26Z27c
{
"annotations": {
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"datasource": "-- Grafana --",
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"hide": true,
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},
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}
},
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},
"editorMode": "code",
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},
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},
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}
},
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"x": 12,
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}
},
"title": "Top 10 Request Volume Rate (1m) by Bucket & API",
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"uid": "${datasource}"
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},
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},
"id": 400,
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},
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"uid": "${datasource}"
},
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"overrides": [
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"matcher": {
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"options": "Heap Objects Count"
},
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"id": "custom.axisPlacement",
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"displayMode": "table",
"placement": "bottom",
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},
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"sort": "desc"
}
},
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{
"datasource": {
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"uid": "${datasource}"
},
"editorMode": "code",
"expr": "sum(go_memstats_heap_alloc_bytes{cluster=~\"$cluster\"})",
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"refId": "A"
},
{
"datasource": {
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"uid": "${datasource}"
},
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]
},
{
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"uid": "${datasource}"
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"x": 12,
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},
"id": 14,
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"displayMode": "table",
"placement": "bottom",
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},
"tooltip": {
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"sort": "desc"
}
},
"title": "Top Node Drive Latency (I/O Bottleneck)",
"description": "High drive latencies indicate disk saturation. Metadata walks scan drives aggressively, creating I/O contention for standard reads.",
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{
"datasource": {
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"uid": "${datasource}"
},
"editorMode": "code",
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}
]
},
{
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"x": 0,
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},
"id": 500,
"title": "5. Error Distribution & Client Dropouts",
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},
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"uid": "${datasource}"
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"id": 6,
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"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
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"sort": "desc"
}
},
"title": "API Errors & Client Cancellations Rate (1m)",
"description": "Cancellations indicate clients timing out due to slow server responses (e.g. while blocked on List metadata scans).",
"type": "timeseries",
"targets": [
{
"datasource": {
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"uid": "${datasource}"
},
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"expr": "sum by (name) (rate(minio_api_requests_5xx_errors_total{cluster=~\"$cluster\"}[1m])) > 0",
"legendFormat": "5xx Error - {{name}}",
"range": true,
"refId": "A"
},
{
"datasource": {
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"uid": "${datasource}"
},
"editorMode": "code",
"expr": "sum by (name) (rate(minio_api_requests_4xx_errors_total{cluster=~\"$cluster\"}[1m])) > 0",
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"refId": "B"
},
{
"datasource": {
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"uid": "${datasource}"
},
"editorMode": "code",
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"refId": "C"
}
]
}
],
"refresh": "10s",
"schemaVersion": 38,
"style": "dark",
"tags": ["minio", "aistor", "sre", "troubleshooting", "goroutine-investigation"],
"templating": {
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{
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"uid": "${datasource}"
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"name": "cluster",
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},
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]
},
"time": {
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"to": "now"
},
"timepicker": {
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},
"timezone": "browser",
"title": "MinIO / AIStor - Root Cause & Asymmetric Load Triage",
"uid": "minio-aistor-triage-v2",
"version": 2
}
engineer