Lissage côté serveur : pipeline moving_fn
Moyenne mobile façon pipeline moving_fn d'Elasticsearch superposée à la métrique brute : la spec lit les objets avg_lat.value et smooth.value du bucket — données d'exemple inline.
Cas d'usage
Tendance de latence lissée sur 24 buckets sans surcharger le rendu client.
Prérequis
Kibana 7.10+, Elasticsearch 6.4+
Vega-Lite
{
"$schema": "https://vega.github.io/schema/vega-lite/v5.json",
"data": {
"values": [
{ "key": "2026-06-08T00:00:00", "avg_lat": { "value": 210 }, "smooth": { "value": 205 } },
{ "key": "2026-06-08T01:00:00", "avg_lat": { "value": 260 }, "smooth": { "value": 225 } },
{ "key": "2026-06-08T02:00:00", "avg_lat": { "value": 195 }, "smooth": { "value": 222 } },
{ "key": "2026-06-08T03:00:00", "avg_lat": { "value": 310 }, "smooth": { "value": 248 } },
{ "key": "2026-06-08T04:00:00", "avg_lat": { "value": 285 }, "smooth": { "value": 258 } },
{ "key": "2026-06-08T05:00:00", "avg_lat": { "value": 240 }, "smooth": { "value": 255 } },
{ "key": "2026-06-08T06:00:00", "avg_lat": { "value": 330 }, "smooth": { "value": 270 } },
{ "key": "2026-06-08T07:00:00", "avg_lat": { "value": 375 }, "smooth": { "value": 295 } },
{ "key": "2026-06-08T08:00:00", "avg_lat": { "value": 290 }, "smooth": { "value": 293 } },
{ "key": "2026-06-08T09:00:00", "avg_lat": { "value": 255 }, "smooth": { "value": 288 } },
{ "key": "2026-06-08T10:00:00", "avg_lat": { "value": 300 }, "smooth": { "value": 292 } },
{ "key": "2026-06-08T11:00:00", "avg_lat": { "value": 270 }, "smooth": { "value": 287 } }
]
},
"transform": [
{ "calculate": "datum.avg_lat.value", "as": "brut" },
{ "calculate": "datum.smooth.value", "as": "lisse" }
],
"layer": [
{ "mark": { "type": "line", "opacity": 0.3 },
"encoding": { "x": { "field": "key", "type": "temporal" }, "y": { "field": "brut", "type": "quantitative" } } },
{ "mark": { "type": "line", "strokeWidth": 2.5 },
"encoding": { "x": { "field": "key", "type": "temporal" }, "y": { "field": "lisse", "type": "quantitative", "title": "Latence (ms)" } } }
]
}Kibanamoving_fnPipeline aggLissage