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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8707) Fix ordering differences due to Java 8 HashMap function
Date Sun, 23 Nov 2014 05:14:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14222313#comment-14222313
] 

Hive QA commented on HIVE-8707:
-------------------------------



{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/12682900/HIVE-8707.3.patch

{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 6651 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_insert_acid_dynamic_partition
org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_optimize_nullscan
org.apache.hive.hcatalog.streaming.TestStreaming.testTransactionBatchCommit_Json
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1872/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1872/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-1872/

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: 3 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12682900 - PreCommit-HIVE-TRUNK-Build

> Fix ordering differences due to Java 8 HashMap function
> -------------------------------------------------------
>
>                 Key: HIVE-8707
>                 URL: https://issues.apache.org/jira/browse/HIVE-8707
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Mohit Sabharwal
>            Assignee: Mohit Sabharwal
>         Attachments: HIVE-8707.1.patch, HIVE-8707.2.patch, HIVE-8707.3.patch, HIVE-8707.patch
>
>
> Java 8 uses a different hash function for HashMap, which is leading to iteration order
differences in several cases. (See [Java8|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/8-b132/java/util/HashMap.java?av=f#336]
vs [Java7|http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7-b147/java/util/HashMap.java#HashMap.hash%28int%29])
> For example:
>   - In Explain output: Stages are numbered differently  
>   - In PostExecutePrinter hook, table order is different in lineage.



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