Rui Li > Attachments: HIVE-15104.1.patch, HIVE-15104.2.patch, > HIVE-15104.3.patch, HIVE-15104.4.patch, TPC-H 100G.xlsx > > > the same sql, running on spark and mr engine, will generate different size > of shuffle data. > i think it is because of hive on mr just serialize part of HiveKey, but hive > on spark which using kryo will serialize full of Hivekey object. > what is your opionion? -- This message was sent by Atlassian JIRA (v6.4.14#64029)