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Merge pull request #4 from renvins/feature/ping-metric
Implement ping service
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‎README.md

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# ServerPulse
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ServerPulse is an **open‑source**, real‑time performance monitoring tool for Paper Minecraft servers. It will collect key server metrics **(TPS, disk usage, heap memory, online player count, entities, chunks)** and store them in InfluxDB for visualization in Grafana.
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ServerPulse is an **open‑source**, real‑time performance monitoring tool for Paper Minecraft servers. It will collect key server metrics **(TPS, disk usage, heap memory, online player count, entities, chunks, ping)** and store them in InfluxDB for visualization in Grafana.
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<details>
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<summary>📊 View Dashboard Examples</summary>

‎build.gradle.kts

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group = "it.renvins"
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version = "0.1.3-SNAPSHOT"
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version = "0.1.4-SNAPSHOT"
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repositories {
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mavenCentral()

‎infra/grafana/dashboards/default_ping.json

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{
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"annotations": {
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"list": [
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{
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"builtIn": 1,
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"datasource": {
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"type": "grafana",
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"uid": "-- Grafana --"
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},
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"enable": true,
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"hide": true,
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"iconColor": "rgba(0, 211, 255, 1)",
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"name": "Annotations & Alerts",
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"type": "dashboard"
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}
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]
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},
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"editable": true,
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"fiscalYearStartMonth": 0,
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"graphTooltip": 0,
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"id": 4,
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"links": [],
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"panels": [
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{
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"datasource": {
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"type": "influxdb",
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"uid": "P5697886F9CA74929"
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},
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"fieldConfig": {
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"defaults": {
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"color": {
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"mode": "palette-classic"
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},
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"custom": {
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"axisBorderShow": false,
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"axisCenteredZero": false,
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"axisColorMode": "text",
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"axisLabel": "",
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"axisPlacement": "auto",
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"barAlignment": 0,
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"barWidthFactor": 0.6,
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"drawStyle": "line",
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"fillOpacity": 0,
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"gradientMode": "none",
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"hideFrom": {
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"legend": false,
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"tooltip": false,
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"viz": false
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},
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"insertNulls": false,
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"lineInterpolation": "linear",
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"lineWidth": 1,
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"pointSize": 5,
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"scaleDistribution": {
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"type": "linear"
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},
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"showPoints": "auto",
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"spanNulls": false,
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"stacking": {
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"group": "A",
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"mode": "none"
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},
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"thresholdsStyle": {
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"mode": "off"
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}
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},
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"mappings": [],
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green"
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},
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{
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"color": "red",
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"value": 80
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}
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]
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}
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},
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"overrides": []
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 0,
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"y": 0
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},
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"id": 1,
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"options": {
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"legend": {
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"calcs": [],
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"displayMode": "list",
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"placement": "bottom",
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"showLegend": true
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},
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"tooltip": {
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"hideZeros": false,
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"mode": "single",
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"sort": "none"
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}
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},
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"pluginVersion": "11.6.0",
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"targets": [
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{
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"datasource": {
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"type": "influxdb",
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"uid": "P5697886F9CA74929"
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},
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"query": "from(bucket: \"metrics_db\")\r\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\r\n |> filter(fn: (r) => r._measurement == \"minecraft_stats\")\r\n |> filter(fn: (r) => r._field == \"min_ping\")\r\n |> filter(fn: (r) => r.server == \"bed1\") // customize it\r\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\r\n |> yield(name: \"mean_min_ping\")",
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"refId": "A"
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}
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],
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"title": "Minimum ping",
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"type": "timeseries"
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},
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{
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"datasource": {
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"type": "influxdb",
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"uid": "P5697886F9CA74929"
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},
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"fieldConfig": {
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"defaults": {
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"color": {
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"mode": "palette-classic"
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},
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"custom": {
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"axisBorderShow": false,
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"axisCenteredZero": false,
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"axisColorMode": "text",
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"axisLabel": "",
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"axisPlacement": "auto",
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"barAlignment": 0,
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"barWidthFactor": 0.6,
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"drawStyle": "line",
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"fillOpacity": 0,
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"gradientMode": "none",
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"hideFrom": {
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"legend": false,
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"tooltip": false,
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"viz": false
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},
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"insertNulls": false,
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"lineInterpolation": "linear",
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"lineWidth": 1,
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"pointSize": 5,
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"scaleDistribution": {
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"type": "linear"
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},
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"showPoints": "auto",
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"spanNulls": false,
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"stacking": {
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"group": "A",
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"mode": "none"
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},
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"thresholdsStyle": {
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"mode": "off"
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}
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},
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"mappings": [],
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green"
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},
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{
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"color": "red",
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"value": 80
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}
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]
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}
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},
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"overrides": []
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 12,
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"y": 0
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},
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"id": 2,
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"options": {
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"legend": {
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"calcs": [],
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"displayMode": "list",
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"placement": "bottom",
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"showLegend": true
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},
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"tooltip": {
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"hideZeros": false,
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"mode": "single",
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"sort": "none"
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}
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},
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"pluginVersion": "11.6.0",
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"targets": [
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{
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"datasource": {
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"type": "influxdb",
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"uid": "P5697886F9CA74929"
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},
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"query": "from(bucket: \"metrics_db\")\r\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\r\n |> filter(fn: (r) => r._measurement == \"minecraft_stats\")\r\n |> filter(fn: (r) => r._field == \"max_ping\")\r\n |> filter(fn: (r) => r.server == \"bed1\") // customize it\r\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\r\n |> yield(name: \"mean_max_ping\")",
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"refId": "A"
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}
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],
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"title": "Maximum ping",
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"type": "timeseries"
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},
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{
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"datasource": {
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"type": "influxdb",
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"uid": "P5697886F9CA74929"
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},
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"fieldConfig": {
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"defaults": {
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"color": {
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"mode": "palette-classic"
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},
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"custom": {
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"axisBorderShow": false,
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"axisCenteredZero": false,
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"axisColorMode": "text",
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"axisLabel": "",
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"axisPlacement": "auto",
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"barAlignment": 0,
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"barWidthFactor": 0.6,
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"drawStyle": "line",
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"fillOpacity": 0,
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"gradientMode": "none",
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"hideFrom": {
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"legend": false,
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"tooltip": false,
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"viz": false
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},
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"insertNulls": false,
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"lineInterpolation": "linear",
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"lineWidth": 1,
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"pointSize": 5,
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"scaleDistribution": {
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"type": "linear"
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},
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"showPoints": "auto",
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"spanNulls": false,
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"stacking": {
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"group": "A",
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"mode": "none"
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},
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"thresholdsStyle": {
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"mode": "off"
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}
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},
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"mappings": [],
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green"
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},
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{
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"color": "red",
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"value": 80
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}
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]
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}
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},
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"overrides": []
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 0,
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"y": 8
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},
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"id": 3,
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"options": {
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"legend": {
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"calcs": [],
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"displayMode": "list",
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"placement": "bottom",
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"showLegend": true
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},
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"tooltip": {
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"hideZeros": false,
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"mode": "single",
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"sort": "none"
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}
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},
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"pluginVersion": "11.6.0",
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"targets": [
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{
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"datasource": {
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"type": "influxdb",
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"uid": "P5697886F9CA74929"
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},
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"query": "from(bucket: \"metrics_db\")\r\n |> range(start: v.timeRangeStart, stop: v.timeRangeStop)\r\n |> filter(fn: (r) => r._measurement == \"minecraft_stats\")\r\n |> filter(fn: (r) => r._field == \"avg_ping\")\r\n |> filter(fn: (r) => r.server == \"bed1\") // customize it\r\n |> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)\r\n |> yield(name: \"mean_avg_ping\")",
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"refId": "A"
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}
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],
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"title": "Average ping",
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"type": "timeseries"
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}
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],
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"preload": false,
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"schemaVersion": 41,
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"tags": [],
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"templating": {
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"list": []
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},
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"time": {
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"from": "now-30m",
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"to": "now"
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},
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"timepicker": {},
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"timezone": "browser",
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"title": "Bed1's ping",
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"uid": "aej6mg1xt1hj4e",
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"version": 3
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}

‎plugin/src/main/java/it/renvins/serverpulse/metrics/IPingRetriever.java

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package it.renvins.serverpulse.metrics;
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public interface IPingRetriever {
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/**
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* Retrieves the minimum ping of all online players.
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*
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* @return the minimum ping
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*/
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int getMinPing();
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/**
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* Retrieves the maximum ping of all online players.
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*
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* @return the maximum ping
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*/
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int getMaxPing();
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/**
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* Retrieves the average ping of all online players.
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*
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* @return the average ping
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*/
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int getAveragePing();
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}

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