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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17852) remove support for list bucketing "stored as directories" in 3.0
Date Mon, 25 Jun 2018 16:14:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16522472#comment-16522472
] 

Hive QA commented on HIVE-17852:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12929022/HIVE-17852.12.patch

{color:green}SUCCESS:{color} +1 due to 34 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 14600 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[strict_managed_tables_sysdb]
(batchId=168)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/12099/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/12099/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-12099/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
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: 12929022 - PreCommit-HIVE-Build

> remove support for list bucketing "stored as directories" in 3.0
> ----------------------------------------------------------------
>
>                 Key: HIVE-17852
>                 URL: https://issues.apache.org/jira/browse/HIVE-17852
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Laszlo Bodor
>            Priority: Major
>             Fix For: 4.0.0
>
>         Attachments: HIVE-17852.01.patch, HIVE-17852.02.patch, HIVE-17852.03.patch, HIVE-17852.04.patch,
HIVE-17852.05.patch, HIVE-17852.06.patch, HIVE-17852.07.patch, HIVE-17852.08.patch, HIVE-17852.09.patch,
HIVE-17852.10.patch, HIVE-17852.11.patch, HIVE-17852.12.patch
>
>
> From the email thread:
> 1) LB, when stored as directories, adds a lot of low-level complexity to Hive tables
that has to be accounted for in many places in the code where the files are written or modified
- from FSOP to ACID/replication/export.
> 2) While working on some FSOP code I noticed that some of that logic is broken - e.g.
the duplicate file removal from tasks, a pretty fundamental correctness feature in Hive, may
be broken. LB also doesn’t appear to be compatible with e.g. regular bucketing.
> 3) The feature hasn’t seen development activity in a while; it also doesn’t appear
to be used a lot.
> Keeping with the theme of cleaning up “legacy” code for 3.0, I was proposing we remove
it.
> (2) also suggested that, if needed, it might be easier to implement similar functionality
by adding some flexibility to partitions (which LB directories look like anyway); that would
also keep the logic on a higher level of abstraction (split generation, partition pruning)
as opposed to many low-level places like FSOP, etc.



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