HPA Scaling Quality Report

Coprocessor Worker Autoscaling Evaluation

Healthy Score: 72/100 v0 Heuristic Feb 8, 2026 (24 hours)
Cluster ID 2013516099403907072
HPA Target coprocessor-hpa

Region

alicloud-ap-southeast-1

CPU Target

55% (+/-10% tolerance)

HPA Metrics

cpu (Resource) + ext_cpu_scaled_ratio (External)

Scaling Events

14

7 up / 7 down

Thrashing Rate

42.9%

3 of 7 events

Max P99 Latency

45.2s

avg 2.3s

Avg CPU Utilization

1.9%

max 67.2% / target 55%

Scoring Overview

Workload Timeline

Copr P99 Latency TiDB P99 Latency CPU Utilization Replicas Scale Out Scale In

CPU Util Distribution vs HPA Zones

Detailed Scaling Events

# Time Dir Change CPU Sparkline (+/-2min) CPU@Event Deviation Threshold Lag
Total: 14 events Scale-Up: 7 Scale-Down: 7

Scoring Breakdown

v0 Heuristic
72/100
Weighted Total: 74.75
5 categories evaluated

P99 Latency Distribution

Average

2.3s

Maximum

45.2s

Minimum

0.01s

Data Points

5,760

Normal Acceptable Degraded Poor Critical

HPA Configuration

CPU Target55%
Tolerance10%
Scale-Up Zone> 60.5%
Do-Nothing Zone49.5% - 60.5%
Scale-Down Zone< 49.5%
Min / Max Replicas2 / 30
Scale-Up PolicyMax
Scale-Down PolicyMax
Stabilization Window180s
CPU Request4 cores
Observed Replica Range2-5

Replica Distribution

Evaluation Criteria

v0 Heuristic Scoring: These criteria use rule-based heuristics. Scores are approximate and will be refined with ML-based evaluation in future versions.

Recommendations

Data Sources

Dataplane Prometheus 019bda6f-e0a4-7e29-bb26-5c4e0e874ec3
Application Prometheus 019bda70-1a2b-7c3d-aa45-6d5f1f985fd4

Generated: Feb 14, 2026 | Revision: v2.1 | Tool: scaling-evaluator | Methodology: autoscaler-dashboard v2

Namespace: tidb2013516099403907072