28:null 29:["$","title",null,{"children":"DNS Outage | qasimlone | Observable"}] 2e:T718, viewof geoScatterFeatures = { const dropdown = vl.selectPoint('Select') .fields('date') .init({"date": dates[0]}) .bind(vl.menu(dates).name("Select a Date ")); vl.checkbox // const dropdown = vl.selectPoint('Select') // .fields('date', 'kroot') // .init({date: dates[0], kroot: 'ns1.cn-gya.k.ripe.net'}) // .bind({date: vl.menu(dates).name("date: "), kroot: vl.radio(rootservers).name("root-server: ")}); const selectedData = cn_ggz_data.filter(d => d.date == date_selected); // Landmass for the U.S. const landmass = vl.markGeoshape({ stroke: 'white' }) // Get the shape for the U.S. from the us-atlas npm module. .data(vl.topojson(world).feature('countries')) .encode( // vl.stroke().value("#bbb"), // vl.stroke().fill("#e5e8d3"), vl.color().value('#e5e8d3')//.scale({ // scheme: 'spectral', // domain: [30, 90] //}) ); // The previous visualization const points = vl.markCircle({ size: 50 }) .data(cn_ggz_data).params(dropdown) .transform(vl.filter(dropdown) // {"filter": {"field": "kroot", "oneOf": ch}},vl.filter(dropdown) //// vl.filter('datum.kroot == "ns1.cn-gya.k.ripe.net"') ) .encode( vl.longitude().fieldQ("longitude"), vl.latitude().fieldQ("latitude"), vl.tooltip(["prb_id","asn_v4","country_code"]) ) ; // Return a combined view return vl .layer(landmass, points) // .width(900).height(500) //projection .project( vl .projection("naturalEarth1") .translate([450, 300]) .rotate(0) .scale(200) ) .width(width - 50) .height(500) .config({ view: { stroke: null } }) // Layer the views together. //.project(vl.projection("albersUSA")) .render(); }2f:T470,function printTable(data, header, maxWidth) { const Align = { l: 'left', c: 'center', r: 'right' }; const cellStyle = 'padding: 1px 3px; white-space: nowrap;'; header = header || (data[0] && Object.keys(data[0])); if (!header) return ''; const fields = header.map(h => (h && h.field || h) + ''); const styles = header.map(h => { return `style="text-align:${h && Align[h.align] || Align.l}; ${cellStyle}"`; }); const lines = []; const maxw = maxWidth || maxWidth === undefined ? ` style="max-width:${+maxWidth || width}px"` : ''; lines.push(``); // header row lines.push(''); header.forEach((h, i) => { lines.push(`${h && h.title || h}`); }); lines.push(''); // data rows lines.push(''); data.forEach(d => { lines.push(''); fields.map((f, i) => { lines.push(`${printValue(d[f])}`); }); lines.push(''); }); lines.push(''); lines.push(''); return html`

${lines.join('')}

`; } 30:[{"id":"dd191b7de49c2120f11d6f98d733ac89b4bf9753030f83b814b220ebc641f7ae1f2334c78604afe0a908feddf4f5a85610bfab08ef1c52ae156764c1917c6daa","href":"https://static.observableusercontent.com/files/dd191b7de49c2120f11d6f98d733ac89b4bf9753030f83b814b220ebc641f7ae1f2334c78604afe0a908feddf4f5a85610bfab08ef1c52ae156764c1917c6daa","name":"results-20211216-115803.json","type":"application/json","lastModified":1639652381996.063,"size":74326}] 2c:{"id":"e4d26aff953e9a6c","slug":"dns-outage","title":"DNS Outage","thumbnail":"a4c4efea8315e0f510206aead2fc51bc41f363bcc549dd89dad2e9d3c8b38b8c","access_level":"public","create_time":"$D2021-12-01T09:32:49.498Z","update_time":"$D2022-04-13T10:15:00.358Z","view_time":null,"first_public_time":"$D2022-04-13T11:23:07.666Z","has_unpublished_edits":null,"fork":true,"stars":0,"starred":false,"owner":{"type":"team","id":"32e6f15958be7d48","login":"qasimlone","name":"","avatar_url":"https://avatars-next.observableusercontent.com/8df089564135766625db6ae5c024fa7144de49b45320af5afb4dae1495f2c1a5","tier":"starter_2024"},"version":439,"publish_version":439,"role":null,"authored":false,"authors":[{"type":"individual","id":"e73a08859df70266","login":"qasimlone","name":"","avatar_url":"https://avatars-next.observableusercontent.com/8df089564135766625db6ae5c024fa7144de49b45320af5afb4dae1495f2c1a5","tier":null}],"members":[{"type":"individual","id":"e73a08859df70266","login":"qasimlone","name":"","avatar_url":"https://avatars-next.observableusercontent.com/8df089564135766625db6ae5c024fa7144de49b45320af5afb4dae1495f2c1a5","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"DNS Outage","cells":[{"id":0,"value":"# DNS Outage","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":25,"value":"toc(\"h2, h3, h4\") // alternatively toc(\"h1, h2, h3, h4\") if you wanted to include the title heading","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":107,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":5,"value":"## Context\n\n- The incident was reported by Manu Bretelle on DNS-oarc mailing list [link](https://lists.dns-oarc.net/pipermail/dns-operations/2021-November/021437.html)\n- Customers of ISPs in Mexico were not able to reach facebook\n- Affected RIPE atlas probes responded with wrong IP address for DNS queries to resolve Facebook ``d.ns.facebook.com``\n- Probes in the measurements which resulted in wrong IP address are as follows:\n - Probe #27558\n - Probe #31355\n - Probe #52013\n - Probe #52660\n- The id.server returned : **ns1.cn-ggz.k.ripe.net** for the probes which received wrong replies","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":313,"value":"cn_ggz_data","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":8,"value":"### Probes visible to k-root(ns1.cn-ggz.k.ripe.net)\n\nThe incident was reported on 6th Nov, 2021. We start by checking the probes that got a reply from the server from 4th Nov till 10th Nov","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":163,"value":"viewof date_selected = Inputs.select(cn_ggz_aq.rollup({ values: op.array_agg_distinct('date') })\n .get('values', 0))\n\n\n\n","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":393,"value":"dates = uniqueValid(cn_ggz_data, d=>d.date)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":411,"value":"rootservers = uniqueValid(cn_ggz_data, d=>d.kroot)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":326,"value":"viewof ch =checkbox(cn_ggz_aq.rollup({ values: op.array_agg_distinct('kroot') })\n .get('values', 0))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":207,"value":"$2e","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":349,"value":"FileAttachment(\"results-20211216-115803.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":226,"value":"#### Probes outside China that were able to query k-root instance in China","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":286,"value":"probes_outside_china = d3.group(cn_ggz_data, d=> d.date, d => d.country_code)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":297,"value":"pd = probes_outside_china.get(date_selected)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":293,"value":"html`\n \n \n \n ${Array.from(pd, ([key, values]) => html`\n \n \n \n `)}\n

Sport	Athletes
${key}	${values.map(d => d.name).join(\", \")}

`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":239,"value":"//viewof aqdata= aq.from(cn_ggz_data.filter(d => d.country_code != 'CN')).rollup({ values: op.array_agg_distinct('prb_id','country_code') })\nprintTable(unique(cn_ggz_data, [\n {field: 'date', title: 'Date', align: 'l'},\n {field: 'prb_id', title: 'Probe#', align: 'l'},\n {field: 'asn_v4', title: 'ASNv4', align: 'l'}\n]))\n//unique()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":142,"value":"## Data Processing","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":148,"value":"### Loading data","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":152,"value":"data=FileAttachment(\"results-20211216-115803.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":154,"value":"//Inputs.table(data)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":175,"value":"#### Selecting instance that was reported","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":156,"value":"cn_ggz_raw = data.filter(d => d.kroot == 'ns1.cn-ggz.k.ripe.net')","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":167,"value":"cn_ggz_aq = aq.from(data).spread({ rate: d => op.split(d.day, ' ') }, { as: ['date', 'hour' ] })","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":185,"value":"cn_ggz_data = cn_ggz_aq.objects()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":160,"value":"Inputs.table(cn_ggz_data)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":254,"value":"### Functions","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":255,"value":"function unique(data, accessor) {\n return Array.from(new Set(accessor ? data.map(accessor) : data));\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":275,"value":"function dateString(year, month, date) {\n return `${year}-${(month < 10 ? '0' : '') + month}-${(date < 10 ? '0' : '') + date}`;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":272,"value":"function printValue(v) {\n if (v instanceof Date) {\n if (v.getHours() === 0 &&\n v.getMinutes() === 0 &&\n v.getSeconds() === 0 &&\n v.getMilliseconds() === 0)\n {\n return dateString(v.getFullYear(), v.getMonth()+1, v.getDate());\n } else if (v.getUTCHours() === 0 &&\n v.getUTCMinutes() === 0 &&\n v.getUTCSeconds() === 0 &&\n v.getUTCMilliseconds() === 0)\n {\n return dateString(v.getUTCFullYear(), v.getUTCMonth()+1, v.getUTCDate());\n } else {\n return v.toISOString();\n }\n } else {\n return JSON.stringify(v);\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":270,"value":"$2f","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":145,"value":"### Imports","pinned":true,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":309,"value":"import {checkbox} from \"@rohscx/inputs\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":19,"value":"import { toc } from \"@nebrius/indented-toc\" // This component generates the Table of Contents","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":374,"value":"tooltipVersion = '0.25.1'","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":380,"value":"apiVersion = \"5.0.0\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":378,"value":"vlVersion = \"5.0.0\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":376,"value":"vegaVersion = \"5.20.2\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":135,"value":"//import { vl } from \"@vega/vega-lite-api\"\nvl = {\n const [vega, vegalite, api, tooltip] = await Promise.all([\n `vega@${vegaVersion}`,\n `vega-lite@${vlVersion}`,\n `vega-lite-api@${apiVersion}`,\n `vega-tooltip@${tooltipVersion}`\n ].map(module => require(module)));\n\n const options = {\n config: {\n // vega-lite default configuration\n config: {\n view: {continuousWidth: 400, continuousHeight: 300},\n mark: {tooltip: null}\n }\n },\n init: view => {\n // initialize tooltip handler\n view.tooltip(new tooltip.Handler().call);\n // enable horizontal scrolling for large plots\n if (view.container()) view.container().style['overflow-x'] = 'auto';\n },\n view: {\n // view constructor options\n loader: vega.loader({baseURL: 'https://cdn.jsdelivr.net/npm/vega-datasets@2/'}),\n renderer: 'canvas'\n }\n };\n \n return api.register(vega, vegalite, options);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":138,"value":"import {uniqueValid} from \"@uwdata/data-utilities\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":140,"value":"import {aq, op} from \"@uwdata/arquero\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":210,"value":"import {world} from \"@vega/vega-lite-input-binding\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":282,"value":"d3 = require(\"d3-array@^2.10\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":303,"value":"_ = require('lodash')","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W30","stdlib":"1","titling":"auto"}} 2d:"$2c:body"