Ashutosh Bapat created HIVE-21841:
-------------------------------------
Summary: 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
Reporter: Ashutosh Bapat
Assignee: Ashutosh Bapat
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.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
