Server Health Analysis #391

Plan/src/main/java/com/djrapitops/plan/data/AnalysisData.java

@@ -41,10 +41,13 @@ public class AnalysisData extends RawData {
     private long refreshDate;
     private String pluginsTabLayout;
     private Map<String, Serializable> additionalDataReplaceMap;
-    @Deprecated
+
-    private String playersTable;
+    private Map<String, Long> analyzedValues;
+    private Set<StickyData> stickyMonthData;
 
     public AnalysisData() {
+        analyzedValues = new HashMap<>();
+        stickyMonthData = new HashSet<>();
     }
 
     public void setPluginsTabLayout(String pluginsTabLayout) {
@@ -55,10 +58,6 @@ public class AnalysisData extends RawData {
         this.additionalDataReplaceMap = additionalDataReplaceMap;
     }
 
-    public void setPlayersTable(String playersTable) {
-        this.playersTable = playersTable;
-    }
-
     private void addConstants() {
         addValue("version", MiscUtils.getIPlan().getVersion());
         addValue("worldPieColors", Settings.THEME_GRAPH_WORLD_PIE.toString());
@@ -95,13 +94,18 @@ public class AnalysisData extends RawData {
         long weekAgo = now - TimeAmount.WEEK.ms();
         long monthAgo = now - TimeAmount.MONTH.ms();
 
+        got("now", now);
+        got("dayAgo", dayAgo);
+        got("weekAgo", weekAgo);
+        got("monthAgo", monthAgo);
+
         Map<UUID, List<Session>> sessions = profile.getSessions();
         List<Session> allSessions = profile.getAllSessions();
         allSessions.sort(new SessionStartComparator());
 
         List<PlayerProfile> players = profile.getPlayers();
         List<PlayerProfile> ops = profile.getOps().collect(Collectors.toList());
-        int playersTotal = players.size();
+        long playersTotal = got("playersTotal", players.size());
 
         List<TPS> tpsData = profile.getTPSData(0, now).collect(Collectors.toList());
         List<TPS> tpsDataDay = profile.getTPSData(dayAgo, now).collect(Collectors.toList());
@@ -121,16 +125,224 @@ public class AnalysisData extends RawData {
         addValue("ops", ops.size());
         addValue("playersTotal", playersTotal);
 
+        healthTab(now, monthAgo, players, tpsDataMonth);
+
+        long totalPlaytime = profile.getTotalPlaytime();
+        addValue("playtimeTotal", playersTotal != 0 ? FormatUtils.formatTimeAmount(totalPlaytime) : "No Players");
+        addValue("playtimeAverage", playersTotal != 0 ? FormatUtils.formatTimeAmount(MathUtils.averageLong(totalPlaytime, playersTotal)) : "-");
+
+
+    }
+
+    private void healthTab(long now, long monthAgo, List<PlayerProfile> players, List<TPS> tpsDataMonth) {
+        double serverHealth = 100.0;
+        List<String> healthNotes = new ArrayList<>();
+
+        TreeMap<Long, Map<String, Set<UUID>>> activityData = new TreeMap<>();
+        for (PlayerProfile player : players) {
+            for (long date = now; date >= now - TimeAmount.MONTH.ms() * 2L; date -= TimeAmount.WEEK.ms() * 2L) {
+                double activityIndex = player.getActivityIndex(date);
+                String index = FormatUtils.readableActivityIndex(activityIndex)[1];
+
+                Map<String, Set<UUID>> map = activityData.getOrDefault(date, new HashMap<>());
+                Set<UUID> uuids = map.getOrDefault(index, new HashSet<>());
+                uuids.add(player.getUuid());
+                map.put(index, uuids);
+                activityData.put(date, map);
+            }
+        }
+
+        long fourWeeksAgo = now - TimeAmount.WEEK.ms() * 4L;
+
+        Map<String, Set<UUID>> activityNow = activityData.get(now);
+        Map<String, Set<UUID>> activityFourWAgo = activityData.get(fourWeeksAgo);
+
+        Set<UUID> veryActiveNow = activityNow.getOrDefault("Very Active", new HashSet<>());
+        Set<UUID> activeNow = activityNow.getOrDefault("Active", new HashSet<>());
+        Set<UUID> regularNow = activityNow.getOrDefault("Regular", new HashSet<>());
+        Set<UUID> veryActiveFWAG = activityFourWAgo.getOrDefault("Very Active", new HashSet<>());
+        Set<UUID> activeFWAG = activityFourWAgo.getOrDefault("Active", new HashSet<>());
+        Set<UUID> regularFWAG = activityFourWAgo.getOrDefault("Regular", new HashSet<>());
+
+        Set<UUID> regularRemainCompareSet = new HashSet<>(regularFWAG);
+        regularRemainCompareSet.addAll(activeFWAG);
+        regularRemainCompareSet.addAll(veryActiveFWAG);
+
+        int activeFWAGNum = regularRemainCompareSet.size();
+        regularRemainCompareSet.removeAll(regularNow);
+        regularRemainCompareSet.removeAll(activeNow);
+        regularRemainCompareSet.removeAll(veryActiveNow);
+        int notRegularAnymore = regularRemainCompareSet.size();
+        int remain = activeFWAGNum - notRegularAnymore;
+        double percRemain = remain * 100.0 / activeFWAGNum;
+
+        Set<UUID> regularNewCompareSet = new HashSet<>(regularNow);
+        regularNewCompareSet.addAll(activeNow);
+        regularNewCompareSet.addAll(veryActiveNow);
+        regularNewCompareSet.removeAll(regularFWAG);
+        regularNewCompareSet.removeAll(activeFWAG);
+        regularNewCompareSet.removeAll(veryActiveFWAG);
+        int newActive = regularNewCompareSet.size();
+
+        int change = newActive - notRegularAnymore;
+
+        String remainNote = "";
+        if (activeFWAGNum != 0) {
+            remainNote = "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
+            if (percRemain > 50) {
+                remainNote += Html.GREEN_THUMB.parse();
+            } else if (percRemain > 20) {
+                remainNote += Html.YELLOW_FLAG.parse();
+            } else {
+                remainNote += Html.RED_WARN.parse();
+                serverHealth -= 2.5;
+            }
+
+            remainNote += " " + FormatUtils.cutDecimals(percRemain) + "% of regular players have remained active (" + remain + "/" + activeFWAGNum + ")";
+        }
+        if (change > 0) {
+            healthNotes.add(
+                    "<p>" + Html.GREEN_THUMB.parse() + " Number of regular players has increased (+" + change + ")<br>" +
+                            remainNote + "</p>");
+        } else if (change == 0) {
+            healthNotes.add(
+                    "<p>" + Html.GREEN_THUMB.parse() + " Number of regular players has stayed the same (+" + change + ")<br>" +
+                            remainNote + "</p>");
+        } else if (change > -20) {
+            healthNotes.add(
+                    "<p>" + Html.YELLOW_FLAG.parse() + " Number of regular players has decreased (" + change + ")<br>" +
+                            remainNote + "</p>");
+            serverHealth -= 5;
+        } else {
+            healthNotes.add(
+                    "<p>" + Html.RED_WARN.parse() + " Number of regular players has decreased (" + change + ")<br>" +
+                            remainNote + "</p>");
+            serverHealth -= 10;
+        }
+
+        double avgOnlineOnRegister = MathUtils.averageInt(stickyMonthData.stream().map(StickyData::getOnlineOnJoin));
+        if (avgOnlineOnRegister >= 1) {
+            healthNotes.add("<p>" + Html.GREEN_THUMB.parse() + " New Players have players to play with when they join ("
+                    + FormatUtils.cutDecimals(avgOnlineOnRegister) + " on average)</p>");
+        } else {
+            healthNotes.add("<p>" + Html.YELLOW_FLAG.parse() + " New Players may not have players to play with when they join ("
+                    + FormatUtils.cutDecimals(avgOnlineOnRegister) + " on average)</p>");
+            serverHealth -= 5;
+        }
+
+        long newM = value("newM");
+        long stuckPerM = value("stuckPerM");
+
+        if (newM != 0) {
+            double stuckPerc = MathUtils.averageDouble(stuckPerM, newM) * 100;
+            if (stuckPerc >= 25) {
+                healthNotes.add("<p>" + Html.GREEN_THUMB.parse() + " " + FormatUtils.cutDecimals(stuckPerc)
+                        + "% of new players have stuck around (" + stuckPerM + "/" + newM + ")</p>");
+            } else {
+                healthNotes.add("<p>" + Html.YELLOW_FLAG.parse() + " " + FormatUtils.cutDecimals(stuckPerc)
+                        + "% of new players have stuck around (" + stuckPerM + "/" + newM + ")</p>");
+            }
+        }
+
+        List<PlayerProfile> currentActivePlayers = players.stream()
+                .filter(player -> player.getActivityIndex(now) >= 1.75)
+                .collect(Collectors.toList());
+
+        long twoWeeksAgo = now - TimeAmount.WEEK.ms() * 2L;
+
+        long totalFourToTwoWeeks = 0;
+        long totalLastTwoWeeks = 0;
+        for (PlayerProfile activePlayer : currentActivePlayers) {
+            totalFourToTwoWeeks += activePlayer.getPlaytime(monthAgo, twoWeeksAgo);
+            totalLastTwoWeeks += activePlayer.getPlaytime(twoWeeksAgo, now);
+        }
+        int currentlyActive = currentActivePlayers.size();
+        if (currentlyActive != 0) {
+            long avgFourToTwoWeeks = MathUtils.averageLong(totalFourToTwoWeeks, currentlyActive);
+            long avgLastTwoWeeks = MathUtils.averageLong(totalLastTwoWeeks, currentlyActive);
+            String avgLastTwoWeeksString = FormatUtils.formatTimeAmount(avgLastTwoWeeks);
+            String avgFourToTwoWeeksString = FormatUtils.formatTimeAmount(avgFourToTwoWeeks);
+            if (avgFourToTwoWeeks >= avgLastTwoWeeks) {
+                healthNotes.add("<p>" + Html.GREEN_THUMB.parse() + " Active players to have things to do ("
+                        + avgLastTwoWeeksString + " vs " + avgFourToTwoWeeksString
+                        + ")</p>");
+            } else if (avgFourToTwoWeeks - avgLastTwoWeeks > TimeAmount.HOUR.ms() * 2L) {
+                healthNotes.add("<p>" + Html.RED_WARN.parse() + " Active players might to be running out of things to do (Played "
+                        + avgLastTwoWeeksString + " vs " + avgFourToTwoWeeksString
+                        + ", last two weeks vs weeks 2-4)</p>");
+                serverHealth -= 5;
+            } else {
+                healthNotes.add("<p>" + Html.YELLOW_FLAG.parse() + " Active players might to be running out of things to do ("
+                        + avgLastTwoWeeksString + " vs " + avgFourToTwoWeeksString
+                        + ")</p>");
+            }
+        }
+
+        long serverDownTime = ServerProfile.serverDownTime(tpsDataMonth);
+        long serverIdleTime = ServerProfile.serverIdleTime(tpsDataMonth);
+        double aboveThreshold = ServerProfile.aboveLowThreshold(tpsDataMonth);
+        long tpsSpikeMonth = value("tpsSpikeMonth");
+
+        String avgLowThresholdString = "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
+        if (aboveThreshold >= 0.96) {
+            avgLowThresholdString += Html.GREEN_THUMB.parse();
+        } else if (aboveThreshold >= 0.9) {
+            avgLowThresholdString += Html.YELLOW_FLAG.parse();
+            serverHealth *= 0.9;
+        } else {
+            avgLowThresholdString += Html.RED_WARN.parse();
+            serverHealth *= 0.6;
+        }
+        avgLowThresholdString += " Average TPS was above Low Threshold "
+                + FormatUtils.cutDecimals(aboveThreshold * 100.0) + "% of the time";
+
+        if (tpsSpikeMonth <= 5) {
+            healthNotes.add("<p>" + Html.GREEN_THUMB.parse()
+                    + " Average TPS dropped below Low Threshold (" + Settings.THEME_GRAPH_TPS_THRESHOLD_MED.getNumber() + ")" +
+                    " " + tpsSpikeMonth + " times<br>" +
+                    avgLowThresholdString + "</p>");
+        } else if (tpsSpikeMonth <= 25) {
+            healthNotes.add("<p>" + Html.YELLOW_FLAG.parse()
+                    + " Average TPS dropped below Low Threshold (" + Settings.THEME_GRAPH_TPS_THRESHOLD_MED.getNumber() + ")" +
+                    " " + tpsSpikeMonth + " times<br>" +
+                    avgLowThresholdString + "</p>");
+            serverHealth *= 0.95;
+        } else {
+            healthNotes.add("<p>" + Html.RED_WARN.parse()
+                    + " Average TPS dropped below Low Threshold (" + Settings.THEME_GRAPH_TPS_THRESHOLD_MED.getNumber() + ")" +
+                    " " + tpsSpikeMonth + " times<br>" +
+                    avgLowThresholdString + "</p>");
+            serverHealth *= 0.8;
+        }
+
+        if (serverDownTime <= TimeAmount.DAY.ms()) {
+            healthNotes.add("<p>" + Html.GREEN_THUMB.parse() + " Total Server downtime (No Data) was "
+                    + FormatUtils.formatTimeAmount(serverDownTime) + "</p>");
+        } else if (serverDownTime <= TimeAmount.WEEK.ms()) {
+            healthNotes.add("<p>" + Html.YELLOW_FLAG.parse() + " Total Server downtime (No Data) was "
+                    + FormatUtils.formatTimeAmount(serverDownTime) + "</p>");
+            serverHealth *= 0.6;
+        } else {
+            healthNotes.add("<p>" + Html.RED_WARN.parse() + " Total Server downtime (No Data) was "
+                    + FormatUtils.formatTimeAmount(serverDownTime) + "</p>");
+            serverHealth *= 0.3;
+        }
+        healthNotes.add("<p>" + Html.FA_COLORED_ICON.parse("red", "life-ring") + " Server was idle (No Players) "
+                + FormatUtils.formatTimeAmount(serverIdleTime) + "</p>");
+
+        StringBuilder healthNoteBuilder = new StringBuilder();
+        for (String healthNote : healthNotes) {
+            healthNoteBuilder.append(healthNote);
+        }
+        addValue("healthNotes", healthNoteBuilder.toString());
+        addValue("healthIndex", serverHealth);
+
         // TODO Rewrite Activity Pie
         addValue("playersActive", 0);
         addValue("active", 0);
         addValue("inactive", 0);
         addValue("joinLeaver", 0);
         addValue("banned", 0);
-
-        long totalPlaytime = profile.getTotalPlaytime();
-        addValue("playtimeTotal", playersTotal != 0 ? FormatUtils.formatTimeAmount(totalPlaytime) : "No Players");
-        addValue("playtimeAverage", playersTotal != 0 ? FormatUtils.formatTimeAmount(MathUtils.averageLong(totalPlaytime, playersTotal)) : "-");
     }
 
     private void commandUsage(Map<String, Integer> commandUsage) {
@@ -144,10 +356,10 @@ public class AnalysisData extends RawData {
     }
 
     private void onlineActivityNumbers(ServerProfile profile, Map<UUID, List<Session>> sessions, List<PlayerProfile> players) {
-        long now = MiscUtils.getTime();
+        long now = value("now");
-        long dayAgo = now - TimeAmount.DAY.ms();
+        long dayAgo = value("dayAgo");
-        long weekAgo = now - TimeAmount.WEEK.ms();
+        long weekAgo = value("weekAgo");
-        long monthAgo = now - TimeAmount.MONTH.ms();
+        long monthAgo = value("monthAgo");
 
         List<PlayerProfile> newDay = profile.getPlayersWhoRegistered(dayAgo, now).collect(Collectors.toList());
         List<PlayerProfile> newWeek = profile.getPlayersWhoRegistered(weekAgo, now).collect(Collectors.toList());
@@ -159,10 +371,10 @@ public class AnalysisData extends RawData {
         int uniqD = uniqueDay.size();
         int uniqW = uniqueWeek.size();
         int uniqM = uniqueMonth.size();
-        int newD = newDay.size();
+        long newD = got("newD", newDay.size());
-        int newW = newWeek.size();
+        long newW = got("newW", newWeek.size());
-        int newM = newMonth.size();
+        long newM = got("newM", newMonth.size());
-        int playersTotal = players.size();
+        long playersTotal = value("playersTotal");
 
         addValue("playersDay", uniqD);
         addValue("playersWeek", uniqW);
@@ -180,12 +392,15 @@ public class AnalysisData extends RawData {
         addValue("playersNewAverageWeek", AnalysisUtils.getNewUsersPerDay(toRegistered(newWeek), -1, newW));
         addValue("playersNewAverageMonth", AnalysisUtils.getNewUsersPerDay(toRegistered(newMonth), -1, newM));
 
-        stickiness(now, weekAgo, monthAgo, newDay, newWeek, newMonth, newD, newW, newM);
+        stickiness(now, weekAgo, monthAgo, newDay, newWeek, newMonth);
     }
 
     private void stickiness(long now, long weekAgo, long monthAgo,
-                            List<PlayerProfile> newDay, List<PlayerProfile> newWeek, List<PlayerProfile> newMonth,
+                            List<PlayerProfile> newDay, List<PlayerProfile> newWeek, List<PlayerProfile> newMonth) {
-                            int newD, int newW, int newM) {
+        long newD = value("newD");
+        long newW = value("newW");
+        long newM = value("newM");
+
         long fourDaysAgo = now - TimeAmount.DAY.ms() * 4L;
         long twoWeeksAgo = now - TimeAmount.WEEK.ms() * 2L;
 
@@ -198,6 +413,8 @@ public class AnalysisData extends RawData {
 
         int stuckPerM = playersStuckPerMonth.size();
         int stuckPerW = playersStuckPerWeek.size();
+        got("stuckPerM", stuckPerM);
+        got("stuckPerW", stuckPerW);
 
         addValue("playersStuckMonth", stuckPerM);
         addValue("playersStuckWeek", stuckPerW);
@@ -206,7 +423,7 @@ public class AnalysisData extends RawData {
 
         if (newD != 0) {
             // New Players
-            Set<StickyData> stickyM = newMonth.stream().map(StickyData::new).distinct().collect(Collectors.toSet());
+            stickyMonthData = newMonth.stream().map(StickyData::new).distinct().collect(Collectors.toSet());
             Set<StickyData> stickyW = playersStuckPerMonth.stream().map(StickyData::new).distinct().collect(Collectors.toSet());
             // New Players who stayed
             Set<StickyData> stickyStuckM = newMonth.stream().map(StickyData::new).distinct().collect(Collectors.toSet());
@@ -218,7 +435,7 @@ public class AnalysisData extends RawData {
 
                 Set<StickyData> similarM = new HashSet<>();
                 Set<StickyData> similarW = new HashSet<>();
-                for (StickyData stickyData : stickyM) {
+                for (StickyData stickyData : stickyMonthData) {
                     if (stickyData.distance(data) < 2.5) {
                         similarM.add(stickyData);
                     }
@@ -302,9 +519,12 @@ public class AnalysisData extends RawData {
     }
 
     private void performanceTab(List<TPS> tpsData, List<TPS> tpsDataDay, List<TPS> tpsDataWeek, List<TPS> tpsDataMonth) {
-        addValue("tpsSpikeMonth", ServerProfile.getLowSpikeCount(tpsDataMonth));
+        got("tpsSpikeMonth", ServerProfile.getLowSpikeCount(tpsDataMonth));
-        addValue("tpsSpikeWeek", ServerProfile.getLowSpikeCount(tpsDataWeek));
+        got("tpsSpikeWeek", ServerProfile.getLowSpikeCount(tpsDataWeek));
-        addValue("tpsSpikeDay", ServerProfile.getLowSpikeCount(tpsDataDay));
+        got("tpsSpikeDay", ServerProfile.getLowSpikeCount(tpsDataDay));
+        addValue("tpsSpikeMonth", value("tpsSpikeMonth"));
+        addValue("tpsSpikeWeek", value("tpsSpikeWeek"));
+        addValue("tpsSpikeDay", value("tpsSpikeDay"));
 
         addValue("playersOnlineSeries", PlayerActivityGraphCreator.buildSeriesDataString(tpsData));
         addValue("tpsSeries", TPSGraphCreator.buildSeriesDataString(tpsData));
@@ -337,6 +557,15 @@ public class AnalysisData extends RawData {
         addValue("chunkAverageWeek", FormatUtils.cutDecimals(MathUtils.averageInt(tpsDataWeek.stream().map(TPS::getChunksLoaded).filter(i -> i != 0))));
         addValue("chunkAverageDay", FormatUtils.cutDecimals(MathUtils.averageInt(tpsDataDay.stream().map(TPS::getChunksLoaded).filter(i -> i != 0))));
     }
+
+    private long got(String key, long v) {
+        analyzedValues.put(key, v);
+        return v;
+    }
+
+    private long value(String key) {
+        return analyzedValues.getOrDefault(key, 0L);
+    }
 }
 
 class StickyData {
@@ -368,6 +597,12 @@ class StickyData {
                 }
             }
         }
+        if (messagesSent == null) {
+            messagesSent = 0;
+        }
+        if (onlineOnJoin == null) {
+            onlineOnJoin = 0;
+        }
     }
 
     public double distance(StickyData data) {
@@ -393,4 +628,8 @@ class StickyData {
     public int hashCode() {
         return Objects.hashCode(activityIndex, messagesSent, onlineOnJoin);
     }
+
+    public int getOnlineOnJoin() {
+        return onlineOnJoin;
+    }
 }

Plan/src/main/java/com/djrapitops/plan/data/ServerProfile.java

@@ -340,7 +340,7 @@ public class ServerProfile {
         for (TPS tps : tpsData) {
             long date = tps.getDate();
             int players = tps.getPlayers();
-            if (lastDate != -1) {
+            if (lastDate == -1) {
                 lastDate = date;
                 lastPlayers = players;
                 continue;
@@ -357,4 +357,21 @@ public class ServerProfile {
 
         return idleTime;
     }
+
+    public static double aboveLowThreshold(List<TPS> tpsData) {
+        if (tpsData.isEmpty()) {
+            return 1;
+        }
+
+        int threshold = Settings.THEME_GRAPH_TPS_THRESHOLD_MED.getNumber();
+
+        long count = 0;
+        for (TPS tps : tpsData) {
+            if (tps.getTicksPerSecond() >= threshold) {
+                count++;
+            }
+        }
+
+        return count / tpsData.size();
+    }
 }

Plan/src/main/java/com/djrapitops/plan/utilities/html/Html.java

@@ -30,6 +30,9 @@ public enum Html {
     //
     FONT_AWESOME_ICON("<i class=\"fa fa-${0}\"></i>"),
     FA_COLORED_ICON("<i class=\"col-${0} fa fa-${1}\"></i>"),
+    GREEN_THUMB("<i class=\"fa fa-thumbs-up g\"></i>"),
+    YELLOW_FLAG("<i class=\"fa fa-flag o\"></i>"),
+    RED_WARN("<i class=\"fa fa-exclamation-circle r\"></i>"),
     SPAN("${0}</span>"),
     BUTTON("<a class=\"button\" href=\"${0}\">${1}</a>"),
     BUTTON_CLASS("class=\"button\""),

Plan/src/main/resources/web/js/charts/healthGauge.js

@@ -1,83 +1,101 @@
 function healthGauge(id, healthData) {
-var gaugeOptions = {
+    var gaugeOptions = {
 
-    chart: {
+        chart: {
-        type: 'solidgauge'
+            type: 'solidgauge'
-    },
-
-    title: null,
-
-    pane: {
-        center: ['50%', '85%'],
-        size: '140%',
-        startAngle: -90,
-        endAngle: 90,
-        background: {
-            backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || '#EEE',
-            innerRadius: '60%',
-            outerRadius: '100%',
-            shape: 'arc'
-        }
-    },
-
-    tooltip: {
-        enabled: false
-    },
-
-    // the value axis
-    yAxis: {
-        stops: [
-        		[0.1, '#DF5353'], // red
-            [0.5, '#DDDF0D'], // yellow
-            [0.9, '#55BF3B'] // green            
-        ],
-        lineWidth: 0,
-        minorTickInterval: null,
-        tickAmount: 2,
-        title: {
-            y: -70
         },
-        labels: {
-            y: 16
-        }
-    },
 
-    plotOptions: {
+        title: null,
-        solidgauge: {
+
-            dataLabels: {
+        pane: {
-                y: 5,
+            center: ['50%', '85%'],
-                borderWidth: 0,
+            size: '140%',
-                useHTML: true
+            startAngle: -90,
+            endAngle: 90,
+            background: {
+                backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || '#EEE',
+                innerRadius: '60%',
+                outerRadius: '100%',
+                shape: 'arc'
+            }
+        },
+
+        tooltip: {
+            enabled: false
+        },
+
+        // the value axis
+        yAxis: {
+            stops: [
+                [0.1, '#DF5353'], // red
+                [0.5, '#DDDF0D'], // yellow
+                [0.9, '#55BF3B'] // green
+            ],
+            lineWidth: 0,
+            minorTickInterval: null,
+            tickAmount: 2,
+            title: {
+                y: -70
+            },
+            labels: {
+                y: 16
+            }
+        },
+
+        plotOptions: {
+            solidgauge: {
+                dataLabels: {
+                    y: 5,
+                    borderWidth: 0,
+                    useHTML: true
+                }
             }
         }
-    }
+    };
-};
 
-var chartSpeed = Highcharts.chart(id, Highcharts.merge(gaugeOptions, {
+    var chartSpeed = Highcharts.chart(id, Highcharts.merge(gaugeOptions, {
-    yAxis: {
+        yAxis: {
-        min: 0,
+            min: 0,
-        max: 100,
+            max: 100,
-        title: {
+            title: {
-            text: 'Server Health'
+                text: 'Server Health'
+            },
+            visible: false
         },
-        visible: false
-    },
 
-    credits: {
+        credits: {
-        enabled: false
+            enabled: false
-    },
+        },
 
-    series: [{
+        series: [{
-        name: 'health',
+            name: 'health',
-        data: healthData,
+            data: healthData,
-        dataLabels: {
+            dataLabels: {
-            formatter: function() {
+                formatter: function () {
-        				return '<div style="text-align:center"><span style="font-size:25px;color:' +
+                    return '<div style="text-align:center"><span style="font-size:25px;color:' +
-                  ((Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black') + '">'+(this.y).toFixed(2)+'</span><br/>' +
+                        ((Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black') + '">' + (this.y).toFixed(2) + '</span><br/>' +
-                   '<span style="font-size:12px;color:silver">Very Healthy</span></div>';
+                        '<span style="font-size:12px;color:silver">' + getLabel(this.y) + '</span></div>';
-          }
+                }
-        }
+            }
-    }]
+        }]
 
-}));
+    }));
+}
+
+function getLabel(index) {
+    if (index >= 80) {
+        return 'Very Healthy';
+    }
+    if (index >= 60) {
+        return 'Healthy';
+    }
+    if (index >= 50) {
+        return 'Good';
+    }
+    if (index >= 30) {
+        return 'OK';
+    }
+    if (index >= 0) {
+        return 'Poor';
+    }
 }

Plan/src/main/resources/web/server.html

@@ -584,12 +584,12 @@
                             <div class="header">
                                 <div class="row clearfix">
                                     <div class="col-xs-12 col-sm-6">
-                                        <h2><i class="col-red fa fa-life-ring"></i> Last 14 Days</h2>
+                                        <h2><i class="col-red fa fa-life-ring"></i> Last 30 Days</h2>
                                     </div>
                                 </div>
                             </div>
                             <div class="body bg-white">
-                                <p>${healthNotes} </p>
+                                ${healthNotes}
                             </div>
                         </div>
                     </div>
@@ -934,6 +934,8 @@
 <script src="https://code.highcharts.com/maps/modules/map.js"></script>
 <script src="https://code.highcharts.com/mapdata/custom/world.js"></script>
 <script src="https://code.highcharts.com/modules/drilldown.js"></script>
+<script src="https://code.highcharts.com/highcharts-more.js"></script>
+<script src="https://code.highcharts.com/modules/solid-gauge.js"></script>
 <script src="https://code.highcharts.com/modules/no-data-to-display.js"></script>
 
 <!-- Font Awesome -->
@@ -1103,6 +1105,7 @@
         worldChart('worldGraph', entitySeries, chunkSeries, playersOnlineSeries);
         worldMap('worldMap', '#EEFFEE', '#267f00', mapSeries);
         punchCard('punchCard', punchcardSeries);
+        healthGauge('healthGauge', [${healthIndex}]);
         ${sessionTabGraphViewFunctions}
 
         /**/