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Merge pull request #2714 from blinkov/CLICKHOUSE-2720
Refactoring that also fixes CLICKHOUSE-3858
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alexey-milovidov
GitHub
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743f904a64
@ -78,9 +78,9 @@ See the difference? Read further to learn why this happens.
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For example, the query "count the number of records for each advertising platform" requires reading one "advertising platform ID" column, which takes up 1 byte uncompressed. If most of the traffic was not from advertising platforms, you can expect at least 10-fold compression of this column. When using a quick compression algorithm, data decompression is possible at a speed of at least several gigabytes of uncompressed data per second. In other words, this query can be processed at a speed of approximately several billion rows per second on a single server. This speed is actually achieved in practice.
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Example:
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```bash
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<details><summary>Example</summary>
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<p>
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<pre>
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$ clickhouse-client
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ClickHouse client version 0.0.52053.
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Connecting to localhost:9000.
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@ -122,7 +122,9 @@ LIMIT 20
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20 rows in set. Elapsed: 0.153 sec. Processed 1.00 billion rows, 4.00 GB (6.53 billion rows/s., 26.10 GB/s.)
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:)
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```
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</pre>
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</p>
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</details>
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### CPU
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@ -78,9 +78,9 @@ ClickHouse - столбцовая система управления базам
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Для примера, для запроса "посчитать количество записей для каждой рекламной системы", требуется прочитать один столбец "идентификатор рекламной системы", который занимает 1 байт в несжатом виде. Если большинство переходов было не с рекламных систем, то можно рассчитывать хотя бы на десятикратное сжатие этого столбца. При использовании быстрого алгоритма сжатия, возможно разжатие данных со скоростью более нескольких гигабайт несжатых данных в секунду. То есть, такой запрос может выполняться со скоростью около нескольких миллиардов строк в секунду на одном сервере. На практике, такая скорость действительно достигается.
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Пример:
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```bash
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<details><summary>Пример</summary>
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<p>
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<pre>
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$ clickhouse-client
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ClickHouse client version 0.0.52053.
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Connecting to localhost:9000.
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@ -122,7 +122,9 @@ LIMIT 20
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20 rows in set. Elapsed: 0.153 sec. Processed 1.00 billion rows, 4.00 GB (6.53 billion rows/s., 26.10 GB/s.)
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:)
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```
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</pre>
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</p>
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</details>
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### По вычислениям
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@ -60,6 +60,7 @@ def build_for_lang(lang, args):
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'static_templates': ['404.html'],
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'extra': {
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'single_page': False,
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'opposite_lang': 'en' if lang == 'ru' else 'ru',
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'search': {
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'language': 'en' if lang == 'en' else 'en, %s' % lang
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}
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@ -108,6 +109,7 @@ def build_single_page_version(lang, args, cfg):
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'site_dir': temp,
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'extra': {
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'single_page': True,
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'opposite_lang': 'en' if lang == 'ru' else 'ru',
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'search': {
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'language': 'en, ru'
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}
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@ -224,34 +224,11 @@
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}
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});
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}
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function drawLanguageSwitch() {
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var url, text, title;
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if (window.location.pathname.indexOf('/ru/') >= 0) {
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url = window.location.pathname.replace('/ru/', '/en/');
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text = "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"50\" height=\"30\" viewBox=\"0,0 25,15\" style=\"border:1px solid #eee;margin: .8rem 0 0 -1.25rem;\">\n" +
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"<rect width=\"25\" height=\"15\" fill=\"#00247d\"></rect>\n" +
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"<path d=\"M 0,0 L 25,15 M 25,0 L 0,15\" stroke=\"#fff\" stroke-width=\"3\"></path>\n" +
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"<path d=\"M 12.5,0 V 15 M 0,7.5 H 25\" stroke=\"#fff\" stroke-width=\"5\"></path>\n" +
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"<path d=\"M 12.5,0 V 15 M 0,7.5 H 25\" stroke=\"#cf142b\" stroke-width=\"3\"></path>\n" +
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"</svg>";
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title = "Switch to English"
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} else {
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url = window.location.pathname.replace('/en/', '/ru/');
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text = "<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 10 6\" width=\"50\" height=\"30\" style=\"border: 1px solid #eee;margin: .8rem 0 0 -1.25rem\">\n" +
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"<rect fill=\"#fff\" width=\"10\" height=\"3\"></rect>\n" +
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"<rect fill=\"#d52b1e\" y=\"3\" width=\"10\" height=\"3\"></rect>\n" +
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"<rect fill=\"#0039a6\" y=\"2\" width=\"10\" height=\"2\"></rect>\n" +
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"</svg>";
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title = "Переключить на русский язык"
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}
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document.getElementById("md-language-switch").innerHTML = '<a href="' + url + '" title="' + title + '" class="md-flex__ellipsis md-header-nav__title">' + text + '</a>';
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}
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ready(function () {
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{% if config.extra.single_page and page.content %}
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document.getElementById("content").innerHTML = {{ page.content|tojson|safe }};
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document.getElementsByClassName('md-footer')[0].style.display = 'block';
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{% endif %}
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drawLanguageSwitch();
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app.initialize({
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version: "{{ mkdocs_version }}",
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url: {
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@ -40,9 +40,27 @@
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{% endif %}
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{% endblock %}
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</div>
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{% if config.repo_url %}
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{% if page %}
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<div class="md-flex__cell md-flex__cell--shrink">
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<div id="md-language-switch" class="md-header-nav__source">
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{% if config.extra.lang == 'ru' %}
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<a href="{{ base_url }}/../{{ config.theme.extra.opposite_lang }}{{ page.abs_url }}" title="Switch to English" class="md-flex__ellipsis md-header-nav__title">
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<svg xmlns="http://www.w3.org/2000/svg" width="50" height="30" viewBox="0,0 25,15" style="border:1px solid #eee;margin: .8rem 0 0 -1.25rem;">
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<rect width="25" height="15" fill="#00247d"></rect>
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<path d="M 0,0 L 25,15 M 25,0 L 0,15" stroke="#fff" stroke-width="3"></path>
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<path d="M 12.5,0 V 15 M 0,7.5 H 25" stroke="#fff" stroke-width="5"></path>
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<path d="M 12.5,0 V 15 M 0,7.5 H 25" stroke="#cf142b" stroke-width="3"></path>
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</svg>
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</a>
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{% else %}
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<a href="{{ base_url }}/../{{ config.theme.extra.opposite_lang }}{{ page.abs_url }}" title="Переключить на русский язык" class="md-flex__ellipsis md-header-nav__title">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 10 6" width="50" height="30" style="border: 1px solid #eee;margin: .8rem 0 0 -1.25rem">
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<rect fill="#fff" width="10" height="3"></rect>
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<rect fill="#d52b1e" y="3" width="10" height="3"></rect>
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<rect fill="#0039a6" y="2" width="10" height="2"></rect>
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</svg>
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</a>
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{% endif %}
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</div>
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</div>
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{% endif %}
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@ -1,9 +1,9 @@
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<nav class="md-nav md-nav--primary" data-md-level="0">
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{% if not config.extra.single_page %}
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<label class="md-nav__title md-nav__title--site" for="drawer">
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{{ config.site_name }}
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</label>
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{% if not config.extra.single_page %}
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<ul class="md-nav__list" data-md-scrollfix>
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{% for nav_item in nav %}
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{% set path = "nav-" + loop.index | string %}
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@ -15,32 +15,30 @@
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<ul id="md-extra-nav" class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item md-nav__item--active">
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<script type="text/javascript">
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if (window.location.pathname.indexOf('/ru/') >= 0) {
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if (window.location.pathname.indexOf('/single/') >= 0) {
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document.write("<a href=\"{{ base_url }}/../\" class=\"md-nav__link md-nav__link--active\">Многостраничная версия</a>")
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} else {
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document.write("<a href=\"{{ base_url }}/single/\" class=\"md-nav__link md-nav__link--active\">Одностраничная версия</a>")
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}
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} else {
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if (window.location.pathname.indexOf('/single/') >= 0) {
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document.write("<a href=\"{{ base_url }}/../\" class=\"md-nav__link md-nav__link--active\">Multi page version</a>")
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}else{
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document.write("<a href=\"{{ base_url }}/single/\" class=\"md-nav__link md-nav__link--active\">Single page version</a>")
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}
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}
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</script>
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{% if config.theme.language == 'ru' %}
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{% if config.extra.single_page %}
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<a href="{{ base_url }}" class="md-nav__link md-nav__link--active">Многостраничная версия</a>
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{% else %}
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<a href="{{ base_url }}/single/" class="md-nav__link md-nav__link--active">Одностраничная версия</a>
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{% endif %}
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{% else %}
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{% if config.extra.single_page %}
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<a href="{{ base_url }}" class="md-nav__link md-nav__link--active">Multi page version</a>
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{% else %}
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<a href="{{ base_url }}/single/" class="md-nav__link md-nav__link--active">Single page version</a>
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{% endif %}
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{% endif %}
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</li>
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{% if config.repo_url %}
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<li class="md-nav__item md-nav__item--active">
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<a href="{{ config.repo_url }}" rel="external nofollow" target="_blank" class="md-nav__link">
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<script type="text/javascript">
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if (window.location.pathname.indexOf('/ru/') >= 0) {
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document.write('Исходники ClickHouse');
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} else {
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document.write('ClickHouse sources');
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}
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</script>
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{% if config.theme.language == 'ru' %}
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Исходники ClickHouse
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{% else %}
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ClickHouse sources
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{% endif %}
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</a>
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</li>
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{% endif %}
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</ul>
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</nav>
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