diff options
Diffstat (limited to 'node.d/named.node.js')
| -rwxr-xr-x | node.d/named.node.js | 586 |
1 files changed, 586 insertions, 0 deletions
diff --git a/node.d/named.node.js b/node.d/named.node.js new file mode 100755 index 000000000..c2b15eae7 --- /dev/null +++ b/node.d/named.node.js @@ -0,0 +1,586 @@ +'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: 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; |