mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-04 21:42:39 +00:00
442 lines
14 KiB
HTML
442 lines
14 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>ClickHouse Merges Visualizer</title>
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<link rel="icon" href="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NCIgaGVpZ2h0PSI0OCIgdmlld0JveD0iMCAwIDkgOCI+PHN0eWxlPi5ve2ZpbGw6I2ZjMH0ucntmaWxsOnJlZH08L3N0eWxlPjxwYXRoIGQ9Ik0wLDcgaDEgdjEgaC0xIHoiIGNsYXNzPSJyIi8+PHBhdGggZD0iTTAsMCBoMSB2NyBoLTEgeiIgY2xhc3M9Im8iLz48cGF0aCBkPSJNMiwwIGgxIHY4IGgtMSB6IiBjbGFzcz0ibyIvPjxwYXRoIGQ9Ik00LDAgaDEgdjggaC0xIHoiIGNsYXNzPSJvIi8+PHBhdGggZD0iTTYsMCBoMSB2OCBoLTEgeiIgY2xhc3M9Im8iLz48cGF0aCBkPSJNOCwzLjI1IGgxIHYxLjUgaC0xIHoiIGNsYXNzPSJvIi8+PC9zdmc+">
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<style>
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* {
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box-sizing: border-box;
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}
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html, body {
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height: 100%;
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overflow: auto;
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margin: 0;
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background: #F8F8F8;
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font-size: 16pt;
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}
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body {
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font-family: Liberation Sans, DejaVu Sans, sans-serif, Noto Color Emoji, Apple Color Emoji, Segoe UI Emoji;
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padding: 1rem;
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}
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input, textarea {
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border: 3px solid #EEE;
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font-size: 16pt;
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padding: 0.25rem;
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}
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#url {
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width: 80%;
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}
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#user, #password {
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width: 10%;
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}
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#query {
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width: 100%;
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height: 3rem;
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}
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input[type="button"] {
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background: #FED;
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width: 2rem;
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height: 2rem;
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}
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input[type="button"]:hover {
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background: #F88;
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cursor: pointer;
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}
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#slower {
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margin-left: 1rem;
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}
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#speed {
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background: #DDD;
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}
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#time, #stats {
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padding-left: 1rem;
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font-family: monospace;
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}
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#stats {
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white-space: pre-wrap;
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}
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#canvas {
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margin-top: 0.25rem;
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font-size: 10pt;
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}
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.table, .partition {
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padding: 0.5rem;
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border: 3px solid #EEE;
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background: white;
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overflow: hidden;
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}
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.partition {
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float: left;
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}
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.table_title, .partition_title {
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text-align: center;
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}
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.part {
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display: inline-block;
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padding: 0;
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margin: 0.1rem;
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border: 1px solid black;
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background: #FED;
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overflow: hidden;
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position: relative; /* This enables the positioning context for the child elements. */
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}
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.part_title {
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text-align: center;
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}
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.part:hover {
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overflow: visible;
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}
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.part:hover .part_title {
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z-index: 1;
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position: absolute;
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background: yellow;
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}
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</style>
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</head>
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<body>
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<div class="inputs">
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<form id="params">
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<div id="connection-params">
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<input spellcheck="false" id="url" type="text" value="" placeholder="URL" /><input spellcheck="false" id="user" type="text" value="" placeholder="user" /><input spellcheck="false" id="password" type="password" placeholder="password" value="" />
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<input id="hidden-submit" type="submit" hidden="true"/>
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</div>
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<textarea spellcheck="false" data-gramm="false" id="query">SELECT * FROM system.part_log ORDER BY event_date, event_time, event_time_microseconds</textarea>
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<input id="play" type="button" value="▶">
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<input id="slower" type="button" value="⏪"><span id="speed">10x</span><input id="faster" type="button" value="⏩"></input>
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<span id="time">0000-00-00 00:00:00</span>
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<span id="stats"></span>
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</form>
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</div>
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<div id="canvas">
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</div>
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<script>
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let add_http_cors_header = (location.protocol != 'file:');
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if (!document.getElementById('url').value) {
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document.getElementById('url').value = location.protocol != 'file:' ? location.origin : 'http://localhost:8123/';
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}
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if (!document.getElementById('user').value) {
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let user = 'default';
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const current_url = new URL(window.location);
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/// Substitute user name if it's specified in the query string
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const user_from_url = current_url.searchParams.get('user');
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if (user_from_url) {
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user = user_from_url;
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}
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document.getElementById('user').value = user;
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}
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function formatValue(v) {
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if (v >= 1000000000000) { return (v / 1000000000000).toFixed(2) + 'T'; }
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if (v >= 1000000000) { return (v / 1000000000).toFixed(2) + 'G'; }
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if (v >= 1000000) { return (v / 1000000).toFixed(2) + 'M'; }
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if (v >= 1000) { return (v / 1000).toFixed(2) + 'K'; }
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return v;
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}
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function sleep(ms) {
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return new Promise(resolve => setTimeout(resolve, ms));
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}
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let canvas = document.getElementById('canvas');
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let time = document.getElementById('time');
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let stats = document.getElementById('stats');
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let num_parts = 0;
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let inserted_rows = 0;
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let inserted_bytes = 0;
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let inserted_parts = 0;
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let merged_rows = 0;
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let merged_bytes = 0;
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let merged_parts = 0;
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let currently_active_parts = {};
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let speed = 100;
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let prev_time = null;
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async function update(data) {
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curr_time = new Date(data.event_time_microseconds + 'Z');
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time_diff = prev_time ? curr_time - prev_time : 0;
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prev_time = curr_time;
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if (speed <= 1000) {
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await sleep(time_diff / speed);
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}
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time.innerText = data.event_time;
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const table_id = `table-${data.table_uuid}`;
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let table = document.getElementById(table_id);
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if (!table) {
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table = document.createElement('div');
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table.id = table_id;
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table.className = 'table';
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let table_title = document.createElement('div');
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table_title.className = 'table_title';
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table_title.innerText = `${data.database}.${data.table}`;
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table.appendChild(table_title);
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canvas.appendChild(table);
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}
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const partition_id = `partition-${data.table_uuid}-${data.partition_id}`;
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let partition = document.getElementById(partition_id);
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if (!partition) {
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partition = document.createElement('div');
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partition.id = partition_id;
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partition.className = 'partition';
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let partition_title = document.createElement('div');
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partition_title.className = 'partition_title';
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partition_title.innerText = `${data.partition_id}`;
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partition.appendChild(partition_title);
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table.appendChild(partition);
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}
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const part_id = `part-${data.table_uuid}-${data.part_name}`;
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const matches = data.part_name.match(/[\w-]+_(\d+)_(\d+)_(\d+)(?:_(\d+))?/);
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const min_block_id = +matches[1];
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const max_block_id = +matches[2];
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const level = +matches[3];
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if (data.event_type == 'NewPart' || data.event_type == 'DownloadPart' || data.event_type == 'MergeParts' || data.event_type == 'MutatePart') {
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if (!(data.table_uuid in currently_active_parts)) {
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currently_active_parts[data.table_uuid] = {};
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}
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if (!(data.part_name in currently_active_parts[data.table_uuid])) {
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currently_active_parts[data.table_uuid][data.part_name] = 1;
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++num_parts;
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if (level == 0) {
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++inserted_parts;
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inserted_rows += +data.rows;
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inserted_bytes += +data.size_in_bytes;
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} else {
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playClick(Math.min(1, data.size_in_bytes / 10e9));
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++merged_parts;
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merged_rows += +data.rows;
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merged_bytes += +data.size_in_bytes;
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}
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part = document.createElement('div');
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part.id = part_id;
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part['data-name'] = data.part_name;
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part['data-min-block-id'] = min_block_id;
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part['data-max-block-id'] = max_block_id;
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part['data-level'] = level;
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part.className = 'part';
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part_title = document.createElement('div');
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part_title.className = 'part_title';
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part_title.innerText = `${data.part_name}, ${formatValue(data.size_in_bytes)}`;
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part.appendChild(part_title);
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const size = Math.sqrt(data.size_in_bytes);
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part.style.width = Math.round(size / 500) + 'px';
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part.style.height = Math.round(size / 1000) + 'px';
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part.style.line_height = part.style.height;
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let inserted = false;
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for (const child of partition.childNodes) {
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const child_min_block_id = +child['data-min-block-id'];
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const child_max_block_id = +child['data-max-block-id'];
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const child_level = +child['data-level'];
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if (!inserted && child_min_block_id >= min_block_id) {
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partition.insertBefore(part, child);
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inserted = true;
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}
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/// Covered parts.
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if (level > child_level && min_block_id <= child_min_block_id && max_block_id >= child_max_block_id) {
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delete currently_active_parts[data.table_uuid][child['data-name']];
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--num_parts;
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partition.removeChild(child);
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}
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if (child_min_block_id > max_block_id) {
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break;
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}
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}
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if (!inserted) {
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partition.appendChild(part);
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}
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}
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for (const old_part_name of data.merged_from) {
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if (old_part_name in currently_active_parts[data.table_uuid]) {
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delete currently_active_parts[data.table_uuid][old_part_name];
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--num_parts;
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const old_part = document.getElementById(`part-${data.table_uuid}-${old_part_name}`);
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if (old_part) {
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partition.removeChild(old_part);
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}
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}
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}
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}
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if (data.event_type == 'RemovePart') {
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if ((data.table_uuid in currently_active_parts) && (data.part_name in currently_active_parts[data.table_uuid])) {
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delete currently_active_parts[data.table_uuid][data.part_name];
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--num_parts;
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const old_part = document.getElementById(part_id);
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if (old_part) {
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partition.removeChild(old_part);
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}
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}
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}
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stats.innerText = `${num_parts} parts.
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Inserted ${inserted_parts} parts, ${inserted_rows} rows, ${formatValue(inserted_bytes)}.
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Merged into ${merged_parts} parts, ${merged_rows} rows, ${formatValue(merged_bytes)}. Write aplification: ${((inserted_bytes + merged_bytes) / inserted_bytes).toFixed(2)}`;
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}
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let loading = false;
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let stopping = false;
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async function load() {
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canvas.innerHTML = '';
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num_parts = 0;
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inserted_rows = 0;
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inserted_bytes = 0;
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inserted_parts = 0;
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merged_rows = 0;
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merged_bytes = 0;
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merged_parts = 0;
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currently_active_parts = {};
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prev_time = null;
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const host = document.getElementById('url').value;
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const user = document.getElementById('user').value;
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const password = document.getElementById('password').value;
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let url = `${host}?default_format=JSONEachRow&enable_http_compression=1`
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if (add_http_cors_header) {
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// For debug purposes, you may set add_http_cors_header from the browser console
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url += '&add_http_cors_header=1';
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}
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if (user) {
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url += `&user=${encodeURIComponent(user)}`;
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}
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if (password) {
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url += `&password=${encodeURIComponent(password)}`;
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}
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const query = document.getElementById('query').value;
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let response, reply, error;
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try {
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loading = true;
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document.getElementById('play').value = '⏹';
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response = await fetch(url, { method: "POST", body: query });
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const reader = response.body.getReader();
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const decoder = new TextDecoder();
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let buffer = '';
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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if (stopping) {
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stopped = true;
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break;
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}
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buffer += decoder.decode(value, { stream: true });
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let lines = buffer.split('\n');
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for (line of lines.slice(0, -1)) {
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if (stopping) {
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stopped = true;
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break;
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}
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const data = JSON.parse(line);
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await update(data);
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};
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buffer = lines[lines.length - 1];
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}
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} catch (e) {
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console.log(e);
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error = e.toString();
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}
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loading = false;
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stopping = false;
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document.getElementById('play').value = '▶';
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}
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function stop() {
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stopping = true;
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}
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document.getElementById('play').addEventListener('click', _ => {
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if (loading) {
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stop();
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} else if (stopping) {
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} else {
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load();
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}
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});
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function updateSpeed() {
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document.getElementById('speed').innerText = speed <= 1000 ? `${speed}x` : `max`;
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}
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updateSpeed();
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document.getElementById('slower').addEventListener('click', _ => {
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if (speed > 1) {
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speed = Math.max(speed / 10, 1);
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updateSpeed();
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}
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});
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document.getElementById('faster').addEventListener('click', _ => {
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if (speed <= 1000) {
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speed = Math.min(speed * 10, 10000);
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updateSpeed();
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}
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});
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const audioCtx = new (window.AudioContext || window.webkitAudioContext)();
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let source = null;
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function playClick(volume) {
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if (source) {
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source.disconnect(audioCtx.destination);
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}
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source = audioCtx.createBufferSource();
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const myArrayBuffer = audioCtx.createBuffer(1, audioCtx.sampleRate / 1000, audioCtx.sampleRate);
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const nowBuffering = myArrayBuffer.getChannelData(0);
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for (let i = 0; i < myArrayBuffer.length; ++i) {
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nowBuffering[i] = volume * (Math.random() * 2 - 1);
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}
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source.buffer = myArrayBuffer;
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source.connect(audioCtx.destination);
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source.start();
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}
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</script>
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</body>
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</html>
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