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https://issues.apache.org/jira/browse/HIVE-27259?focusedWorklogId=856740&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-856740
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ASF GitHub Bot logged work on HIVE-27259:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Apr/23 12:42
Start Date: 13/Apr/23 12:42
Worklog Time Spent: 10m
Work Description: dengzhhu653 commented on PR #4232:
URL: https://github.com/apache/hive/pull/4232#issuecomment-1506898061
We have implemented the lease/host based leader election in HMS,
https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/leader/LeaderElection.java
https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/leader/LeaseLeaderElection.java
could you please check that?
Issue Time Tracking
-------------------
Worklog Id: (was: 856740)
Time Spent: 20m (was: 10m)
> Enhancing Hive Metastore common library support for Leader Election
> -------------------------------------------------------------------
>
> Key: HIVE-27259
> URL: https://issues.apache.org/jira/browse/HIVE-27259
> Project: Hive
> Issue Type: Improvement
> Components: Standalone Metastore
> Reporter: Subhasis Gorai
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> I couldn't find Leader Election support in Hive metastore foundational
> libraries.
> In a distributed environment, we often need to select a node as the leader to
> coordinate the execution of complex jobs. Working on a Hive Replication
> enhancement where we need to spawn threads with specialized work but we need
> to make sure that such an HS2 thread is running strictly on a single HS2
> instance at a given moment.
> We need to enhance HMS common libraries to include the 'Leader Election'
> recipe.
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