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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4611) SMB joins fail based on bigtable selection policy.
Date Fri, 16 Aug 2013 04:31:49 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13741899#comment-13741899
] 

Hudson commented on HIVE-4611:
------------------------------

FAILURE: Integrated in Hive-trunk-hadoop2 #364 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/364/])
HIVE-4611 : SMB joins fail based on bigtable selection policy. (Vikram Dixit K via Ashutosh
Chauhan) (hashutosh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1514530)
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/ErrorMsg.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/AbstractSMBJoinProc.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/AvgPartitionSizeBasedBigTableSelectorForAutoSMJ.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/BigTableSelectorForAutoSMJ.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/LeftmostBigTableSelectorForAutoSMJ.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/MapJoinProcessor.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/TableSizeBasedBigTableSelectorForAutoSMJ.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/correlation/CorrelationOptimizer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/CommonJoinTaskDispatcher.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/SortMergeJoinTaskDispatcher.java
* /hive/trunk/ql/src/test/queries/clientnegative/auto_sortmerge_join_1.q
* /hive/trunk/ql/src/test/queries/clientpositive/auto_sortmerge_join_15.q
* /hive/trunk/ql/src/test/results/clientnegative/auto_sortmerge_join_1.q.out
* /hive/trunk/ql/src/test/results/clientnegative/smb_bucketmapjoin.q.out
* /hive/trunk/ql/src/test/results/clientpositive/auto_sortmerge_join_15.q.out

                
> SMB joins fail based on bigtable selection policy.
> --------------------------------------------------
>
>                 Key: HIVE-4611
>                 URL: https://issues.apache.org/jira/browse/HIVE-4611
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.11.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4611.2.patch, HIVE-4611.3.patch, HIVE-4611.4.patch, HIVE-4611.5.patch.txt,
HIVE-4611.6.patch.txt, HIVE-4611.patch
>
>
> The default setting for hive.auto.convert.sortmerge.join.bigtable.selection.policy will
choose the big table as the one with largest average partition size. However, this can result
in a query failing because this policy conflicts with the big table candidates chosen for
outer joins. This policy should just be a tie breaker and not have the ultimate say in the
choice of tables.

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