Raghav Aggarwal created HIVE-27169:
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Summary: New Locked List to prevent configuration change at
runtime without throwing error
Key: HIVE-27169
URL: https://issues.apache.org/jira/browse/HIVE-27169
Project: Hive
Issue Type: Improvement
Affects Versions: 4.0.0-alpha-2
Reporter: Raghav Aggarwal
Assignee: Raghav Aggarwal
_*AIM*_
Create a new locked list called{{ hive.conf.locked.list}} which contains comma
separated configuration that won't be changed during runtime. If someone try to
change them at runtime then it will give WARN log on beeline itself.
_*How is it different from Restricted List?*_
When running hql file or at runtime, if a configuration present in restricted
list get updated then it will throw error and won't proceed with further
execution of hql file.
With locked list, the configuration that is getting updated will throw WARN log
on beeline and will continue to execute the hql file.
_*Why is it required?*_
In organisations, admin want to enforce some configs which user shouldn't be
able to change at runtime and it shouldn't affect user's existing hql scripts.
Therefore, this locked list will be useful as it will not allow user to change
the value of particular configs and it will also not stop the execution of hql
scripts.
{_}*NOTE*{_}: Only at cluster level {{hive.conf.locked.list }}can be set and
after that the hive service needs to be restarted.
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