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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6105) LongWritable.compareTo needs shimming
Date Fri, 03 Jan 2014 04:37:50 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13861198#comment-13861198
] 

Hive QA commented on HIVE-6105:
-------------------------------



{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/12621031/HIVE-6105.1.patch.txt

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 4874 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_disable_merge_for_bucketing
{noformat}

Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/786/testReport
Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/786/console

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: 1 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12621031

> LongWritable.compareTo needs shimming
> -------------------------------------
>
>                 Key: HIVE-6105
>                 URL: https://issues.apache.org/jira/browse/HIVE-6105
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.12.0
>            Reporter: Gunther Hagleitner
>            Assignee: Navis
>         Attachments: HIVE-6105.1.patch.txt
>
>
> Compiled hive against hadoop-2. Running tests on hadoop 1 gives:
> Caused by: java.lang.NoSuchMethodError: org.apache.hadoop.io.LongWritable.compareTo(Lorg/apache/hadoop/io/LongWritable;)I
> 	at org.apache.hadoop.hive.ql.udf.UDAFPercentile$MyComparator.compare(UDAFPercentile.java:62)
> 	at org.apache.hadoop.hive.ql.udf.UDAFPercentile$MyComparator.compare(UDAFPercentile.java:58)
> 	at java.util.Arrays.mergeSort(Arrays.java:1270)
> 	at java.util.Arrays.sort(Arrays.java:1210)
> 	at java.util.Collections.sort(Collections.java:157)
> 	at org.apache.hadoop.hive.ql.udf.UDAFPercentile$PercentileLongEvaluator.terminate(UDAFPercentile.java:194)
> 	... 20 more
> I think the problem is that the compareTo function has changed from using Object to using
LongWritable as an argument. Seems this needs a shim. However, we should also make sure that
this shim doesn't hit performance too hard.



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