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Review request for hive, Jimmy Xiang and Szehon Ho. Bugs: HIVE-8921 https://issues.apache.org/jira/browse/HIVE-8921 Repository: hive-git Description ------- Running this test, sometimes it produce the correct result, sometimes it just produce NULL. Looks like there's some concurrency issue. Diffs ----- ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/SparkMapJoinResolver.java 96481f1 ql/src/java/org/apache/hadoop/hive/ql/plan/MapredLocalWork.java 6fbdcd2 Diff: https://reviews.apache.org/r/28299/diff/ Testing ------- Thanks, Chao Sun