[CASSANDRA-8686] Introduce Latency Target for Stress

• Type: Improvement
• Status: Patch Available
• Priority: Low
• Resolution: Unresolved
• Component/s: Tool/stress
• Labels: stress

Test and Documentation Plan

CI

• Assignee: Stefan Miklosovic
• Reporter: jonathan lacefield

Authors

Stefan Miklosovic

Reviewers

Brandon Williams

• Created: 26/Jan/15 20:00
• Updated: 30/May/23 19:34

Description

This item is a request to add a latency target to the rate option for the new stress tool. The goal of the latency target would be to provide a guideline for SLAs to the stress tool so the stress tool can determine threads and throughputs that can be sustained while meeting the SLA targets.

For example:

cassandra-stress [options/commands] -rate latency p90=5 p95=10 p99=100

The outcome of this command would be a stress execution that would gradually increase threads, and hence throughput (trans/sec), until the latency profile can no longer be satisfied with the current workload (yaml file definition) and/or cluster. This would provide a ceiling for throughput and connections for the given cluster, workload, and SLA profile.

Issue Links

• links to: GitHub Pull Request #2373