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Date: Fri, 14 Nov 2014 11:00:35 +0000 (UTC)
From: "Hive QA (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HIVE-5631) Index creation on a skew table fails
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    [ https://issues.apache.org/jira/browse/HIVE-5631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14212116#comment-14212116 ] 

Hive QA commented on HIVE-5631:
-------------------------------


{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/12681441/HIVE-5631.4.patch.txt

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 6688 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_authorization_index
org.apache.hive.hcatalog.streaming.TestStreaming.testRemainingTransactions
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1785/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/1785/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-1785/

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: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12681441 - PreCommit-HIVE-TRUNK-Build

> Index creation on a skew table fails
> ------------------------------------
>
>                 Key: HIVE-5631
>                 URL: https://issues.apache.org/jira/browse/HIVE-5631
>             Project: Hive
>          Issue Type: Bug
>          Components: Indexing
>    Affects Versions: 0.12.0, 0.13.0, 0.14.0
>            Reporter: Venki Korukanti
>            Assignee: Venki Korukanti
>         Attachments: HIVE-5631.1.patch.txt, HIVE-5631.2.patch.txt, HIVE-5631.3.patch.txt, HIVE-5631.4.patch.txt
>
>
> REPRO STEPS:
> create database skewtest;
> use skewtest;
> create table skew (id bigint, acct string) skewed by (acct) on ('CC','CH');
> create index skew_indx on table skew (id) as 'org.apache.hadoop.hive.ql.index.compact.CompactIndexHandler' WITH DEFERRED REBUILD;
> Last DDL fails with following error.
> FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. InvalidObjectException(message:Invalid skew column [acct])
> When creating a table, Hive has sanity tests to make sure the columns have proper names and the skewed columns are subset of the table columns. Here we fail because index table has skewed column info. Index tables's skewed columns include {acct} and the columns are {id, _bucketname, _offsets}. As the skewed column {acct} is not part of the table columns Hive throws the exception.
> The reason why Index table got skewed column info even though its definition has no such info is: When creating the index table a deep copy of the base table's StorageDescriptor (SD) (in this case 'skew') is made. And in that copied SD, index specific parameters are set and unrelated parameters are reset. Here skewed column info is not reset (there are few other params that are not reset). That's why the index table contains the skewed column info.
> Fix: Instead of deep copying the base table StorageDescriptor, create a new one from gathered info. This way it avoids the index table to inherit unnecessary properties in SD from base table.


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