- Чем SQL отличается от NoSQL
- Что такое транзакции?
- Какие типы транзакций бывают?
- Что такое WAL? Как поднимается и восстанавливается база данных после падения?
- Что такое sharding?
- Почему все не используют MongoDb?
- Что такое BigData?
- Что такое CAP?
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#!/bin/bash | |
# clean up | |
rm -rf /tmp/report | |
(mkdir /tmp/report || (echo "unable to create report dir";exit)) && cd /tmp/report | |
# system | |
free -m > free.log | |
cat /proc/cpuinfo > proc_cpuinfo.log | |
lspci > lspci.log | |
# os | |
mount > mount.log |
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{ | |
"parser": "babel-eslint", | |
"extends": [ | |
"google", | |
"airbnb", | |
"plugin:flowtype/recommended", | |
"eslint:recommended" | |
], | |
"rules": { | |
"no-console": "off", |
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image: docker:dind | |
stages: | |
- build | |
build: | |
stage: build | |
before_script: | |
- docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY | |
- apk add git go |
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Город | Интегральный балл | Объем рынка, млн руб. | Доходы населения в мес, млн руб | Расходы на услуги культуры в мес, млн руб | Темп прироста населения, % | Численность населения, тыс. чел | |
---|---|---|---|---|---|---|---|
Екатеринбург | 83.8357410669149 | 1220.0222 | 51860.107 | 845.86841559999982 | 0.01061561309930914 | 1469 | |
Нижний Новгород | 54.046404278043489 | 736.3918 | 38702.919 | 738.9579636000002 | 0.00079713298894312778 | 1259 | |
Новосибирск | 51.022687605439359 | 327.52212 | 49585.233 | 946.73486520000017 | 0.011328184055558355 | 1613 | |
Краснодар | 40.559044928897883 | 394.9208 | 29901.6 | 220.62564 | 0.023907630663108748 | 900 | |
Тюмень | 39.906685247471643 | 528.8065 | 21793.536 | 123.40224 | 0.035272741828256793 | 768 | |
Челябинск | 39.526068546308053 | 390.602 | 27959.722 | 738.7842984 | 0.0077510353714052016 | 1202 | |
Красноярск | 38.96778699006294 | 377.4597 | 30522.907 | 377.90058 | 0.014280846011855974 | 1091 | |
Ростов-на-Дону | 37.242125816061119 | 246.9899 | 31330.38 | 377.16913999999991 | 0.0046304109709669472 | 1130 | |
Хабаровск | 34.766036054025449 | 40.264 | 23361.018 | 644.04363239999986 | 0.0086176942350080221 | 618 |
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pragma solidity ^0.4.25; | |
contract Proxied { | |
Storage store; | |
mapping(bytes32=>bool) public methods; | |
event Caller(address, address); | |
event ESetStore(address, address); | |
function callMeMaybe() payable public { |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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Взято с https://www.facebook.com/SilikonKrim/posts/1661069143931885 | |
——————— | |
Как я перестал верить в universa. | |
Я Артур Липатов, комьюнити директор Universa.io и это моя история, не уверен что он понравится в ,,Uni,, или как я стал топить за юниверсу в международном комьюнити.... | |
В ноябре 2017 я познакомился с Александром Бородичем, с первых минут общения я понял что он очень достойный человек, и мне интересно с ним двигать технологии вперёд. Саша предложил роль комьюнити директора. Псевдо NDA, в котором я поднимаю капитализацию юни до полумиллиарда и получаю комиссию в 10.000.000$ сегодня перестал иметь ценность и тут я понял что все СТОП. |
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<body> | |
<header> | |
<h1>Armenian | |
Blockchain | |
Forum</h1> | |
<p>Инновации. Технологии. Стартапы.</p> | |
</header> | |
</body> |