Imported Upstream version 1.3.0+dfsgupstream/1.3.0+dfsg

1 files changed, 551 insertions, 551 deletions

diff --git a/node.d/named.node.js b/node.d/named.node.js
index c2b15eae..19b8ce29 100644
--- a/node.d/named.node.js
+++ b/node.d/named.node.js
@@ -11,20 +11,20 @@
 
 /*
 {
-	"enable_autodetect": true,
-	"update_every": 5,
-	"servers": [
-		{
-			"name": "bind1",
-			"url": "http://127.0.0.1:8888/json/v1/server",
-			"update_every": 1
-		},
-		{
-			"name": "bind2",
-			"url": "http://10.0.0.1:8888/xml/v3/server",
-			"update_every": 2
-		}
-	]
+    "enable_autodetect": true,
+    "update_every": 5,
+    "servers": [
+        {
+            "name": "bind1",
+            "url": "http://127.0.0.1:8888/json/v1/server",
+            "update_every": 1
+        },
+        {
+            "name": "bind2",
+            "url": "http://10.0.0.1:8888/xml/v3/server",
+            "update_every": 2
+        }
+    ]
 }
 */
 
@@ -44,543 +44,543 @@ var netdata = require('netdata');
 if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');
 
 var named = {
-	name: __filename,
-	enable_autodetect: true,
-	update_every: 1,
-	base_priority: 60000,
-	charts: {},
-
-	chartFromMembersCreate: function(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor) {
-		var chart = {
-			id: id,											// the unique id of the chart
-			name: '',										// the unique name of the chart
-			title: service.name + ' ' + title_suffix,		// the title of the chart
-			units: units,									// the units of the chart dimensions
-			family: family,									// the family of the chart
-			context: context,								// the context of the chart
-			type: type,										// the type of the chart
-			priority: priority,								// the priority relative to others in the same family
-			update_every: service.update_every, 			// the expected update frequency of the chart
-			dimensions: {}
-		}
-
-		var found = 0;
-		for(var x in obj) {
-			if(typeof(obj[x]) !== 'undefined' && obj[x] !== 0) {
-				found++;
-				chart.dimensions[x] = {
-					id: x,					// the unique id of the dimension
-					name: x,				// the name of the dimension
-					algorithm: algorithm,	// the id of the netdata algorithm
-					multiplier: multiplier,	// the multiplier
-					divisor: divisor,		// the divisor
-					hidden: false			// is hidden (boolean)
-				}
-			}
-		}
-
-		if(found === false)
-			return null;
-
-		chart = service.chart(id, chart);
-		this.charts[id] = chart;
-		return chart;
-	},
-
-	chartFromMembers: function(service, obj, id_suffix, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor) {
-		var id = 'named_' + service.name + '.' + id_suffix;
-		var chart = this.charts[id];
-
-		if(typeof chart === 'undefined') {
-			chart = this.chartFromMembersCreate(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor);
-			if(chart === null) return false;
-		}
-		else {
-			// check if we need to re-generate the chart
-			for(var x in obj) {
-				if(typeof(chart.dimensions[x]) === 'undefined') {
-					chart = this.chartFromMembersCreate(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor);
-					if(chart === null) return false;
-					break;
-				}
-			}
-		}
-
-		var found = 0;
-		service.begin(chart);
-		for(var x in obj) {
-			if(typeof(chart.dimensions[x]) !== 'undefined') {
-				found++;
-				service.set(x, obj[x]);
-			}
-		}
-		service.end();
-
-		if(found > 0) return true;
-		return false;
-	},
-
-	// an index to map values to different charts
-	lookups: {
-		nsstats: {},
-		resolver_stats: {},
-		numfetch: {}
-	},
-
-	// transform the XML response of bind
-	// to the JSON response of bind
-	xml2js: function(service, data_xml) {
-		var d = XML.parse(data_xml);
-		if(d === null) return null;
-
-		var data = {};
-		var len = d.server.counters.length;
-		while(len--) {
-			var a = d.server.counters[len];
-			if(typeof a.counter === 'undefined') continue;
-			if(a.type === 'opcode') a.type = 'opcodes';
-			else if(a.type === 'qtype') a.type = 'qtypes';
-			else if(a.type === 'nsstat') a.type = 'nsstats';
-			var aa = data[a.type] = {};
-			var alen = 0
-			var alen2 = a.counter.length;
-			while(alen < alen2) {
-				aa[a.counter[alen].name] = parseInt(a.counter[alen]._Data);
-				alen++;
-			}
-		}
-
-		data.views = {};
-		var vlen = d.views.view.length;
-		while(vlen--) {
-			var vname = d.views.view[vlen].name;
-			data.views[vname] = { resolver: {} };
-			var len = d.views.view[vlen].counters.length;
-			while(len--) {
-				var a = d.views.view[vlen].counters[len];
-				if(typeof a.counter === 'undefined') continue;
-				if(a.type === 'resstats') a.type = 'stats';
-				else if(a.type === 'resqtype') a.type = 'qtypes';
-				else if(a.type === 'adbstat') a.type = 'adb';
-				var aa = data.views[vname].resolver[a.type] = {};
-				var alen = 0;
-				var alen2 = a.counter.length;
-				while(alen < alen2) {
-					aa[a.counter[alen].name] = parseInt(a.counter[alen]._Data);
-					alen++;
-				}
-			}
-		}
-
-		return data;
-	},
-
-	processResponse: function(service, data) {
-		if(data !== null) {
-			var r;
-
-			// parse XML or JSON
-			// pepending on the URL given
-			if(service.request.path.match(/^\/xml/) !== null)
-				r = named.xml2js(service, data);
-			else
-				r = JSON.parse(data);
-
-			if(typeof r === 'undefined' || r === null) {
-				netdata.serviceError(service, "Cannot parse these data: " + data);
-				return;
-			}
-
-			if(service.added !== true)
-				service.commit();
-
-			if(typeof r.nsstats !== 'undefined') {
-				// we split the nsstats object to several others
-				var global_requests = {}, global_requests_enable = false;
-				var global_failures = {}, global_failures_enable = false;
-				var global_failures_detail = {}, global_failures_detail_enable = false;
-				var global_updates = {}, global_updates_enable = false;
-				var protocol_queries = {}, protocol_queries_enable = false;
-				var global_queries = {}, global_queries_enable = false;
-				var global_queries_success = {}, global_queries_success_enable = false;
-				var default_enable = false;
-				var RecursClients = 0;
-
-				// RecursClients is an absolute value
-				if(typeof r.nsstats['RecursClients'] !== 'undefined') {
-					RecursClients = r.nsstats['RecursClients'];
-					delete r.nsstats['RecursClients'];
-				}
-
-				for( var x in r.nsstats ) {
-					// we maintain an index of the values found
-					// mapping them to objects splitted
-
-					var look = named.lookups.nsstats[x];
-					if(typeof look === 'undefined') {
-						// a new value, not found in the index
-						// index it:
-						if(x === 'Requestv4') {
-							named.lookups.nsstats[x] = {
-								name: 'IPv4',
-								type: 'global_requests'
-							};
-						}
-						else if(x === 'Requestv6') {
-							named.lookups.nsstats[x] = {
-								name: 'IPv6',
-								type: 'global_requests'
-							};
-						}
-						else if(x === 'QryFailure') {
-							named.lookups.nsstats[x] = {
-								name: 'failures',
-								type: 'global_failures'
-							};
-						}
-						else if(x === 'QryUDP') {
-							named.lookups.nsstats[x] = {
-								name: 'UDP',
-								type: 'protocol_queries'
-							};
-						}
-						else if(x === 'QryTCP') {
-							named.lookups.nsstats[x] = {
-								name: 'TCP',
-								type: 'protocol_queries'
-							};
-						}
-						else if(x === 'QrySuccess') {
-							named.lookups.nsstats[x] = {
-								name: 'queries',
-								type: 'global_queries_success'
-							};
-						}
-						else if(x.match(/QryRej$/) !== null) {
-							named.lookups.nsstats[x] = {
-								name: x,
-								type: 'global_failures_detail'
-							};
-						}
-						else if(x.match(/^Qry/) !== null) {
-							named.lookups.nsstats[x] = {
-								name: x,
-								type: 'global_queries'
-							};
-						}
-						else if(x.match(/^Update/) !== null) {
-							named.lookups.nsstats[x] = {
-								name: x,
-								type: 'global_updates'
-							};
-						}
-						else {
-							// values not mapped, will remain
-							// in the default map
-							named.lookups.nsstats[x] = {
-								name: x,
-								type: 'default'
-							};
-						}
-
-						look = named.lookups.nsstats[x];
-						// netdata.error('lookup nsstats value: ' + x + ' >>> ' + named.lookups.nsstats[x].type);
-					}
-
-					switch(look.type) {
-						case 'global_requests': global_requests[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_requests_enable = true; break;
-						case 'global_queries': global_queries[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_queries_enable = true; break;
-						case 'global_queries_success': global_queries_success[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_queries_success_enable = true; break;
-						case 'global_updates': global_updates[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_updates_enable = true; break;
-						case 'protocol_queries': protocol_queries[look.name] = r.nsstats[x]; delete r.nsstats[x]; protocol_queries_enable = true; break;
-						case 'global_failures': global_failures[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_failures_enable = true; break;
-						case 'global_failures_detail': global_failures_detail[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_failures_detail_enable = true; break;
-						default: default_enable = true; break;
-					}
-				}
-
-				if(global_requests_enable == true)
-					service.module.chartFromMembers(service, global_requests, 'received_requests', 'Bind, Global Received Requests by IP version', 'requests/s', 'requests', 'named.requests', netdata.chartTypes.stacked, named.base_priority + 1, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(global_queries_success_enable == true)
-					service.module.chartFromMembers(service, global_queries_success, 'global_queries_success', 'Bind, Global Successful Queries', 'queries/s', 'queries', 'named.queries.succcess', netdata.chartTypes.line, named.base_priority + 2, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(protocol_queries_enable == true)
-					service.module.chartFromMembers(service, protocol_queries, 'protocols_queries', 'Bind, Global Queries by IP Protocol', 'queries/s', 'queries', 'named.protocol.queries', netdata.chartTypes.stacked, named.base_priority + 3, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(global_queries_enable == true)
-					service.module.chartFromMembers(service, global_queries, 'global_queries', 'Bind, Global Queries Analysis', 'queries/s', 'queries', 'named.global.queries', netdata.chartTypes.stacked, named.base_priority + 4, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(global_updates_enable == true)
-					service.module.chartFromMembers(service, global_updates, 'received_updates', 'Bind, Global Received Updates', 'updates/s', 'updates', 'named.global.updates', netdata.chartTypes.stacked, named.base_priority + 5, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(global_failures_enable == true)
-					service.module.chartFromMembers(service, global_failures, 'query_failures', 'Bind, Global Query Failures', 'failures/s', 'failures', 'named.global.failures', netdata.chartTypes.line, named.base_priority + 6, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(global_failures_detail_enable == true)
-					service.module.chartFromMembers(service, global_failures_detail, 'query_failures_detail', 'Bind, Global Query Failures Analysis', 'failures/s', 'failures', 'named.global.failures.detail', netdata.chartTypes.stacked, named.base_priority + 7, netdata.chartAlgorithms.incremental, 1, 1);
-
-				if(default_enable === true)
-					service.module.chartFromMembers(service, r.nsstats, 'nsstats', 'Bind, Other Global Server Statistics', 'operations/s', 'other', 'named.nsstats', netdata.chartTypes.line, named.base_priority + 8, netdata.chartAlgorithms.incremental, 1, 1);
-
-				// RecursClients chart
-				{
-					var id = 'named_' + service.name + '.recursive_clients';
-					var chart = named.charts[id];
-
-					if(typeof chart === 'undefined') {
-						chart = {
-							id: id,											// the unique id of the chart
-							name: '',										// the unique name of the chart
-							title: service.name + ' Bind, Current Recursive Clients',		// the title of the chart
-							units: 'clients',								// the units of the chart dimensions
-							family: 'clients',								// the family of the chart
-							context: 'named.recursive.clients',				// the context of the chart
-							type: netdata.chartTypes.line,					// the type of the chart
-							priority: named.base_priority + 1,				// the priority relative to others in the same family
-							update_every: service.update_every,				// the expected update frequency of the chart
-							dimensions: {
-								'clients': {
-									id: 'clients',								// the unique id of the dimension
-									name: '',									// the name of the dimension
-									algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
-									multiplier: 1,								// the multiplier
-									divisor: 1,									// the divisor
-									hidden: false								// is hidden (boolean)
-								}
-							}
-						};
-
-						chart = service.chart(id, chart);
-						named.charts[id] = chart;
-					}
-
-					service.begin(chart);
-					service.set('clients', RecursClients);
-					service.end();
-				}
-			}
-
-			if(typeof r.opcodes !== 'undefined')
-				service.module.chartFromMembers(service, r.opcodes, 'in_opcodes', 'Bind, Global Incoming Requests by OpCode', 'requests/s', 'requests', 'named.in.opcodes', netdata.chartTypes.stacked, named.base_priority + 9, netdata.chartAlgorithms.incremental, 1, 1);
-
-			if(typeof r.qtypes !== 'undefined')
-				service.module.chartFromMembers(service, r.qtypes, 'in_qtypes', 'Bind, Global Incoming Requests by Query Type', 'requests/s', 'requests', 'named.in.qtypes', netdata.chartTypes.stacked, named.base_priority + 10, netdata.chartAlgorithms.incremental, 1, 1);
-
-			if(typeof r.sockstats !== 'undefined')
-				service.module.chartFromMembers(service, r.sockstats, 'in_sockstats', 'Bind, Global Socket Statistics', 'operations/s', 'sockets', 'named.in.sockstats', netdata.chartTypes.line, named.base_priority + 11, netdata.chartAlgorithms.incremental, 1, 1);
-
-			if(typeof r.views !== 'undefined') {
-				for( var x in r.views ) {
-					var resolver = r.views[x].resolver;
-
-					if(typeof resolver !== 'undefined') {
-						if(typeof resolver.stats !== 'undefined') {
-							var NumFetch = 0;
-							var key = service.name + '.' + x;
-							var default_enable = false;
-							var rtt = {}, rtt_enable = false;
-
-							// NumFetch is an absolute value
-							if(typeof resolver.stats['NumFetch'] !== 'undefined') {
-								named.lookups.numfetch[key] = true;
-								NumFetch = resolver.stats['NumFetch'];
-								delete resolver.stats['NumFetch'];
-							}
-							if(typeof resolver.stats['BucketSize'] !== 'undefined') {
-								delete resolver.stats['BucketSize'];
-							}
-
-							// split the QryRTT* from the main chart
-							for( var y in resolver.stats ) {
-								// we maintain an index of the values found
-								// mapping them to objects splitted
-
-								var look = named.lookups.resolver_stats[y];
-								if(typeof look === 'undefined') {
-									if(y.match(/^QryRTT/) !== null) {
-										named.lookups.resolver_stats[y] = {
-											name: y,
-											type: 'rtt'
-										};
-									}
-									else {
-										named.lookups.resolver_stats[y] = {
-											name: y,
-											type: 'default'
-										};
-									}
-
-									look = named.lookups.resolver_stats[y];
-									// netdata.error('lookup resolver stats value: ' + y + ' >>> ' + look.type);
-								}
-
-								switch(look.type) {
-									case 'rtt': rtt[look.name] = resolver.stats[y]; delete resolver.stats[y]; rtt_enable = true; break;
-									default: default_enable = true; break;
-								}
-							}
-
-							if(rtt_enable)
-								service.module.chartFromMembers(service, rtt, 'view_resolver_rtt_' + x, 'Bind, ' + x + ' View, Resolver Round Trip Timings', 'queries/s', 'view_' + x, 'named.resolver.rtt', netdata.chartTypes.stacked, named.base_priority + 12, netdata.chartAlgorithms.incremental, 1, 1);
-
-							if(default_enable)
-								service.module.chartFromMembers(service, resolver.stats, 'view_resolver_stats_' + x, 'Bind, ' + x + ' View, Resolver Statistics', 'operations/s', 'view_' + x, 'named.resolver.stats', netdata.chartTypes.line, named.base_priority + 13, netdata.chartAlgorithms.incremental, 1, 1);
-
-							// NumFetch chart
-							if(typeof named.lookups.numfetch[key] !== 'undefined') {
-								var id = 'named_' + service.name + '.view_resolver_numfetch_' + x;
-								var chart = named.charts[id];
-
-								if(typeof chart === 'undefined') {
-									chart = {
-										id: id,											// the unique id of the chart
-										name: '',										// the unique name of the chart
-										title: service.name + ' Bind, ' + x + ' View, Resolver Active Queries',		// the title of the chart
-										units: 'queries',								// the units of the chart dimensions
-										family: 'view_' + x,							// the family of the chart
-										context: 'named.resolver.active.queries',		// the context of the chart
-										type: netdata.chartTypes.line,					// the type of the chart
-										priority: named.base_priority + 1001,			// the priority relative to others in the same family
-										update_every: service.update_every,				// the expected update frequency of the chart
-										dimensions: {
-											'queries': {
-												id: 'queries',								// the unique id of the dimension
-												name: '',									// the name of the dimension
-												algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
-												multiplier: 1,								// the multiplier
-												divisor: 1,									// the divisor
-												hidden: false								// is hidden (boolean)
-											}
-										}
-									};
-
-									chart = service.chart(id, chart);
-									named.charts[id] = chart;
-								}
-
-								service.begin(chart);
-								service.set('queries', NumFetch);
-								service.end();
-							}
-						}
-					}
-
-					if(typeof resolver.qtypes !== 'undefined')
-						service.module.chartFromMembers(service, resolver.qtypes, 'view_resolver_qtypes_' + x, 'Bind, ' + x + ' View, Requests by Query Type', 'requests/s', 'view_' + x, 'named.resolver.qtypes', netdata.chartTypes.stacked, named.base_priority + 14, netdata.chartAlgorithms.incremental, 1, 1);
-
-					//if(typeof resolver.cache !== 'undefined')
-					//	service.module.chartFromMembers(service, resolver.cache, 'view_resolver_cache_' + x, 'Bind, ' + x + ' View, Cache Entries', 'entries', 'view_' + x, 'named.resolver.cache', netdata.chartTypes.stacked, named.base_priority + 15, netdata.chartAlgorithms.absolute, 1, 1);
-
-					if(typeof resolver.cachestats['CacheHits'] !== 'undefined' && resolver.cachestats['CacheHits'] > 0) {
-						var id = 'named_' + service.name + '.view_resolver_cachehits_' + x;
-						var chart = named.charts[id];
-
-						if(typeof chart === 'undefined') {
-							chart = {
-								id: id,											// the unique id of the chart
-								name: '',										// the unique name of the chart
-								title: service.name + ' Bind, ' + x + ' View, Resolver Cache Hits',		// the title of the chart
-								units: 'operations/s',							// the units of the chart dimensions
-								family: 'view_' + x,							// the family of the chart
-								context: 'named.resolver.cache.hits',			// the context of the chart
-								type: netdata.chartTypes.area,					// the type of the chart
-								priority: named.base_priority + 1100,			// the priority relative to others in the same family
-								update_every: service.update_every,				// the expected update frequency of the chart
-								dimensions: {
-									'CacheHits': {
-										id: 'CacheHits',							// the unique id of the dimension
-										name: 'hits',								// the name of the dimension
-										algorithm: netdata.chartAlgorithms.incremental,// the id of the netdata algorithm
-										multiplier: 1,								// the multiplier
-										divisor: 1,									// the divisor
-										hidden: false								// is hidden (boolean)
-									},
-									'CacheMisses': {
-										id: 'CacheMisses',							// the unique id of the dimension
-										name: 'misses',								// the name of the dimension
-										algorithm: netdata.chartAlgorithms.incremental,// the id of the netdata algorithm
-										multiplier: -1,								// the multiplier
-										divisor: 1,									// the divisor
-										hidden: false								// is hidden (boolean)
-									}
-								}
-							};
-
-							chart = service.chart(id, chart);
-							named.charts[id] = chart;
-						}
-
-						service.begin(chart);
-						service.set('CacheHits', resolver.cachestats['CacheHits']);
-						service.set('CacheMisses', resolver.cachestats['CacheMisses']);
-						service.end();
-					}
-
-					// this is wrong, it contains many types of info:
-					// 1. CacheHits, CacheMisses - incremental (added above)
-					// 2. QueryHits, QueryMisses - incremental
-					// 3. DeleteLRU, DeleteTTL - incremental
-					// 4. CacheNodes, CacheBuckets - absolute
-					// 5. TreeMemTotal, TreeMemInUse - absolute
-					// 6. HeapMemMax, HeapMemTotal, HeapMemInUse - absolute
-					//if(typeof resolver.cachestats !== 'undefined')
-					//	service.module.chartFromMembers(service, resolver.cachestats, 'view_resolver_cachestats_' + x, 'Bind, ' + x + ' View, Cache Statistics', 'requests/s', 'view_' + x, 'named.resolver.cache.stats', netdata.chartTypes.line, named.base_priority + 1001, netdata.chartAlgorithms.incremental, 1, 1);
-
-					//if(typeof resolver.adb !== 'undefined')
-					//	service.module.chartFromMembers(service, resolver.adb, 'view_resolver_adb_' + x, 'Bind, ' + x + ' View, ADB Statistics', 'entries', 'view_' + x, 'named.resolver.adb', netdata.chartTypes.line, named.base_priority + 1002, netdata.chartAlgorithms.absolute, 1, 1);
-				}
-			}
-		}
-	},
-
-	// module.serviceExecute()
-	// this function is called only from this module
-	// its purpose is to prepare the request and call
-	// netdata.serviceExecute()
-	serviceExecute: function(name, a_url, update_every) {
-		if(netdata.options.DEBUG === true) netdata.debug(this.name + ': ' + name + ': url: ' + a_url + ', update_every: ' + update_every);
-		var service = netdata.service({
-			name: name,
-			request: netdata.requestFromURL(a_url),
-			update_every: update_every,
-			module: this
-		});
-
-		service.execute(this.processResponse);
-	},
-
-	configure: function(config) {
-		var added = 0;
-
-		if(this.enable_autodetect === true) {
-			this.serviceExecute('local', 'http://localhost:8888/json/v1/server', this.update_every);
-			added++;
-		}
-		
-		if(typeof(config.servers) !== 'undefined') {
-			var len = config.servers.length;
-			while(len--) {
-				if(typeof config.servers[len].update_every === 'undefined')
-					config.servers[len].update_every = this.update_every;
-
-				this.serviceExecute(config.servers[len].name, config.servers[len].url, config.servers[len].update_every);
-				added++;
-			}
-		}
-
-		return added;
-	},
-
-	// module.update()
-	// this is called repeatidly to collect data, by calling
-	// netdata.serviceExecute()
-	update: function(service, callback) {
-		service.execute(function(serv, data) {
-			service.module.processResponse(serv, data);
-			callback();
-		});
-	},
+    name: __filename,
+    enable_autodetect: true,
+    update_every: 1,
+    base_priority: 60000,
+    charts: {},
+
+    chartFromMembersCreate: function(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor) {
+        var chart = {
+            id: id,                                         // the unique id of the chart
+            name: '',                                       // the unique name of the chart
+            title: service.name + ' ' + title_suffix,       // the title of the chart
+            units: units,                                   // the units of the chart dimensions
+            family: family,                                 // the family of the chart
+            context: context,                               // the context of the chart
+            type: type,                                     // the type of the chart
+            priority: priority,                             // the priority relative to others in the same family
+            update_every: service.update_every,             // the expected update frequency of the chart
+            dimensions: {}
+        }
+
+        var found = 0;
+        for(var x in obj) {
+            if(typeof(obj[x]) !== 'undefined' && obj[x] !== 0) {
+                found++;
+                chart.dimensions[x] = {
+                    id: x,                  // the unique id of the dimension
+                    name: x,                // the name of the dimension
+                    algorithm: algorithm,   // the id of the netdata algorithm
+                    multiplier: multiplier, // the multiplier
+                    divisor: divisor,       // the divisor
+                    hidden: false           // is hidden (boolean)
+                }
+            }
+        }
+
+        if(found === false)
+            return null;
+
+        chart = service.chart(id, chart);
+        this.charts[id] = chart;
+        return chart;
+    },
+
+    chartFromMembers: function(service, obj, id_suffix, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor) {
+        var id = 'named_' + service.name + '.' + id_suffix;
+        var chart = this.charts[id];
+
+        if(typeof chart === 'undefined') {
+            chart = this.chartFromMembersCreate(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor);
+            if(chart === null) return false;
+        }
+        else {
+            // check if we need to re-generate the chart
+            for(var x in obj) {
+                if(typeof(chart.dimensions[x]) === 'undefined') {
+                    chart = this.chartFromMembersCreate(service, obj, id, title_suffix, units, family, context, type, priority, algorithm, multiplier, divisor);
+                    if(chart === null) return false;
+                    break;
+                }
+            }
+        }
+
+        var found = 0;
+        service.begin(chart);
+        for(var x in obj) {
+            if(typeof(chart.dimensions[x]) !== 'undefined') {
+                found++;
+                service.set(x, obj[x]);
+            }
+        }
+        service.end();
+
+        if(found > 0) return true;
+        return false;
+    },
+
+    // an index to map values to different charts
+    lookups: {
+        nsstats: {},
+        resolver_stats: {},
+        numfetch: {}
+    },
+
+    // transform the XML response of bind
+    // to the JSON response of bind
+    xml2js: function(service, data_xml) {
+        var d = XML.parse(data_xml);
+        if(d === null) return null;
+
+        var data = {};
+        var len = d.server.counters.length;
+        while(len--) {
+            var a = d.server.counters[len];
+            if(typeof a.counter === 'undefined') continue;
+            if(a.type === 'opcode') a.type = 'opcodes';
+            else if(a.type === 'qtype') a.type = 'qtypes';
+            else if(a.type === 'nsstat') a.type = 'nsstats';
+            var aa = data[a.type] = {};
+            var alen = 0
+            var alen2 = a.counter.length;
+            while(alen < alen2) {
+                aa[a.counter[alen].name] = parseInt(a.counter[alen]._Data);
+                alen++;
+            }
+        }
+
+        data.views = {};
+        var vlen = d.views.view.length;
+        while(vlen--) {
+            var vname = d.views.view[vlen].name;
+            data.views[vname] = { resolver: {} };
+            var len = d.views.view[vlen].counters.length;
+            while(len--) {
+                var a = d.views.view[vlen].counters[len];
+                if(typeof a.counter === 'undefined') continue;
+                if(a.type === 'resstats') a.type = 'stats';
+                else if(a.type === 'resqtype') a.type = 'qtypes';
+                else if(a.type === 'adbstat') a.type = 'adb';
+                var aa = data.views[vname].resolver[a.type] = {};
+                var alen = 0;
+                var alen2 = a.counter.length;
+                while(alen < alen2) {
+                    aa[a.counter[alen].name] = parseInt(a.counter[alen]._Data);
+                    alen++;
+                }
+            }
+        }
+
+        return data;
+    },
+
+    processResponse: function(service, data) {
+        if(data !== null) {
+            var r;
+
+            // parse XML or JSON
+            // pepending on the URL given
+            if(service.request.path.match(/^\/xml/) !== null)
+                r = named.xml2js(service, data);
+            else
+                r = JSON.parse(data);
+
+            if(typeof r === 'undefined' || r === null) {
+                netdata.serviceError(service, "Cannot parse these data: " + data);
+                return;
+            }
+
+            if(service.added !== true)
+                service.commit();
+
+            if(typeof r.nsstats !== 'undefined') {
+                // we split the nsstats object to several others
+                var global_requests = {}, global_requests_enable = false;
+                var global_failures = {}, global_failures_enable = false;
+                var global_failures_detail = {}, global_failures_detail_enable = false;
+                var global_updates = {}, global_updates_enable = false;
+                var protocol_queries = {}, protocol_queries_enable = false;
+                var global_queries = {}, global_queries_enable = false;
+                var global_queries_success = {}, global_queries_success_enable = false;
+                var default_enable = false;
+                var RecursClients = 0;
+
+                // RecursClients is an absolute value
+                if(typeof r.nsstats['RecursClients'] !== 'undefined') {
+                    RecursClients = r.nsstats['RecursClients'];
+                    delete r.nsstats['RecursClients'];
+                }
+
+                for( var x in r.nsstats ) {
+                    // we maintain an index of the values found
+                    // mapping them to objects splitted
+
+                    var look = named.lookups.nsstats[x];
+                    if(typeof look === 'undefined') {
+                        // a new value, not found in the index
+                        // index it:
+                        if(x === 'Requestv4') {
+                            named.lookups.nsstats[x] = {
+                                name: 'IPv4',
+                                type: 'global_requests'
+                            };
+                        }
+                        else if(x === 'Requestv6') {
+                            named.lookups.nsstats[x] = {
+                                name: 'IPv6',
+                                type: 'global_requests'
+                            };
+                        }
+                        else if(x === 'QryFailure') {
+                            named.lookups.nsstats[x] = {
+                                name: 'failures',
+                                type: 'global_failures'
+                            };
+                        }
+                        else if(x === 'QryUDP') {
+                            named.lookups.nsstats[x] = {
+                                name: 'UDP',
+                                type: 'protocol_queries'
+                            };
+                        }
+                        else if(x === 'QryTCP') {
+                            named.lookups.nsstats[x] = {
+                                name: 'TCP',
+                                type: 'protocol_queries'
+                            };
+                        }
+                        else if(x === 'QrySuccess') {
+                            named.lookups.nsstats[x] = {
+                                name: 'queries',
+                                type: 'global_queries_success'
+                            };
+                        }
+                        else if(x.match(/QryRej$/) !== null) {
+                            named.lookups.nsstats[x] = {
+                                name: x,
+                                type: 'global_failures_detail'
+                            };
+                        }
+                        else if(x.match(/^Qry/) !== null) {
+                            named.lookups.nsstats[x] = {
+                                name: x,
+                                type: 'global_queries'
+                            };
+                        }
+                        else if(x.match(/^Update/) !== null) {
+                            named.lookups.nsstats[x] = {
+                                name: x,
+                                type: 'global_updates'
+                            };
+                        }
+                        else {
+                            // values not mapped, will remain
+                            // in the default map
+                            named.lookups.nsstats[x] = {
+                                name: x,
+                                type: 'default'
+                            };
+                        }
+
+                        look = named.lookups.nsstats[x];
+                        // netdata.error('lookup nsstats value: ' + x + ' >>> ' + named.lookups.nsstats[x].type);
+                    }
+
+                    switch(look.type) {
+                        case 'global_requests': global_requests[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_requests_enable = true; break;
+                        case 'global_queries': global_queries[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_queries_enable = true; break;
+                        case 'global_queries_success': global_queries_success[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_queries_success_enable = true; break;
+                        case 'global_updates': global_updates[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_updates_enable = true; break;
+                        case 'protocol_queries': protocol_queries[look.name] = r.nsstats[x]; delete r.nsstats[x]; protocol_queries_enable = true; break;
+                        case 'global_failures': global_failures[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_failures_enable = true; break;
+                        case 'global_failures_detail': global_failures_detail[look.name] = r.nsstats[x]; delete r.nsstats[x]; global_failures_detail_enable = true; break;
+                        default: default_enable = true; break;
+                    }
+                }
+
+                if(global_requests_enable == true)
+                    service.module.chartFromMembers(service, global_requests, 'received_requests', 'Bind, Global Received Requests by IP version', 'requests/s', 'requests', 'named.requests', netdata.chartTypes.stacked, named.base_priority + 1, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(global_queries_success_enable == true)
+                    service.module.chartFromMembers(service, global_queries_success, 'global_queries_success', 'Bind, Global Successful Queries', 'queries/s', 'queries', 'named.queries_succcess', netdata.chartTypes.line, named.base_priority + 2, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(protocol_queries_enable == true)
+                    service.module.chartFromMembers(service, protocol_queries, 'protocols_queries', 'Bind, Global Queries by IP Protocol', 'queries/s', 'queries', 'named.protocol_queries', netdata.chartTypes.stacked, named.base_priority + 3, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(global_queries_enable == true)
+                    service.module.chartFromMembers(service, global_queries, 'global_queries', 'Bind, Global Queries Analysis', 'queries/s', 'queries', 'named.global_queries', netdata.chartTypes.stacked, named.base_priority + 4, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(global_updates_enable == true)
+                    service.module.chartFromMembers(service, global_updates, 'received_updates', 'Bind, Global Received Updates', 'updates/s', 'updates', 'named.global_updates', netdata.chartTypes.stacked, named.base_priority + 5, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(global_failures_enable == true)
+                    service.module.chartFromMembers(service, global_failures, 'query_failures', 'Bind, Global Query Failures', 'failures/s', 'failures', 'named.global_failures', netdata.chartTypes.line, named.base_priority + 6, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(global_failures_detail_enable == true)
+                    service.module.chartFromMembers(service, global_failures_detail, 'query_failures_detail', 'Bind, Global Query Failures Analysis', 'failures/s', 'failures', 'named.global_failures_detail', netdata.chartTypes.stacked, named.base_priority + 7, netdata.chartAlgorithms.incremental, 1, 1);
+
+                if(default_enable === true)
+                    service.module.chartFromMembers(service, r.nsstats, 'nsstats', 'Bind, Other Global Server Statistics', 'operations/s', 'other', 'named.nsstats', netdata.chartTypes.line, named.base_priority + 8, netdata.chartAlgorithms.incremental, 1, 1);
+
+                // RecursClients chart
+                {
+                    var id = 'named_' + service.name + '.recursive_clients';
+                    var chart = named.charts[id];
+
+                    if(typeof chart === 'undefined') {
+                        chart = {
+                            id: id,                                         // the unique id of the chart
+                            name: '',                                       // the unique name of the chart
+                            title: service.name + ' Bind, Current Recursive Clients',       // the title of the chart
+                            units: 'clients',                               // the units of the chart dimensions
+                            family: 'clients',                              // the family of the chart
+                            context: 'named.recursive_clients',             // the context of the chart
+                            type: netdata.chartTypes.line,                  // the type of the chart
+                            priority: named.base_priority + 1,              // the priority relative to others in the same family
+                            update_every: service.update_every,             // the expected update frequency of the chart
+                            dimensions: {
+                                'clients': {
+                                    id: 'clients',                              // the unique id of the dimension
+                                    name: '',                                   // the name of the dimension
+                                    algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+                                    multiplier: 1,                              // the multiplier
+                                    divisor: 1,                                 // the divisor
+                                    hidden: false                               // is hidden (boolean)
+                                }
+                            }
+                        };
+
+                        chart = service.chart(id, chart);
+                        named.charts[id] = chart;
+                    }
+
+                    service.begin(chart);
+                    service.set('clients', RecursClients);
+                    service.end();
+                }
+            }
+
+            if(typeof r.opcodes !== 'undefined')
+                service.module.chartFromMembers(service, r.opcodes, 'in_opcodes', 'Bind, Global Incoming Requests by OpCode', 'requests/s', 'requests', 'named.in_opcodes', netdata.chartTypes.stacked, named.base_priority + 9, netdata.chartAlgorithms.incremental, 1, 1);
+
+            if(typeof r.qtypes !== 'undefined')
+                service.module.chartFromMembers(service, r.qtypes, 'in_qtypes', 'Bind, Global Incoming Requests by Query Type', 'requests/s', 'requests', 'named.in_qtypes', netdata.chartTypes.stacked, named.base_priority + 10, netdata.chartAlgorithms.incremental, 1, 1);
+
+            if(typeof r.sockstats !== 'undefined')
+                service.module.chartFromMembers(service, r.sockstats, 'in_sockstats', 'Bind, Global Socket Statistics', 'operations/s', 'sockets', 'named.in_sockstats', netdata.chartTypes.line, named.base_priority + 11, netdata.chartAlgorithms.incremental, 1, 1);
+
+            if(typeof r.views !== 'undefined') {
+                for( var x in r.views ) {
+                    var resolver = r.views[x].resolver;
+
+                    if(typeof resolver !== 'undefined') {
+                        if(typeof resolver.stats !== 'undefined') {
+                            var NumFetch = 0;
+                            var key = service.name + '.' + x;
+                            var default_enable = false;
+                            var rtt = {}, rtt_enable = false;
+
+                            // NumFetch is an absolute value
+                            if(typeof resolver.stats['NumFetch'] !== 'undefined') {
+                                named.lookups.numfetch[key] = true;
+                                NumFetch = resolver.stats['NumFetch'];
+                                delete resolver.stats['NumFetch'];
+                            }
+                            if(typeof resolver.stats['BucketSize'] !== 'undefined') {
+                                delete resolver.stats['BucketSize'];
+                            }
+
+                            // split the QryRTT* from the main chart
+                            for( var y in resolver.stats ) {
+                                // we maintain an index of the values found
+                                // mapping them to objects splitted
+
+                                var look = named.lookups.resolver_stats[y];
+                                if(typeof look === 'undefined') {
+                                    if(y.match(/^QryRTT/) !== null) {
+                                        named.lookups.resolver_stats[y] = {
+                                            name: y,
+                                            type: 'rtt'
+                                        };
+                                    }
+                                    else {
+                                        named.lookups.resolver_stats[y] = {
+                                            name: y,
+                                            type: 'default'
+                                        };
+                                    }
+
+                                    look = named.lookups.resolver_stats[y];
+                                    // netdata.error('lookup resolver stats value: ' + y + ' >>> ' + look.type);
+                                }
+
+                                switch(look.type) {
+                                    case 'rtt': rtt[look.name] = resolver.stats[y]; delete resolver.stats[y]; rtt_enable = true; break;
+                                    default: default_enable = true; break;
+                                }
+                            }
+
+                            if(rtt_enable)
+                                service.module.chartFromMembers(service, rtt, 'view_resolver_rtt_' + x, 'Bind, ' + x + ' View, Resolver Round Trip Timings', 'queries/s', 'view_' + x, 'named.resolver_rtt', netdata.chartTypes.stacked, named.base_priority + 12, netdata.chartAlgorithms.incremental, 1, 1);
+
+                            if(default_enable)
+                                service.module.chartFromMembers(service, resolver.stats, 'view_resolver_stats_' + x, 'Bind, ' + x + ' View, Resolver Statistics', 'operations/s', 'view_' + x, 'named.resolver_stats', netdata.chartTypes.line, named.base_priority + 13, netdata.chartAlgorithms.incremental, 1, 1);
+
+                            // NumFetch chart
+                            if(typeof named.lookups.numfetch[key] !== 'undefined') {
+                                var id = 'named_' + service.name + '.view_resolver_numfetch_' + x;
+                                var chart = named.charts[id];
+
+                                if(typeof chart === 'undefined') {
+                                    chart = {
+                                        id: id,                                         // the unique id of the chart
+                                        name: '',                                       // the unique name of the chart
+                                        title: service.name + ' Bind, ' + x + ' View, Resolver Active Queries',     // the title of the chart
+                                        units: 'queries',                               // the units of the chart dimensions
+                                        family: 'view_' + x,                            // the family of the chart
+                                        context: 'named.resolver_active_queries',       // the context of the chart
+                                        type: netdata.chartTypes.line,                  // the type of the chart
+                                        priority: named.base_priority + 1001,           // the priority relative to others in the same family
+                                        update_every: service.update_every,             // the expected update frequency of the chart
+                                        dimensions: {
+                                            'queries': {
+                                                id: 'queries',                              // the unique id of the dimension
+                                                name: '',                                   // the name of the dimension
+                                                algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+                                                multiplier: 1,                              // the multiplier
+                                                divisor: 1,                                 // the divisor
+                                                hidden: false                               // is hidden (boolean)
+                                            }
+                                        }
+                                    };
+
+                                    chart = service.chart(id, chart);
+                                    named.charts[id] = chart;
+                                }
+
+                                service.begin(chart);
+                                service.set('queries', NumFetch);
+                                service.end();
+                            }
+                        }
+                    }
+
+                    if(typeof resolver.qtypes !== 'undefined')
+                        service.module.chartFromMembers(service, resolver.qtypes, 'view_resolver_qtypes_' + x, 'Bind, ' + x + ' View, Requests by Query Type', 'requests/s', 'view_' + x, 'named.resolver_qtypes', netdata.chartTypes.stacked, named.base_priority + 14, netdata.chartAlgorithms.incremental, 1, 1);
+
+                    //if(typeof resolver.cache !== 'undefined')
+                    //  service.module.chartFromMembers(service, resolver.cache, 'view_resolver_cache_' + x, 'Bind, ' + x + ' View, Cache Entries', 'entries', 'view_' + x, 'named.resolver_cache', netdata.chartTypes.stacked, named.base_priority + 15, netdata.chartAlgorithms.absolute, 1, 1);
+
+                    if(typeof resolver.cachestats['CacheHits'] !== 'undefined' && resolver.cachestats['CacheHits'] > 0) {
+                        var id = 'named_' + service.name + '.view_resolver_cachehits_' + x;
+                        var chart = named.charts[id];
+
+                        if(typeof chart === 'undefined') {
+                            chart = {
+                                id: id,                                         // the unique id of the chart
+                                name: '',                                       // the unique name of the chart
+                                title: service.name + ' Bind, ' + x + ' View, Resolver Cache Hits',     // the title of the chart
+                                units: 'operations/s',                          // the units of the chart dimensions
+                                family: 'view_' + x,                            // the family of the chart
+                                context: 'named.resolver_cache_hits',           // the context of the chart
+                                type: netdata.chartTypes.area,                  // the type of the chart
+                                priority: named.base_priority + 1100,           // the priority relative to others in the same family
+                                update_every: service.update_every,             // the expected update frequency of the chart
+                                dimensions: {
+                                    'CacheHits': {
+                                        id: 'CacheHits',                            // the unique id of the dimension
+                                        name: 'hits',                               // the name of the dimension
+                                        algorithm: netdata.chartAlgorithms.incremental,// the id of the netdata algorithm
+                                        multiplier: 1,                              // the multiplier
+                                        divisor: 1,                                 // the divisor
+                                        hidden: false                               // is hidden (boolean)
+                                    },
+                                    'CacheMisses': {
+                                        id: 'CacheMisses',                          // the unique id of the dimension
+                                        name: 'misses',                             // the name of the dimension
+                                        algorithm: netdata.chartAlgorithms.incremental,// the id of the netdata algorithm
+                                        multiplier: -1,                             // the multiplier
+                                        divisor: 1,                                 // the divisor
+                                        hidden: false                               // is hidden (boolean)
+                                    }
+                                }
+                            };
+
+                            chart = service.chart(id, chart);
+                            named.charts[id] = chart;
+                        }
+
+                        service.begin(chart);
+                        service.set('CacheHits', resolver.cachestats['CacheHits']);
+                        service.set('CacheMisses', resolver.cachestats['CacheMisses']);
+                        service.end();
+                    }
+
+                    // this is wrong, it contains many types of info:
+                    // 1. CacheHits, CacheMisses - incremental (added above)
+                    // 2. QueryHits, QueryMisses - incremental
+                    // 3. DeleteLRU, DeleteTTL - incremental
+                    // 4. CacheNodes, CacheBuckets - absolute
+                    // 5. TreeMemTotal, TreeMemInUse - absolute
+                    // 6. HeapMemMax, HeapMemTotal, HeapMemInUse - absolute
+                    //if(typeof resolver.cachestats !== 'undefined')
+                    //  service.module.chartFromMembers(service, resolver.cachestats, 'view_resolver_cachestats_' + x, 'Bind, ' + x + ' View, Cache Statistics', 'requests/s', 'view_' + x, 'named.resolver_cache_stats', netdata.chartTypes.line, named.base_priority + 1001, netdata.chartAlgorithms.incremental, 1, 1);
+
+                    //if(typeof resolver.adb !== 'undefined')
+                    //  service.module.chartFromMembers(service, resolver.adb, 'view_resolver_adb_' + x, 'Bind, ' + x + ' View, ADB Statistics', 'entries', 'view_' + x, 'named.resolver_adb', netdata.chartTypes.line, named.base_priority + 1002, netdata.chartAlgorithms.absolute, 1, 1);
+                }
+            }
+        }
+    },
+
+    // module.serviceExecute()
+    // this function is called only from this module
+    // its purpose is to prepare the request and call
+    // netdata.serviceExecute()
+    serviceExecute: function(name, a_url, update_every) {
+        if(netdata.options.DEBUG === true) netdata.debug(this.name + ': ' + name + ': url: ' + a_url + ', update_every: ' + update_every);
+        var service = netdata.service({
+            name: name,
+            request: netdata.requestFromURL(a_url),
+            update_every: update_every,
+            module: this
+        });
+
+        service.execute(this.processResponse);
+    },
+
+    configure: function(config) {
+        var added = 0;
+
+        if(this.enable_autodetect === true) {
+            this.serviceExecute('local', 'http://localhost:8888/json/v1/server', this.update_every);
+            added++;
+        }
+        
+        if(typeof(config.servers) !== 'undefined') {
+            var len = config.servers.length;
+            while(len--) {
+                if(typeof config.servers[len].update_every === 'undefined')
+                    config.servers[len].update_every = this.update_every;
+
+                this.serviceExecute(config.servers[len].name, config.servers[len].url, config.servers[len].update_every);
+                added++;
+            }
+        }
+
+        return added;
+    },
+
+    // module.update()
+    // this is called repeatidly to collect data, by calling
+    // netdata.serviceExecute()
+    update: function(service, callback) {
+        service.execute(function(serv, data) {
+            service.module.processResponse(serv, data);
+            callback();
+        });
+    },
 };
 
 module.exports = named;