Grafana是一款開(kāi)源的數(shù)據(jù)可視化和分析平臺(tái)。使用Grafana可以幫助您監(jiān)控和分析數(shù)據(jù)，制作儀表盤(pán)等。在Grafana5.4中，JSON是一個(gè)常用的數(shù)據(jù)格式，因?yàn)樗梢暂p松地與Grafana進(jìn)行通信。

{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "prometheus",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 9,
"w": 12,
"x": 0,
"y": 0
},
"hiddenSeries": false,
"id": 39,
"legend": {
"avg": false,
"current": false,
"max": true,
"min": true,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "connected",
"options": {
"alertThreshold": true
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "node_memory_Active_bytes",
"format": "time_series",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeShift": null,
"title": "Memory Active",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "bytes",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
]
}

JSON中包含了Grafana的儀表盤(pán)配置數(shù)據(jù)。其中包括了數(shù)據(jù)的數(shù)據(jù)源、圖表類(lèi)型、坐標(biāo)軸、查詢(xún)、格式、圖例、閾值、顯示等屬性。您可以通過(guò)修改這些屬性來(lái)自定義Grafana展示的數(shù)據(jù)和圖表。

總之，Grafana5.4中的JSON是一個(gè)非常強(qiáng)大的工具，它讓您可以自定義完全符合您需求的數(shù)據(jù)可視化和分析結(jié)果。