New upstream version 1.4.0+dfsgupstream/1.4.0+dfsg

1 files changed, 459 insertions, 71 deletions

diff --git a/web/dashboard.js b/web/dashboard.js
index 67fb00b8b..4dd86391b 100644
--- a/web/dashboard.js
+++ b/web/dashboard.js
@@ -12,11 +12,17 @@
 // var netdataNoBootstrap = true;       // do not load bootstrap
 // var netdataDontStart = true;         // do not start the thread to process the charts
 // var netdataErrorCallback = null;     // Callback function that will be invoked upon error
-// var netdataNoRegistry = true;        // Don't update the registry for this access
+// var netdataRegistry = true;          // Update the registry (default disabled)
 // var netdataRegistryCallback = null;  // Callback function that will be invoked with one param,
 //                                         the URLs from the registry
-// var netdataShowHelp = true;          // enable/disable help
-// var netdataShowAlarms = true;        // enable/disable help
+// var netdataShowHelp = false;         // enable/disable help (default enabled)
+// var netdataShowAlarms = true;        // enable/disable alarms checks and notifications (default disabled)
+//
+// var netdataRegistryAfterMs = 1500    // the time to consult to registry on startup
+//
+// var netdataCallback = null;          // a function to call when netdata is ready
+//                                      // netdata will be running while this is called (call NETDATA.pause to stop it)
+// var netdataPrepCallback = null;      // a callback to be called before netdata does anything else
 //
 // You can also set the default netdata server, using the following.
 // When this variable is not set, we assume the page is hosted on your
@@ -50,6 +56,15 @@
     // global namespace
     var NETDATA = window.NETDATA || {};
 
+    NETDATA.name2id = function(s) {
+        return s
+            .replace(/ /g, '_')
+            .replace(/\(/g, '_')
+            .replace(/\)/g, '_')
+            .replace(/\./g, '_')
+            .replace(/\//g, '_');
+    };
+
     // ----------------------------------------------------------------------------------------------------------------
     // Detect the netdata server
 
@@ -93,25 +108,25 @@
     // default URLs for all the external files we need
     // make them RELATIVE so that the whole thing can also be
     // installed under a web server
-    NETDATA.jQuery              = NETDATA.serverDefault + 'lib/jquery-1.12.0.min.js';
-    NETDATA.peity_js            = NETDATA.serverDefault + 'lib/jquery.peity.min.js';
-    NETDATA.sparkline_js        = NETDATA.serverDefault + 'lib/jquery.sparkline.min.js';
-    NETDATA.easypiechart_js     = NETDATA.serverDefault + 'lib/jquery.easypiechart.min.js';
-    NETDATA.gauge_js            = NETDATA.serverDefault + 'lib/gauge.min.js';
-    NETDATA.dygraph_js          = NETDATA.serverDefault + 'lib/dygraph-combined.js';
-    NETDATA.dygraph_smooth_js   = NETDATA.serverDefault + 'lib/dygraph-smooth-plotter.js';
-    NETDATA.raphael_js          = NETDATA.serverDefault + 'lib/raphael-min.js';
-    NETDATA.morris_js           = NETDATA.serverDefault + 'lib/morris.min.js';
-    NETDATA.d3_js               = NETDATA.serverDefault + 'lib/d3.min.js';
-    NETDATA.c3_js               = NETDATA.serverDefault + 'lib/c3.min.js';
-    NETDATA.c3_css              = NETDATA.serverDefault + 'css/c3.min.css';
-    NETDATA.morris_css          = NETDATA.serverDefault + 'css/morris.css';
+    NETDATA.jQuery              = NETDATA.serverDefault + 'lib/jquery-2.2.4.min.js';
+    NETDATA.peity_js            = NETDATA.serverDefault + 'lib/jquery.peity-3.2.0.min.js';
+    NETDATA.sparkline_js        = NETDATA.serverDefault + 'lib/jquery.sparkline-2.1.2.min.js';
+    NETDATA.easypiechart_js     = NETDATA.serverDefault + 'lib/jquery.easypiechart-97b5824.min.js';
+    NETDATA.gauge_js            = NETDATA.serverDefault + 'lib/gauge-d5260c3.min.js';
+    NETDATA.dygraph_js          = NETDATA.serverDefault + 'lib/dygraph-combined-dd74404.js';
+    NETDATA.dygraph_smooth_js   = NETDATA.serverDefault + 'lib/dygraph-smooth-plotter-dd74404.js';
+    NETDATA.raphael_js          = NETDATA.serverDefault + 'lib/raphael-2.2.4-min.js';
+    NETDATA.c3_js               = NETDATA.serverDefault + 'lib/c3-0.4.11.min.js';
+    NETDATA.c3_css              = NETDATA.serverDefault + 'css/c3-0.4.11.min.css';
+    NETDATA.d3_js               = NETDATA.serverDefault + 'lib/d3-3.5.17.min.js';
+    NETDATA.morris_js           = NETDATA.serverDefault + 'lib/morris-0.5.1.min.js';
+    NETDATA.morris_css          = NETDATA.serverDefault + 'css/morris-0.5.1.css';
     NETDATA.google_js           = 'https://www.google.com/jsapi';
 
     NETDATA.themes = {
         white: {
-            bootstrap_css: NETDATA.serverDefault + 'css/bootstrap.min.css',
-            dashboard_css: NETDATA.serverDefault + 'dashboard.css',
+            bootstrap_css: NETDATA.serverDefault + 'css/bootstrap-3.3.7.min.css',
+            dashboard_css: NETDATA.serverDefault + 'dashboard.css?v20161002-1',
             background: '#FFFFFF',
             foreground: '#000000',
             grid: '#DDDDDD',
@@ -127,12 +142,12 @@
             gauge_gradient: false
         },
         slate: {
-            bootstrap_css: NETDATA.serverDefault + 'css/bootstrap.slate.min.css',
-            dashboard_css: NETDATA.serverDefault + 'dashboard.slate.css',
+            bootstrap_css: NETDATA.serverDefault + 'css/bootstrap.slate.min.css?v20161002-1',
+            dashboard_css: NETDATA.serverDefault + 'dashboard.slate.css?v20161002-1',
             background: '#272b30',
             foreground: '#C8C8C8',
-            grid: '#373b40',
-            axis: '#373b40',
+            grid: '#35393e',
+            axis: '#35393e',
 /*          colors: [   '#55bb33', '#ff2222',   '#0099C6', '#faa11b',   '#adbce0', '#DDDD00',
                         '#4178ba', '#f58122',   '#a5cc39', '#f58667',   '#f5ef89', '#cf93c0',
                         '#a5d18a', '#b8539d',   '#3954a3', '#c8a9cf',   '#c7de8a', '#fad20a',
@@ -155,12 +170,6 @@
     else
         NETDATA.themes.current = NETDATA.themes.white;
 
-    if(typeof netdataShowHelp === 'undefined')
-        netdataShowHelp = true;
-
-    if(typeof netdataShowAlarms === 'undefined')
-        netdataShowAlarms = true;
-
     NETDATA.colors = NETDATA.themes.current.colors;
 
     // these are the colors Google Charts are using
@@ -175,6 +184,25 @@
     //                         (blue)     (red)      (orange)   (green)    (pink)     (brown)    (purple)   (yellow)   (gray)
     //NETDATA.colors        = [ '#5DA5DA', '#F15854', '#FAA43A', '#60BD68', '#F17CB0', '#B2912F', '#B276B2', '#DECF3F', '#4D4D4D' ];
 
+    if(typeof netdataShowHelp === 'undefined')
+        netdataShowHelp = true;
+
+    if(typeof netdataShowAlarms === 'undefined')
+        netdataShowAlarms = false;
+
+    if(typeof netdataRegistryAfterMs !== 'number' || netdataRegistryAfterMs < 0)
+        netdataRegistryAfterMs = 1500;
+
+    if(typeof netdataRegistry === 'undefined') {
+        // backward compatibility
+        if(typeof netdataNoRegistry !== 'undefined' && netdataNoRegistry === false)
+            netdataRegistry = true;
+        else
+            netdataRegistry = false;
+    }
+    if(netdataRegistry === false && typeof netdataRegistryCallback === 'function')
+        netdataRegistry = true;
+
     // ----------------------------------------------------------------------------------------------------------------
     // the defaults for all charts
 
@@ -300,7 +328,9 @@
             pan_and_zoom_factor_multiplier_shift: 3.0,
             pan_and_zoom_factor_multiplier_alt: 4.0,
 
-            abort_ajax_on_scroll: false,
+            abort_ajax_on_scroll: false,            // kill pending ajax page scroll
+            async_on_scroll: false,                 // sync/async onscroll handler
+            onscroll_worker_duration_threshold: 30, // time in ms, to consider slow the onscroll handler
 
             setOptionCallback: function() { ; }
         },
@@ -475,21 +505,29 @@
         NETDATA.onscroll();
     };
 
-    NETDATA.onscroll = function() {
-        // console.log('onscroll');
-
-        NETDATA.options.last_page_scroll = new Date().getTime();
-        NETDATA.options.auto_refresher_stop_until = 0;
+    NETDATA.onscroll_updater_count = 0;
+    NETDATA.onscroll_updater_running = false;
+    NETDATA.onscroll_updater_last_run = 0;
+    NETDATA.onscroll_updater_watchdog = null;
+    NETDATA.onscroll_updater_max_duration = 0;
+    NETDATA.onscroll_updater_above_threshold_count = 0;
+    NETDATA.onscroll_updater = function() {
+        NETDATA.onscroll_updater_running = true;
+        NETDATA.onscroll_updater_count++;
+        var start = new Date().getTime();
 
-        if(NETDATA.options.targets === null) return;
+        var targets = NETDATA.options.targets;
+        var len = targets.length;
 
         // when the user scrolls he sees that we have
         // hidden all the not-visible charts
         // using this little function we try to switch
         // the charts back to visible quickly
-        var targets = NETDATA.options.targets;
-        var len = targets.length;
+
+
         if(NETDATA.options.abort_ajax_on_scroll === true) {
+            // we have to cancel pending requests too
+
             while (len--) {
                 if (targets[len]._updating === true) {
                     if (typeof targets[len].xhr !== 'undefined') {
@@ -502,9 +540,69 @@
             }
         }
         else {
+            // just find which chart is visible
+
             while (len--)
                 targets[len].isVisible();
         }
+
+        var end = new Date().getTime();
+        // console.log('scroll No ' + NETDATA.onscroll_updater_count + ' calculation took ' + (end - start).toString() + ' ms');
+
+        if(NETDATA.options.current.async_on_scroll === false) {
+            var dt = end - start;
+            if(dt > NETDATA.onscroll_updater_max_duration) {
+                // console.log('max onscroll event handler duration increased to ' + dt);
+                NETDATA.onscroll_updater_max_duration = dt;
+            }
+
+            if(dt > NETDATA.options.current.onscroll_worker_duration_threshold) {
+                // console.log('slow: ' + dt);
+                NETDATA.onscroll_updater_above_threshold_count++;
+
+                if(NETDATA.onscroll_updater_above_threshold_count > 2 && NETDATA.onscroll_updater_above_threshold_count * 100 / NETDATA.onscroll_updater_count > 2) {
+                    NETDATA.setOption('async_on_scroll', true);
+                    console.log('NETDATA: your browser is slow - enabling asynchronous onscroll event handler.');
+                }
+            }
+        }
+
+        NETDATA.onscroll_updater_last_run = start;
+        NETDATA.onscroll_updater_running = false;
+    };
+
+    NETDATA.onscroll = function() {
+        // console.log('onscroll');
+
+        NETDATA.options.last_page_scroll = new Date().getTime();
+        NETDATA.options.auto_refresher_stop_until = 0;
+
+        if(NETDATA.options.targets === null) return;
+
+        if(NETDATA.options.current.async_on_scroll === true) {
+            // async
+            if(NETDATA.onscroll_updater_running === false) {
+                NETDATA.onscroll_updater_running = true;
+                setTimeout(NETDATA.onscroll_updater, 0);
+            }
+            else {
+                if(NETDATA.onscroll_updater_watchdog !== null)
+                    clearTimeout(NETDATA.onscroll_updater_watchdog);
+
+                NETDATA.onscroll_updater_watchdog = setTimeout(function() {
+                    if(NETDATA.onscroll_updater_running === false && NETDATA.options.last_page_scroll > NETDATA.onscroll_updater_last_run) {
+                        // console.log('watchdog');
+                        NETDATA.onscroll_updater();
+                    }
+
+                    NETDATA.onscroll_updater_watchdog = null;
+                }, 200);
+            }
+        }
+        else {
+            // sync
+            NETDATA.onscroll_updater();
+        }
     };
 
     window.onresize = NETDATA.onresize;
@@ -530,7 +628,9 @@
         413: { message: "Netdata registry server send invalid response to SWITCH ", alert: false },
         414: { message: "Netdata registry SWITCH failed", alert: false },
         415: { message: "Netdata alarms download failed", alert: false },
-        416: { message: "Netdata alarms log download failed", alert: false }
+        416: { message: "Netdata alarms log download failed", alert: false },
+        417: { message: "Netdata registry server send invalid response to SEARCH ", alert: false },
+        418: { message: "Netdata registry SEARCH failed", alert: false }
     };
     NETDATA.errorLast = {
         code: 0,
@@ -3448,11 +3548,13 @@
         NETDATA.parseDom(NETDATA.chartRefresher);
 
         // Alarms initialization
-        if(netdataShowAlarms === true)
-            setTimeout(NETDATA.alarms.init, 1000);
+        setTimeout(NETDATA.alarms.init, 1000);
 
         // Registry initialization
-        setTimeout(NETDATA.registry.init, 1500);
+        setTimeout(NETDATA.registry.init, netdataRegistryAfterMs);
+
+        if(typeof netdataCallback === 'function')
+            netdataCallback();
     };
 
     // ----------------------------------------------------------------------------------------------------------------
@@ -3857,7 +3959,7 @@
             showLabelsOnHighlight: self.data('dygraph-showlabelsonhighlight') || true,
             hideOverlayOnMouseOut: self.data('dygraph-hideoverlayonmouseout') || true,
 
-            includeZero: self.data('dygraph-includezero') || false,
+            includeZero: self.data('dygraph-includezero') || ((chart_type === 'stacked')? true : false),
             xRangePad: self.data('dygraph-xrangepad') || 0,
             yRangePad: self.data('dygraph-yrangepad') || 1,
 
@@ -3901,10 +4003,8 @@
             axisLineWidth: self.data('dygraph-axislinewidth') || 0.3,
 
             drawGrid: self.data('dygraph-drawgrid') || true,
-            drawXGrid: self.data('dygraph-drawxgrid') || undefined,
-            drawYGrid: self.data('dygraph-drawygrid') || undefined,
             gridLinePattern: self.data('dygraph-gridlinepattern') || null,
-            gridLineWidth: self.data('dygraph-gridlinewidth') || 0.3,
+            gridLineWidth: self.data('dygraph-gridlinewidth') || 0.4,
             gridLineColor: self.data('dygraph-gridlinecolor') || NETDATA.themes.current.grid,
 
             maxNumberWidth: self.data('dygraph-maxnumberwidth') || 8,
@@ -4273,7 +4373,6 @@
             state.dygraph_options.drawGrid = false;
             state.dygraph_options.drawAxis = false;
             state.dygraph_options.title = undefined;
-            state.dygraph_options.units = undefined;
             state.dygraph_options.ylabel = undefined;
             state.dygraph_options.yLabelWidth = 0;
             state.dygraph_options.labelsDivWidth = 120;
@@ -4961,6 +5060,7 @@
         else if(typeof status === 'number')
             speed = status;
 
+        // console.log('gauge speed ' + speed);
         state.gauge_instance.animationSpeed = speed;
         state.___gaugeOld__.speed = speed;
     };
@@ -4994,6 +5094,7 @@
         if(pcent > 100) pcent = 100;
 
         state.gauge_instance.set(pcent);
+        // console.log('gauge set ' + pcent + ', value ' + value + ', min ' + min + ', max ' + max);
 
         state.___gaugeOld__.value = value;
         state.___gaugeOld__.min = min;
@@ -5476,7 +5577,8 @@
 
     NETDATA.requiredJs = [
         {
-            url: NETDATA.serverDefault + 'lib/bootstrap.min.js',
+            url: NETDATA.serverDefault + 'lib/bootstrap-3.3.7.min.js',
+            async: false,
             isAlreadyLoaded: function() {
                 // check if bootstrap is loaded
                 if(typeof $().emulateTransitionEnd == 'function')
@@ -5490,11 +5592,7 @@
             }
         },
         {
-            url: NETDATA.serverDefault + 'lib/jquery.nanoscroller.min.js',
-            isAlreadyLoaded: function() { return false; }
-        },
-        {
-            url: NETDATA.serverDefault + 'lib/bootstrap-toggle.min.js',
+            url: NETDATA.serverDefault + 'lib/jquery.nanoscroller-0.8.7.min.js',
             isAlreadyLoaded: function() { return false; }
         }
     ];
@@ -5510,27 +5608,25 @@
             }
         },
         {
-            url: NETDATA.serverDefault + 'css/font-awesome.min.css',
+            url: NETDATA.serverDefault + 'css/font-awesome.min.css?v4.6.3',
             isAlreadyLoaded: function() { return false; }
         },
         {
             url: NETDATA.themes.current.dashboard_css,
             isAlreadyLoaded: function() { return false; }
-        },
-        {
-            url: NETDATA.serverDefault + 'css/bootstrap-toggle.min.css',
-            isAlreadyLoaded: function() { return false; }
         }
     ];
 
+    NETDATA.loadedRequiredJs = 0;
     NETDATA.loadRequiredJs = function(index, callback) {
-        if(index >= NETDATA.requiredJs.length)  {
+        if(index >= NETDATA.requiredJs.length) {
             if(typeof callback === 'function')
                 callback();
             return;
         }
 
         if(NETDATA.requiredJs[index].isAlreadyLoaded()) {
+            NETDATA.loadedRequiredJs++;
             NETDATA.loadRequiredJs(++index, callback);
             return;
         }
@@ -5538,21 +5634,32 @@
         if(NETDATA.options.debug.main_loop === true)
             console.log('loading ' + NETDATA.requiredJs[index].url);
 
+        var async = true;
+        if(typeof NETDATA.requiredJs[index].async !== 'undefined' && NETDATA.requiredJs[index].async === false)
+            async = false;
+
         $.ajax({
             url: NETDATA.requiredJs[index].url,
             cache: true,
             dataType: "script",
             xhrFields: { withCredentials: true } // required for the cookie
         })
-        .success(function() {
+        .done(function() {
             if(NETDATA.options.debug.main_loop === true)
                 console.log('loaded ' + NETDATA.requiredJs[index].url);
-
-            NETDATA.loadRequiredJs(++index, callback);
         })
         .fail(function() {
             alert('Cannot load required JS library: ' + NETDATA.requiredJs[index].url);
         })
+        .always(function() {
+            NETDATA.loadedRequiredJs++;
+
+            if(async === false)
+                NETDATA.loadRequiredJs(++index, callback);
+        })
+
+        if(async === true)
+            NETDATA.loadRequiredJs(++index, callback);
     };
 
     NETDATA.loadRequiredCSS = function(index) {
@@ -5576,22 +5683,248 @@
     // Registry of netdata hosts
 
     NETDATA.alarms = {
-        current: null,
-        callback: null,
+        onclick: null,                  // the callback to handle the click - it will be called with the alarm log entry
+        chart_div_offset: 100,          // give that space above the chart when scrolling to it
+        chart_div_id_prefix: 'chart_',  // the chart DIV IDs have this prefix (they should be NETDATA.name2id(chart.id))
+        chart_div_animation_duration: 0,// the duration of the animation while scrolling to a chart
+
+        ms_penalty: 0,                  // the time penalty of the next alarm
+        ms_between_notifications: 500,  // firefox moves the alarms off-screen (above, outside the top of the screen)
+                                        // if alarms are shown faster than: one per 500ms
+
+        notifications: false,           // when true, the browser supports notifications (may not be granted though)
+        last_notification_id: 0,        // the id of the last alarm_log we have raised an alarm for
+        first_notification_id: 0,       // the id of the first alarm_log entry for this session
+                                        // this is used to prevent CLEAR notifications for past events
+        // notifications_shown: new Array(),
+
+        server: null,                   // the server to connect to for fetching alarms
+        current: null,                  // the list of raised alarms - updated in the background
+        callback: null,                 // a callback function to call every time the list of raised alarms is refreshed
+
+        notify: function(entry) {
+            // console.log('alarm ' + entry.unique_id);
+
+            if(entry.updated === true) {
+                // console.log('alarm ' + entry.unique_id + ' has been updated by another alarm');
+                return;
+            }
+
+            var value = entry.value;
+            if(NETDATA.alarms.current !== null) {
+                var t = NETDATA.alarms.current.alarms[entry.chart + '.' + entry.name];
+                if(typeof t !== 'undefined' && entry.status == t.status)
+                    value = t.value;
+            }
+
+            var name = entry.name.replace(/_/g, ' ');
+            var status = entry.status.toLowerCase();
+            var title = name + ' = ' + ((value === null)?'NaN':Math.floor(value)).toString() + ' ' + entry.units;
+            var tag = entry.alarm_id;
+            var icon = 'images/seo-performance-128.png';
+            var interaction = false;
+            var data = entry;
+            var show = true;
+
+            // console.log('alarm ' + entry.unique_id + ' ' + entry.chart + '.' + entry.name + ' is ' +  entry.status);
+
+            switch(entry.status) {
+                case 'REMOVED':
+                    show = false;
+                    break;
+
+                case 'UNDEFINED':
+                    return;
+
+                case 'UNINITIALIZED':
+                    return;
+
+                case 'CLEAR':
+                    if(entry.unique_id < NETDATA.alarms.first_notification_id) {
+                        // console.log('alarm ' + entry.unique_id + ' is not current');
+                        return;
+                    }
+                    if(entry.old_status === 'UNINITIALIZED' || entry.old_status === 'UNDEFINED') {
+                        // console.log('alarm' + entry.unique_id + ' switch to CLEAR from ' + entry.old_status);
+                        return;
+                    }
+                    title = name + ' back to normal';
+                    icon = 'images/check-mark-2-128-green.png'
+                    interaction = false;
+                    break;
+
+                case 'WARNING':
+                    if(entry.old_status === 'CRITICAL')
+                        status = 'demoted to ' + entry.status.toLowerCase();
+
+                    icon = 'images/alert-128-orange.png';
+                    interaction = false;
+                    break;
+
+                case 'CRITICAL':
+                    if(entry.old_status === 'WARNING')
+                        status = 'escalated to ' + entry.status.toLowerCase();
+                    
+                    icon = 'images/alert-128-red.png'
+                    interaction = true;
+                    break;
+
+                default:
+                    console.log('invalid alarm status ' + entry.status);
+                    return;
+            }
+
+            /*
+            // cleanup old notifications with the same alarm_id as this one
+            // FIXME: it does not seem to work on any web browser!
+            var len = NETDATA.alarms.notifications_shown.length;
+            while(len--) {
+                var n = NETDATA.alarms.notifications_shown[len];
+                if(n.data.alarm_id === entry.alarm_id) {
+                    console.log('removing old alarm ' + n.data.unique_id);
+
+                    // close the notification
+                    n.close.bind(n);
+
+                    // remove it from the array
+                    NETDATA.alarms.notifications_shown.splice(len, 1);
+                    len = NETDATA.alarms.notifications_shown.length;
+                }
+            }
+            */
+
+            if(show === true) {
+
+                setTimeout(function() {
+                    // show this notification
+                    // console.log('new notification: ' + title);
+                    var n = new Notification(title, {
+                        body: entry.hostname + ' - ' + entry.chart + ' (' + entry.family + ') - ' + status + ': ' + entry.info,
+                        tag: tag,
+                        requireInteraction: interaction,
+                        icon: NETDATA.serverDefault + icon,
+                        data: data
+                    });
+
+                    n.onclick = function(event) {
+                        event.preventDefault();
+                        NETDATA.alarms.onclick(event.target.data);
+                    };
+
+                    // console.log(n);
+                    // NETDATA.alarms.notifications_shown.push(n);
+                    // console.log(entry);
+                }, NETDATA.alarms.ms_penalty);
+
+                NETDATA.alarms.ms_penalty += NETDATA.alarms.ms_between_notifications;
+            }
+        },
+
+        scrollToChart: function(chart_id) {
+            if(typeof chart_id === 'string') {
+                var offset = $('#' + NETDATA.alarms.chart_div_id_prefix + NETDATA.name2id(chart_id)).offset();
+                if(typeof offset !== 'undefined') {
+                    $('html, body').animate({ scrollTop: offset.top - NETDATA.alarms.chart_div_offset }, NETDATA.alarms.chart_div_animation_duration);
+                    return true;
+                }
+            }
+            return false;
+        },
+
+        scrollToAlarm: function(alarm) {
+            if(typeof alarm === 'object') {
+                var ret = NETDATA.alarms.scrollToChart(alarm.chart);
+
+                if(ret === true && NETDATA.options.page_is_visible === false)
+                    window.focus();
+                //    alert('netdata dashboard will now scroll to chart: ' + alarm.chart + '\n\nThis alarm opened to bring the browser window in front of the screen. Click on the dashboard to prevent it from appearing again.');
+            }
+
+        },
+
+        notifyAll: function() {
+            // console.log('FETCHING ALARM LOG');
+            NETDATA.alarms.get_log(NETDATA.alarms.last_notification_id, function(data) {
+                // console.log('ALARM LOG FETCHED');
+
+                if(data === null || typeof data !== 'object') {
+                    console.log('invalid alarms log response');
+                    return;
+                }
+
+                if(data.length === 0) {
+                    console.log('received empty alarm log');
+                    return;
+                }
+
+                // console.log('received alarm log of ' + data.length + ' entries, from ' + data[data.length - 1].unique_id.toString() + ' to ' + data[0].unique_id.toString());
+
+                data.sort(function(a, b) {
+                    if(a.unique_id > b.unique_id) return -1;
+                    if(a.unique_id < b.unique_id) return 1;
+                    return 0;
+                });
+
+                NETDATA.alarms.ms_penalty = 0;
+
+                var len = data.length;
+                while(len--) {
+                    if(data[len].unique_id > NETDATA.alarms.last_notification_id) {
+                        NETDATA.alarms.notify(data[len]);
+                    }
+                    //else
+                    //    console.log('ignoring alarm (older) with id ' + data[len].unique_id.toString());
+                }
+
+                NETDATA.alarms.last_notification_id = data[0].unique_id;
+                NETDATA.localStorageSet('last_notification_id', NETDATA.alarms.last_notification_id, null);
+                // console.log('last notification id = ' + NETDATA.alarms.last_notification_id);
+            })
+        },
+
+        check_notifications: function() {
+            // returns true if we should fire 1+ notifications
+
+            if(NETDATA.alarms.notifications !== true) {
+                // console.log('notifications not available');
+                return false;
+            }
+
+            if(Notification.permission !== 'granted') {
+                // console.log('notifications not granted');
+                return false;
+            }
+
+            if(typeof NETDATA.alarms.current !== 'undefined' && typeof NETDATA.alarms.current.alarms === 'object') {
+                // console.log('can do alarms: old id = ' + NETDATA.alarms.last_notification_id + ' new id = ' + NETDATA.alarms.current.latest_alarm_log_unique_id);
+
+                if(NETDATA.alarms.current.latest_alarm_log_unique_id > NETDATA.alarms.last_notification_id) {
+                    // console.log('new alarms detected');
+                    return true;
+                }
+                //else console.log('no new alarms');
+            }
+            // else console.log('cannot process alarms');
+
+            return false;
+        },
 
         get: function(what, callback) {
             $.ajax({
-                url: NETDATA.serverDefault + '/api/v1/alarms?' + what.toString(),
+                url: NETDATA.alarms.server + '/api/v1/alarms?' + what.toString(),
                 async: true,
                 cache: false,
                 xhrFields: { withCredentials: true } // required for the cookie
             })
                 .done(function(data) {
+                    if(NETDATA.alarms.first_notification_id === 0 && typeof data.latest_alarm_log_unique_id === 'number')
+                        NETDATA.alarms.first_notification_id = data.latest_alarm_log_unique_id;
+
                     if(typeof callback === 'function')
                         callback(data);
                 })
                 .fail(function() {
-                    NETDATA.error(415, host);
+                    NETDATA.error(415, NETDATA.alarms.server);
 
                     if(typeof callback === 'function')
                         callback(null);
@@ -5603,18 +5936,26 @@
                 if(data !== null) {
                     NETDATA.alarms.current = data;
 
+                    if(NETDATA.alarms.check_notifications() === true) {
+                        NETDATA.alarms.notifyAll();
+                    }
+
                     if (typeof NETDATA.alarms.callback === 'function') {
                         NETDATA.alarms.callback(data);
                     }
+
+                    // Health monitoring is disabled on this netdata
+                    if(data.status === false) return;
                 }
 
                 setTimeout(NETDATA.alarms.update_forever, 10000);
             });
         },
 
-        get_log: function(callback) {
+        get_log: function(last_id, callback) {
+            // console.log('fetching all log after ' + last_id.toString());
             $.ajax({
-                url: NETDATA.serverDefault + '/api/v1/alarm_log',
+                url: NETDATA.alarms.server + '/api/v1/alarm_log?after=' + last_id.toString(),
                 async: true,
                 cache: false,
                 xhrFields: { withCredentials: true } // required for the cookie
@@ -5624,7 +5965,7 @@
                         callback(data);
                 })
                 .fail(function() {
-                    NETDATA.error(416, host);
+                    NETDATA.error(416, NETDATA.alarms.server);
 
                     if(typeof callback === 'function')
                         callback(null);
@@ -5632,7 +5973,27 @@
         },
 
         init: function() {
-            NETDATA.alarms.update_forever();
+            var host = NETDATA.serverDefault;
+            while(host.slice(-1) === '/')
+                host = host.substring(0, host.length - 1);
+            NETDATA.alarms.server = host;
+
+            NETDATA.alarms.last_notification_id = NETDATA.localStorageGet('last_notification_id', NETDATA.alarms.last_notification_id, null);
+
+            if(NETDATA.alarms.onclick === null)
+                NETDATA.alarms.onclick = NETDATA.alarms.scrollToAlarm;
+
+            if(netdataShowAlarms === true) {
+                NETDATA.alarms.update_forever();
+            
+                if('Notification' in window) {
+                    // console.log('notifications available');
+                    NETDATA.alarms.notifications = true;
+
+                    if(Notification.permission === 'default')
+                        Notification.requestPermission();
+                }
+            }
         }
     };
 
@@ -5696,8 +6057,7 @@
         },
 
         init: function() {
-            if(typeof netdataNoRegistry !== 'undefined' && netdataNoRegistry)
-                return;
+            if(netdataRegistry !== true) return;
 
             NETDATA.registry.hello(NETDATA.serverDefault, function(data) {
                 if(data) {
@@ -5816,6 +6176,31 @@
                 });
         },
 
+        search: function(machine_guid, callback) {
+            // SEARCH for the URLs of a machine:
+            $.ajax({
+                url: NETDATA.registry.server + '/api/v1/registry?action=search&machine=' + NETDATA.registry.machine_guid + '&name=' + encodeURIComponent(NETDATA.registry.hostname) + '&url=' + encodeURIComponent(NETDATA.serverDefault) + '&for=' + machine_guid,
+                async: true,
+                cache: false,
+                xhrFields: { withCredentials: true } // required for the cookie
+            })
+                .done(function(data) {
+                    if(typeof data.status !== 'string' || data.status !== 'ok') {
+                        NETDATA.error(417, NETDATA.registry.server + ' responded with: ' + JSON.stringify(data));
+                        data = null;
+                    }
+
+                    if(typeof callback === 'function')
+                        callback(data);
+                })
+                .fail(function() {
+                    NETDATA.error(418, NETDATA.registry.server);
+
+                    if(typeof callback === 'function')
+                        callback(null);
+                });
+        },
+
         switch: function(new_person_guid, callback) {
             // impersonate
             $.ajax({
@@ -5845,6 +6230,9 @@
     // ----------------------------------------------------------------------------------------------------------------
     // Boot it!
 
+    if(typeof netdataPrepCallback === 'function')
+        netdataPrepCallback();
+
     NETDATA.errorReset();
     NETDATA.loadRequiredCSS(0);