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Xuefu Zhang commented on HIVE-9258: ----------------------------------- Makes sense. Thanks for the explanation. > Explain query should share the same Spark application with regular queries > [Spark Branch] > ----------------------------------------------------------------------------------------- > > Key: HIVE-9258 > URL: https://issues.apache.org/jira/browse/HIVE-9258 > Project: Hive > Issue Type: Sub-task > Components: Spark > Reporter: Xuefu Zhang > Assignee: Jimmy Xiang > > Currently for Hive on Spark, query plan includes the number of reducers, > which is determined partly by the Spark cluster. Thus, explain query will > need to launch a Spark application (Spark remote context), which should be > shared with regular queries so that we don't launch additional Spark remote > context. -- This message was sent by Atlassian JIRA (v6.3.4#6332)