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ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java (line 1465) <https://reviews.apache.org/r/54042/#comment227087> You need to make sure task1 and task2 are both moving file or table. Right now, seems task1 can be file and task2 can be table. ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java (line 1539) <https://reviews.apache.org/r/54042/#comment227089> Seems again you need make sure both are MoveFile or MoveTable. - Aihua Xu On Nov. 23, 2016, 8:02 p.m., Sergio Pena wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/54042/ > ----------------------------------------------------------- > > (Updated Nov. 23, 2016, 8:02 p.m.) > > > Review request for hive. > > > Bugs: HIVE-15114 > https://issues.apache.org/jira/browse/HIVE-15114 > > > Repository: hive-git > > > Description > ------- > > This patch removes an extra MoveTask from the CONDITIONAL TASK added to the > query plan. It would be used only as a Blobstorage optimization. > In HDFS, this two tasks are just simple atomic renames, but on Blobstorage, a > rename is too expensive. > > > Diffs > ----- > > > itests/hive-blobstore/src/test/queries/clientpositive/conditional_task_optimization.q > PRE-CREATION > > itests/hive-blobstore/src/test/results/clientpositive/conditional_task_optimization.q.out > PRE-CREATION > itests/hive-blobstore/src/test/results/clientpositive/insert_into.q.out > 00ad136ae40a5ed2689ad8ed2f882bbcd238324d > ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMapRedUtils.java > 88d5afadd690c3dce276b72a37608d30ddeea271 > > ql/src/test/org/apache/hadoop/hive/ql/optimizer/TestGenMapRedUtilsCreateConditionalTask.java > PRE-CREATION > > Diff: https://reviews.apache.org/r/54042/diff/ > > > Testing > ------- > > # Testa added > mvn test -Dtest=TestBlobstoreCliDriver -Dqfile=conditional_task_optimization.q > > # All tests > mvn test -Dtest=TestBlobstoreCliDriver > mvn test -Dtest=TestBlobstoreNegativeCliDriver > > > Thanks, > > Sergio Pena > >