[CASSANDRA-15884] Add a startup check to detect if LZ4 uses java rather than native implementation

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0-beta1, 4.0
• Component/s: Dependencies
• Change Category: Performance
• Complexity: Low Hanging Fruit
• Platform: All

Source Control Link

c04f9f448dc0584783c21f39a59932185aa5a562

Test and Documentation Plan

manual testing

• Assignee: David Capwell
• Reporter: David Capwell

Authors

David Capwell

Reviewers

Aleksey Yeschenko

• Created: 19/Jun/20 00:44
• Updated: 03/Jan/21 17:02
• Resolved: 19/Jun/20 13:25

Description

In some environments the native implementation can’t link with glibc and silently falls back to java; this hurts performance. To help warn the operators, we should add a startup check to detect this.

Issue Links

• links to: Github Branch : improvement/CASSANDRA-15884