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https://issues.apache.org/jira/browse/HIVE-26509?focusedWorklogId=812335&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-812335
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ASF GitHub Bot logged work on HIVE-26509:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Sep/22 03:02
Start Date: 27/Sep/22 03:02
Worklog Time Spent: 10m
Work Description: dengzhhu653 commented on code in PR #3567:
URL: https://github.com/apache/hive/pull/3567#discussion_r980685796
##########
ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUpdaterThread.java:
##########
@@ -159,6 +159,7 @@ public void run() {
return;
}
}
+ stopWorkers();
Review Comment:
The `stopWorker()` is called when there is an `InterruptedException`, add
extra stops here just in case.
Issue Time Tracking
-------------------
Worklog Id: (was: 812335)
Time Spent: 3h 40m (was: 3.5h)
> 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
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> 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.
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