added command line arguments in node.d.plugin to enabled selected modules; refactored netdata.js for clearance

3 files changed, 951 insertions, 955 deletions

diff --git a/node.d/named.node.js b/node.d/named.node.js
index ad59f69bb7..67426beadf 100755
--- a/node.d/named.node.js
+++ b/node.d/named.node.js
@@ -1,586 +1,588 @@
-'use strict';

-

-// collect statistics from bind (named) v9.10+

-//

-// bind statistics documentation at:

-// http://jpmens.net/2013/03/18/json-in-bind-9-s-statistics-server/

-// https://ftp.isc.org/isc/bind/9.10.3/doc/arm/Bv9ARM.ch06.html#statistics

-

-// example configuration in /etc/netdata/named.conf

-// the module supports auto-detection if bind is running in localhost

-

-/*

-{

-	"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

-		}

-	]

-}

-*/

-

-// the following is the bind named.conf configuration required

-

-/*

-statistics-channels {

-        inet 127.0.0.1 port 8888 allow { 127.0.0.1; };

-};

-*/

-

-var url = require('url');

-var http = require('http');

-var XML = require('pixl-xml');

-var netdata = require('netdata');

-

-if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');

-

-var named = {

-	name: __filename,

-	enable_autodetect: true,

-	update_every: 1000,

-

-	charts: {},

-

-	chartFromMembersCreate: function(service, obj, id, title_suffix, units, family_prefix, category_prefix, 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_prefix + '_' + service.name,		// the family of the chart

-			category: category_prefix + '_' + service.name,	// the category of the chart

-			type: type,										// the type of the chart

-			priority: priority,								// the priority relative to others in the same family and category

-			update_every: Math.round(service.update_every / 1000), // 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_prefix, category_prefix, 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_prefix, category_prefix, 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_prefix, category_prefix, 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)

-				netdata.serviceAdd(service);

-

-			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', 'named', 'named', netdata.chartTypes.stacked, 100, 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', 'named', 'named', netdata.chartTypes.line, 150, 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', 'named', 'named', netdata.chartTypes.stacked, 200, netdata.chartAlgorithms.incremental, 1, 1);

-

-				if(global_queries_enable == true)

-					service.module.chartFromMembers(service, global_queries, 'global_queries', 'Bind, Global Queries Analysis', 'queries/s', 'named', 'named', netdata.chartTypes.stacked, 300, netdata.chartAlgorithms.incremental, 1, 1);

-

-				if(global_updates_enable == true)

-					service.module.chartFromMembers(service, global_updates, 'received_updates', 'Bind, Global Received Updates', 'updates/s', 'named', 'named', netdata.chartTypes.stacked, 900, netdata.chartAlgorithms.incremental, 1, 1);

-

-				if(global_failures_enable == true)

-					service.module.chartFromMembers(service, global_failures, 'query_failures', 'Bind, Global Query Failures', 'failures/s', 'named', 'named', netdata.chartTypes.line, 950, 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', 'named', 'named', netdata.chartTypes.stacked, 960, netdata.chartAlgorithms.incremental, 1, 1);

-

-				if(default_enable === true)

-					service.module.chartFromMembers(service, r.nsstats, 'nsstats', 'Bind, Other Global Server Statistics', 'operations/s', 'named', 'named', netdata.chartTypes.line, 999, 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: 'named',								// the family of the chart

-							category: 'named',								// the category of the chart

-							type: netdata.chartTypes.line,					// the type of the chart

-							priority: 150,									// the priority relative to others in the same family and category

-							update_every: Math.round(service.update_every / 1000), // 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', 'named', 'named', netdata.chartTypes.stacked, 1000, 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', 'named', 'named', netdata.chartTypes.stacked, 2000, netdata.chartAlgorithms.incremental, 1, 1);

-

-			if(typeof r.sockstats !== 'undefined')

-				service.module.chartFromMembers(service, r.sockstats, 'in_sockstats', 'Bind, Global Socket Statistics', 'operations/s', 'named', 'named', netdata.chartTypes.line, 2500, 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', 'named', 'named', netdata.chartTypes.stacked, 5600, 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', 'named', 'named', netdata.chartTypes.line, 5500, 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: 'named',								// the family of the chart

-										category: 'named',								// the category of the chart

-										type: netdata.chartTypes.line,					// the type of the chart

-										priority: 5000,									// the priority relative to others in the same family and category

-										update_every: Math.round(service.update_every / 1000), // 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', 'named', 'named', netdata.chartTypes.stacked, 6000, 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', 'named', 'named', netdata.chartTypes.stacked, 7000, 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: 'named',								// the family of the chart

-								category: 'named',								// the category of the chart

-								type: netdata.chartTypes.area,					// the type of the chart

-								priority: 8000,									// the priority relative to others in the same family and category

-								update_every: Math.round(service.update_every / 1000), // 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', 'named', 'named', netdata.chartTypes.line, 8000, 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', 'named', 'named', netdata.chartTypes.line, 8500, 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);

-		netdata.serviceExecute({

-			name: name,

-			request: netdata.requestFromURL(a_url),

-			update_every: update_every,

-			module: this

-		}, 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;

-				else

-					config.servers[len].update_every = config.servers[len].update_every * 1000;

-

-				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) {

-		netdata.serviceExecute(service, function(serv, data) {

-			service.module.processResponse(serv, data);

-			callback();

-		});

-	},

-};

-

-module.exports = named;

+'use strict';
+
+// collect statistics from bind (named) v9.10+
+//
+// bind statistics documentation at:
+// http://jpmens.net/2013/03/18/json-in-bind-9-s-statistics-server/
+// https://ftp.isc.org/isc/bind/9.10.3/doc/arm/Bv9ARM.ch06.html#statistics
+
+// example configuration in /etc/netdata/named.conf
+// the module supports auto-detection if bind is running in localhost
+
+/*
+{
+	"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
+		}
+	]
+}
+*/
+
+// the following is the bind named.conf configuration required
+
+/*
+statistics-channels {
+        inet 127.0.0.1 port 8888 allow { 127.0.0.1; };
+};
+*/
+
+var url = require('url');
+var http = require('http');
+var XML = require('pixl-xml');
+var netdata = require('netdata');
+
+if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');
+
+var named = {
+	name: __filename,
+	enable_autodetect: true,
+	update_every: 1000,
+
+	charts: {},
+
+	chartFromMembersCreate: function(service, obj, id, title_suffix, units, family_prefix, category_prefix, 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_prefix + '_' + service.name,		// the family of the chart
+			category: category_prefix + '_' + service.name,	// the category of the chart
+			type: type,										// the type of the chart
+			priority: priority,								// the priority relative to others in the same family and category
+			update_every: Math.round(service.update_every / 1000), // 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_prefix, category_prefix, 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_prefix, category_prefix, 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_prefix, category_prefix, 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', 'named', 'named', netdata.chartTypes.stacked, 100, 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', 'named', 'named', netdata.chartTypes.line, 150, 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', 'named', 'named', netdata.chartTypes.stacked, 200, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_queries_enable == true)
+					service.module.chartFromMembers(service, global_queries, 'global_queries', 'Bind, Global Queries Analysis', 'queries/s', 'named', 'named', netdata.chartTypes.stacked, 300, netdata.chartAlgorithms.incremental, 1, 1);
+
+				if(global_updates_enable == true)
+					service.module.chartFromMembers(service, global_updates, 'received_updates', 'Bind, Global Received Updates', 'updates/s', 'named', 'named', netdata.chartTypes.stacked, 900, netdata.chartAlgorithms.incremental, 1, 1);