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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13518) Hive on Tez: Shuffle joins do not choose the right 'big' table.
Date Tue, 31 May 2016 11:25:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15307588#comment-15307588
] 

Hive QA commented on HIVE-13518:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12806300/HIVE-13518.3.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 14 failed/errored test(s), 10172 tests executed
*Failed tests:*
{noformat}
TestHWISessionManager - did not produce a TEST-*.xml file
TestJdbcWithMiniHA - did not produce a TEST-*.xml file
TestJdbcWithMiniMr - did not produce a TEST-*.xml file
TestMiniTezCliDriver-insert_values_non_partitioned.q-schema_evol_orc_nonvec_mapwork_part.q-union5.q-and-12-more
- did not produce a TEST-*.xml file
TestOperationLoggingAPIWithTez - did not produce a TEST-*.xml file
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_ivyDownload
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_list_bucket_dml_13
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_stats_list_bucket
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver_constprog_partitioner
org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver_index_bitmap3
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_explainuser_3
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_vector_complex_all
org.apache.hadoop.hive.llap.tez.TestConverters.testFragmentSpecToTaskSpec
org.apache.hadoop.hive.ql.lockmgr.TestDbTxnManager2.testLocksInSubquery
{noformat}

Test results: http://ec2-54-177-240-2.us-west-1.compute.amazonaws.com/job/PreCommit-HIVE-MASTER-Build/467/testReport
Console output: http://ec2-54-177-240-2.us-west-1.compute.amazonaws.com/job/PreCommit-HIVE-MASTER-Build/467/console
Test logs: http://ec2-50-18-27-0.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-MASTER-Build-467/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 14 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12806300 - PreCommit-HIVE-MASTER-Build

> Hive on Tez: Shuffle joins do not choose the right 'big' table.
> ---------------------------------------------------------------
>
>                 Key: HIVE-13518
>                 URL: https://issues.apache.org/jira/browse/HIVE-13518
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>         Attachments: HIVE-13518.1.patch, HIVE-13518.2.patch, HIVE-13518.3.patch
>
>
> Currently the big table is always assumed to be at position 0 but this isn't efficient
for some queries as the big table at position 1 could have a lot more keys/skew. We already
have a mechanism of choosing the big table that can be leveraged to make the right choice.



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