[jira] [Work logged] (HIVE-26509) Introduce dynamic leader election in HMS

Thu, 03 Nov 2022 01:51:04 -0700 


     [ 
https://issues.apache.org/jira/browse/HIVE-26509?focusedWorklogId=822987&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-822987
 ]

ASF GitHub Bot logged work on HIVE-26509:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Nov/22 08:50
            Start Date: 03/Nov/22 08:50
    Worklog Time Spent: 10m 
      Work Description: sonarcloud[bot] commented on PR #3567:
URL: https://github.com/apache/hive/pull/3567#issuecomment-1301797258

   Kudos, SonarCloud Quality Gate passed!    [![Quality Gate 
passed](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/QualityGateBadge/passed-16px.png
 'Quality Gate 
passed')](https://sonarcloud.io/dashboard?id=apache_hive&pullRequest=3567)
   
   
[![Bug](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/bug-16px.png
 
'Bug')](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=BUG)
 
[![C](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/C-16px.png
 
'C')](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=BUG)
 [10 
Bugs](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=BUG)
  
   
[![Vulnerability](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/vulnerability-16px.png
 
'Vulnerability')](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=VULNERABILITY)
 
[![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png
 
'A')](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=VULNERABILITY)
 [0 
Vulnerabilities](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=VULNERABILITY)
  
   [![Security 
Hotspot](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/security_hotspot-16px.png
 'Security 
Hotspot')](https://sonarcloud.io/project/security_hotspots?id=apache_hive&pullRequest=3567&resolved=false&types=SECURITY_HOTSPOT)
 
[![E](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/E-16px.png
 
'E')](https://sonarcloud.io/project/security_hotspots?id=apache_hive&pullRequest=3567&resolved=false&types=SECURITY_HOTSPOT)
 [1 Security 
Hotspot](https://sonarcloud.io/project/security_hotspots?id=apache_hive&pullRequest=3567&resolved=false&types=SECURITY_HOTSPOT)
  
   [![Code 
Smell](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/code_smell-16px.png
 'Code 
Smell')](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=CODE_SMELL)
 
[![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png
 
'A')](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=CODE_SMELL)
 [65 Code 
Smells](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3567&resolved=false&types=CODE_SMELL)
   
   [![No Coverage 
information](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/CoverageChart/NoCoverageInfo-16px.png
 'No Coverage 
information')](https://sonarcloud.io/component_measures?id=apache_hive&pullRequest=3567&metric=coverage&view=list)
 No Coverage information  
   [![No Duplication 
information](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/Duplications/NoDuplicationInfo-16px.png
 'No Duplication 
information')](https://sonarcloud.io/component_measures?id=apache_hive&pullRequest=3567&metric=duplicated_lines_density&view=list)
 No Duplication information
   
   




Issue Time Tracking
-------------------

    Worklog Id:     (was: 822987)
    Time Spent: 6h  (was: 5h 50m)

> Introduce dynamic leader election in HMS
> ----------------------------------------
>
>                 Key: HIVE-26509
>                 URL: https://issues.apache.org/jira/browse/HIVE-26509
>             Project: Hive
>          Issue Type: New Feature
>          Components: Standalone Metastore
>            Reporter: Zhihua Deng
>            Assignee: Zhihua Deng
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 6h
>  Remaining Estimate: 0h
>
> From HIVE-21841 we have a leader HMS selected by configuring 
> metastore.housekeeping.leader.hostname on startup. This approach saves us 
> from running duplicated HMS's housekeeping tasks cluster-wide. 
> In this jira, we introduce another dynamic leader election: adopt hive lock 
> to implement the leader election. Once a HMS owns the lock, then it becomes 
> the leader, carries out the housekeeping tasks, and sends heartbeats to renew 
> the lock before timeout. If the leader fails to reclaim the lock, then stops 
> the already started tasks if it has, the electing event is audited. We can 
> achieve a more dynamic leader when the original goes down or in the public 
> cloud without well configured property, and reduce the leader’s burdens by 
> running these tasks among different leaders.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

Reply via email to