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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-22538) RS deduplication does not always enforce hive.optimize.reducededuplication.min.reducer
Date Tue, 28 Jan 2020 17:37:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-22538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17025318#comment-17025318
] 

Hive QA commented on HIVE-22538:
--------------------------------

| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  0s{color} |
{color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  1m 38s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  8m  4s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 48s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m  4s{color}
| {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  4m  7s{color} | {color:blue}
ql in master has 1538 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 41s{color} | {color:blue}
itests/hive-unit in master has 2 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 29s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 27s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  2m 14s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 49s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 49s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 44s{color}
| {color:green} ql: The patch generated 0 new + 499 unchanged - 4 fixed = 499 total (was 503)
{color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 18s{color}
| {color:green} itests/hive-unit: The patch generated 0 new + 170 unchanged - 2 fixed = 170
total (was 172) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m  0s{color}
| {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  5m 13s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 38s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 13s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 32m 17s{color} | {color:black}
{color} |
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|| Subsystem || Report/Notes ||
| Optional Tests |  asflicense  javac  javadoc  findbugs  checkstyle  compile  |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u5 (2017-09-19)
x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-20383/dev-support/hive-personality.sh
|
| git revision | master / 89c275e |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| modules | C: ql itests/hive-unit U: . |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-20383/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> RS deduplication does not always enforce hive.optimize.reducededuplication.min.reducer
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-22538
>                 URL: https://issues.apache.org/jira/browse/HIVE-22538
>             Project: Hive
>          Issue Type: Bug
>          Components: Physical Optimizer
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Krisztian Kasa
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-22538.2.patch, HIVE-22538.3.patch, HIVE-22538.4.patch, HIVE-22538.5.patch,
HIVE-22538.6.patch, HIVE-22538.6.patch, HIVE-22538.7.patch, HIVE-22538.8.patch, HIVE-22538.8.patch,
HIVE-22538.8.patch, HIVE-22538.patch
>
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> For transactional tables, that property might be overriden to 1, which can lead to merging
final aggregation into a single stage (hence leading to performance degradation). For instance,
when autogather column stats is enabled, this can happen for the following query:
> {code}
> set hive.support.concurrency=true;
> set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
> EXPLAIN
> CREATE TABLE x STORED AS ORC TBLPROPERTIES('transactional'='true') AS
> SELECT * FROM SRC x CLUSTER BY x.key;
> {code}



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