[HDDS-11649] Recon ListKeys API: Simplify filter predicates

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: Ozone Recon
• Labels: pull-request-available
• Assignee: Stephen O'Donnell
• Reporter: Stephen O'Donnell
• Created: 5 days ago 17:00
• Updated: 4 days ago 17:47
• Resolved: 4 days ago 17:47

Description

In the Recon ListKeys API, a series of predicate lambdas are created to filter the returned keys. The filters create 3 new lambdas for each key to check and this api could iterate a lot of keys in parallel.

Benchmarking the original code against simple IF statements shows the IF statements to be about 3x faster. However the creation of all the lambda object resulted in about 4500MB/s of short lived objects.

This PR simplifies the code to IF statements. It should not change any functionality.

Issue Links

• links to: GitHub Pull Request #7395