[9.1] (backport #17759) Obsolete PQ setting queue.checkpoint.interval #17825
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Release notes
Dropped the persistent queue setting
queue.checkpoint.interval.What does this PR do?
queue.checkpoint.intervalhas never been implemented.This commit adds warning message when it is used and cleans up references.
Why is it important/What is the impact to the user?
Checklist
Author's Checklist
queue.checkpoint.intervalHow to test this PR locally
When the config is set in logstash.yml or pipelien.yml, a warning message is logged.
Related issues
Use cases
Screenshots
Logs
This is an automatic backport of pull request #17759 done by [Mergify](https://mergify.com).