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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21841) Leader election in HMS to run housekeeping tasks.
Date Wed, 19 Jun 2019 19:19:01 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16867926#comment-16867926
] 

Hive QA commented on HIVE-21841:
--------------------------------

| (x) *{color:red}-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}  2m  4s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 52s{color}
| {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 54s{color} |
{color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 33s{color}
| {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  2m 44s{color} | {color:blue}
standalone-metastore/metastore-common in master has 31 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  1m 11s{color} | {color:blue}
standalone-metastore/metastore-server in master has 184 extant Findbugs warnings. {color}
|
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  4m  9s{color} | {color:blue}
ql in master has 2253 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 42s{color} | {color:blue}
itests/hive-unit in master has 2 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  2m 44s{color} |
{color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 29s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 20s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 51s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  2m 51s{color} | {color:green}
the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 18s{color} | {color:red}
itests/hive-unit: The patch generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {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}  9m 15s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  2m 49s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 15s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 47m 34s{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-17654/dev-support/hive-personality.sh
|
| git revision | master / f7b1809 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-17654/yetus/diff-checkstyle-itests_hive-unit.txt
|
| modules | C: standalone-metastore/metastore-common standalone-metastore/metastore-server
ql itests/hive-unit U: . |
| Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-17654/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Leader election in HMS to run housekeeping tasks.
> -------------------------------------------------
>
>                 Key: HIVE-21841
>                 URL: https://issues.apache.org/jira/browse/HIVE-21841
>             Project: Hive
>          Issue Type: New Feature
>    Affects Versions: 4.0.0
>            Reporter: Ashutosh Bapat
>            Assignee: Ashutosh Bapat
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-21841.01.patch, HIVE-21841.02.patch, HIVE-21841.04.patch, HIVE-21841.05.patch,
HIVE-21841.06.patch, HIVE-21841.07.patch, HIVE-21841.08.patch, HIVE-21841.09.patch
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> HMS performs housekeeping tasks. When there are multiple HMSes we need to have a leader
HMS elected which will carry out those housekeeping tasks. 
> These tasks include execution of compaction tasks, auto-discovering partitions for external
tables, generation of compaction tasks, repl thread etc.
> Note that, though the code for compaction tasks, auto-discovery of partitions etc. is
in Hive, the actual tasks are initiated by an HMS configured to do so. So, leader election
is required only for HMS and not for HS2.



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