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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8639) Convert SMBJoin to MapJoin [Spark Branch]
Date Thu, 18 Dec 2014 04:08:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251142#comment-14251142
] 

Hive QA commented on HIVE-8639:
-------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12687919/HIVE-8639.4-spark.patch

{color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 7236 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_sample_islocalmode_hook
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_optimize_nullscan
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_vector_cast_constant
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_authorization_admin_almighty1
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver_join32_lessSize
org.apache.hive.hcatalog.streaming.TestStreaming.testEndpointConnection
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-SPARK-Build/570/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-SPARK-Build/570/console
Test logs: http://ec2-50-18-27-0.us-west-1.compute.amazonaws.com/logs/PreCommit-HIVE-SPARK-Build-570/

Messages:
{noformat}
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: 6 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12687919 - PreCommit-HIVE-SPARK-Build

> Convert SMBJoin to MapJoin [Spark Branch]
> -----------------------------------------
>
>                 Key: HIVE-8639
>                 URL: https://issues.apache.org/jira/browse/HIVE-8639
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>    Affects Versions: spark-branch
>            Reporter: Szehon Ho
>            Assignee: Szehon Ho
>         Attachments: HIVE-8639.1-spark.patch, HIVE-8639.2-spark.patch, HIVE-8639.3-spark.patch,
HIVE-8639.3-spark.patch, HIVE-8639.4-spark.patch
>
>
> HIVE-8202 supports auto-conversion of SMB Join.  However, if the tables are partitioned,
there could be a slow down as each mapper would need to get a very small chunk of a partition
which has a single key. Thus, in some scenarios it's beneficial to convert SMB join to map
join.
> The task is to research and support the conversion from SMB join to map join for Spark
execution engine.  See the equivalent of MapReduce in SortMergeJoinResolver.



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