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https://issues.apache.org/jira/browse/HIVE-21841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16867944#comment-16867944
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Hive QA commented on HIVE-21841:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12972208/HIVE-21841.09.patch
{color:green}SUCCESS:{color} +1 due to 9 test(s) being added or modified.
{color:green}SUCCESS:{color} +1 due to 16171 tests passed
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/17654/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17654/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17654/
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
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12972208 - PreCommit-HIVE-Build
> 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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