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Изходен канал @clockstackwheels · Post #884 · 5.10

Роскосмос пару дней назад опубликовал отчёт о том, почему упала "Луна-25". Там конечно канцелярит, но можно примерно понять, что двигатель коррекции получил неверные данные от акселерометра: из-за возможного попадания в один массив данных команд с различными приоритетами их исполнения прибором Это очень похоже на программную ошибку, а это моя сфера, и я решил над ситуацией поразмыслить. Хейтеры сразу стали строчить комментарии в стиле "Ололо, наняли каких-то идиотов, которые простейшие тесты не провели". Тут обычно справедливо вспоминают аварию с европейской ракетой Ариан-5 в 1996 году. Там буквально из-за пары строчек кода в результате неправильного приведения числовых типов ракета за 7 млрд баксов развалилась на куски в воздухе. Бывает. Что касается Роскосмоса, при всей его сомнительной репутации, объяснение "Дураки не провели тесты" звучит лично для меня неправдоподобно. На мой личный взгляд возможны два варианта: 1. Если в описании ошибки слово "приоритет" обозначает какой-то признак внутри объекта команды, значит, на входе в приёмный модуль эти команды не были отфильтрованы. Выглядит как грубая ошибка, целый логический блок упущен. Вряд ли этот блок вообще не написан, скорее всего он не выполнился. Такое бывает, если в тестовой среде есть какое-то условие, которого нет в рабочей, и именно это условие отвечает за выполнение участка кода. Сталкивался с таким миллион раз. Самое дикое из последнего: код парсит эксель-таблицу с числами. Разработчик написал, запустил проверил, прогнал тесты, всё ок. Отправляем в прод — все числа будто бы рандомно меняются на другие. Запускаем снова — у всех разработчиков функционирует нормально, а в проде на сервере нет. Таблица одна и та же. Можете подумать, почему так. Ответ: у разработчиков стоит русская локаль и десятичный разделитесь это запятая, а на проде в докере точка. При парсинге на проде запятая уже интерпретируется как разделитель тысячных разрядов. 2. Куда вероятнее, что слово "приоритет" в описании ошибки обозначает время, а, значит, список команд просто не был отсортирован, и в обработчик уже после актуальных значений попали какие-нибудь начальные нулевые данные, сбившие логику. По косвенному описанию проблемы очень похоже именно на это. Значит, на тестах всегда порядок возникновения команд соответствовал порядку их прихода, а в реальности перестал соответствовать. Вообще, работать с железом очень сложно. Какую-нибудь схемку заглючило от холода, она задержала ответ от датчика на миллисекунду, и всё. Никто не знал, что такая проблема возможна, пока она не возникла. Мне рассказывали о таком случае: юзер логинится на сайт и иногда логин проходит, а иногда нет. Логин и пароль те же самые. Просто в случайные моменты времени ему возвращают токен авторизации, а в другие моменты времени ошибку 403. Никакой закономерности нет вообще. Нет зависимости от времени суток и даты. Сервер точно работает стабильно и не падает все 100% времени. Почему так может быть? Ответ: у сервиса авторизации два инстанса, перед которыми балансировщик нагрузки. В одном инстансе данные для авторизации есть, в другом нет. Балансировщик при примерно одинаковой нагрузке включает просто случайный выбор между ними. В общем, программисты иногда допускают такие косяки, что какая-то мелочь может привести к серьёзной аварии. Это я вам говорю как программист, который пишет для атомных станций :) #dev

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Намерени 13 подобни публикации

Търсене: #schedule

当前筛选 #schedule清除筛选

😄Schedule ➖➖➖➖➖➖ 🔘Schedule as a noun can be a plan or list of when things happen. 🔜 According to the schedule we start at 9 tomorrow. 🔘A schedule can tell when planes, trains and buses are planned to arrive at and depart from different places. 🔜The flight schedule says that we should be leaving at 1015. 🔘As a verb, schedule means to plan to for something to happen at a certain time. It’s often used in the passive to talk about when things will or should happen. 🔜The meeting was scheduled for 9:30, but everyone was late. #Schedule👨‍🏫@America ➖➖➖➖➖➖➖➖➖➖➖➖ 🆕 Crypto News @Money 😁 Crypto Game @Egame 🇺🇸 US News @America 🇯🇵 Japan News @Japan 🇦🇪 UAE News @Dubai ▶️ Popular Movies @Videos 😜 Best Funny Video @Funnys

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😄Schedule ➖➖➖➖➖➖ 🔘Schedule as a noun can be a plan or list of when things happen. 🔜 According to the schedule we start at 9 tomorrow. 🔘A schedule can tell when planes, trains and buses are planned to arrive at and depart from different places. 🔜The flight schedule says that we should be leaving at 1015. 🔘As a verb, schedule means to plan to for something to happen at a certain time. It’s often used in the passive to talk about when things will or should happen. 🔜The meeting was scheduled for 9:30, but everyone was late. #Schedule👨‍🏫@America ➖➖➖➖➖➖➖➖➖➖➖➖ 🆕 Crypto News @Money 😁 Crypto Game @Egame 🇺🇸 US News @America 🇯🇵 Japan News @Japan 🇦🇪 UAE News @Dubai ▶️ Popular Movies @Videos 😜 Best Funny Video @Funnys

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Doniyor Olimjonov English | IELTS

@doniyorieltss · Post #1884 · 28.01.2024 г., 17:58

IELTS BAND8.5+ #Schedule ✅A - READING! Make sure that you spend at least 1 hour a day on the following (don’t forget to record vocab, underline useful collocations, copy them into your vocab book... if you have one): ✅ B - WATCHING Don't watch your content passively with the video/radio etc. playing in the background. You need to listen attentively since you'll need to do the same in the exam. Train your ear at an early stage and make life easier for yourself down the line. Oh, and if watching something.... subtitles OFF! 1 hour a day, too. 📆 MONDAY 📖National Geographic: select THEMES and randomly read an article whether science, travel, adventure, animals etc. 💻Documentary: think about what you might have read and type the theme into YouTube 📆 TUESDAY 📖Time Magazine: click the box top left next to TIME and randomly read an article whether politics, business, tech, health etc. 💻YouTube Videos: I have put together a number of YouTube channels I enjoy in a post. 📆WEDNESDAY 📖 The Guardian: Randomly select different themes and select an article at random to read 💻BBC World service is a good one. Loads of different themes for background listening: https://www.bbc.co.uk/sounds/play/live:bbc_world_serv.. 📆THURSDAY 📖Scientific American : randomly select a news article to read. 💻 Documentary: Curiosity Stream is a good one, but it's a paid website. 📆FRIDAY (Entertainment) 📖 Continue reading a book of your choice PROVIDING it’s not a classic (continue with that after your course) 💻 Watch a film of your choice but still have pen and paper ready! Subtitles off!!! 📆SATURDAYS AND SUNDAYS Focus on doing your grammar and vocab exercises, practice tests as well as go over the vocab and things you have recorded during the week. Use the weekend to write your essays. My guidelines: 📌 It doesn't matter if you're interested in the themes or not. In the exam you don't have a choice. So stop being selective. Move beyond Friends and The Big Bang Theory. 📌 Record "chunks of language". Once you've done the article or video, summarize it out aloud recycling that language you have just jotted down. Maybe even write a small summary. 📌 Less is more! Do one article or video a day. That's enough. Better do one, learn and recycle the language rather than watch/read too many and remember nothing. ⚡️@ieltsulugbeks⚡️

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Doniyor Olimjonov English | IELTS

@doniyorieltss · Post #703 · 30.01.2023 г., 15:16

IELTS BAND8.5+ #Schedule ✅A - READING! Make sure that you spend at least 1 hour a day on the following (don’t forget to record vocab, underline useful collocations, copy them into your vocab book... if you have one): ✅ B - WATCHING Don't watch your content passively with the video/radio etc. playing in the background. You need to listen attentively since you'll need to do the same in the exam. Train your ear at an early stage and make life easier for yourself down the line. Oh, and if watching something.... subtitles OFF! 1 hour a day, too. 📆 MONDAY 📖National Geographic: select THEMES and randomly read an article whether science, travel, adventure, animals etc. 💻Documentary: think about what you might have read and type the theme into YouTube 📆 TUESDAY 📖Time Magazine: click the box top left next to TIME and randomly read an article whether politics, business, tech, health etc. 💻YouTube Videos: I have put together a number of YouTube channels I enjoy in a post. 📆WEDNESDAY 📖 The Guardian: Randomly select different themes and select an article at random to read 💻BBC World service is a good one. Loads of different themes for background listening: https://www.bbc.co.uk/sounds/play/live:bbc_world_serv.. 📆THURSDAY 📖Scientific American : randomly select a news article to read. 💻 Documentary: Curiosity Stream is a good one, but it's a paid website. 📆FRIDAY (Entertainment) 📖 Continue reading a book of your choice PROVIDING it’s not a classic (continue with that after your course) 💻 Watch a film of your choice but still have pen and paper ready! Subtitles off!!! 📆SATURDAYS AND SUNDAYS Focus on doing your grammar and vocab exercises, practice tests as well as go over the vocab and things you have recorded during the week. Use the weekend to write your essays. My guidelines: 📌 It doesn't matter if you're interested in the themes or not. In the exam you don't have a choice. So stop being selective. Move beyond Friends and The Big Bang Theory. 📌 Record "chunks of language". Once you've done the article or video, summarize it out aloud recycling that language you have just jotted down. Maybe even write a small summary. 📌 Less is more! Do one article or video a day. That's enough. Better do one, learn and recycle the language rather than watch/read too many and remember nothing. ⚡️@ieltsulugbeks⚡️

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Doniyor Olimjonov English | IELTS

@doniyorieltss · Post #561 · 22.01.2023 г., 17:26

IELTS BAND8.5+ #Schedule ✅A - READING! Make sure that you spend at least 1 hour a day on the following (don’t forget to record vocab, underline useful collocations, copy them into your vocab book... if you have one): ✅ B - WATCHING Don't watch your content passively with the video/radio etc. playing in the background. You need to listen attentively since you'll need to do the same in the exam. Train your ear at an early stage and make life easier for yourself down the line. Oh, and if watching something.... subtitles OFF! 1 hour a day, too. 📆 MONDAY 📖National Geographic: select THEMES and randomly read an article whether science, travel, adventure, animals etc. 💻Documentary: think about what you might have read and type the theme into YouTube 📆 TUESDAY 📖Time Magazine: click the box top left next to TIME and randomly read an article whether politics, business, tech, health etc. 💻YouTube Videos: I have put together a number of YouTube channels I enjoy in a post. 📆WEDNESDAY 📖 The Guardian: Randomly select different themes and select an article at random to read 💻BBC World service is a good one. Loads of different themes for background listening: https://www.bbc.co.uk/sounds/play/live:bbc_world_serv.. 📆THURSDAY 📖Scientific American : randomly select a news article to read. 💻 Documentary: Curiosity Stream is a good one, but it's a paid website. 📆FRIDAY (Entertainment) 📖 Continue reading a book of your choice PROVIDING it’s not a classic (continue with that after your course) 💻 Watch a film of your choice but still have pen and paper ready! Subtitles off!!! 📆SATURDAYS AND SUNDAYS Focus on doing your grammar and vocab exercises, practice tests as well as go over the vocab and things you have recorded during the week. Use the weekend to write your essays. My guidelines: 📌 It doesn't matter if you're interested in the themes or not. In the exam you don't have a choice. So stop being selective. Move beyond Friends and The Big Bang Theory. 📌 Record "chunks of language". Once you've done the article or video, summarize it out aloud recycling that language you have just jotted down. Maybe even write a small summary. 📌 Less is more! Do one article or video a day. That's enough. Better do one, learn and recycle the language rather than watch/read too many and remember nothing. ⚡️@ieltsulugbeks⚡️

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JIFAR CAREER

@JIFAR1 · Post #178 · 29.06.2025 г., 20:28

#ESSLCE#Schedule ነገ የሚጀመረው የ2017 ዓ.ም ሀገር አቀፍ የሁለተኛ ደረጃ ትምህርት መልቀቂያ ፈተና የተፈጥሮ ሳይንስ ተማሪዎች የመጀመሪያ እና የሁለተኛ ዙር የፈተና መርሐግብር በወረቀት እና በኦንላይን የሚሰጠው ብሔራዊ ፈተና ከሰኔ 23 እስከ ሐምሌ 08/2017 ዓ.ም ይቆያል። ፈተናውን ለመውሰድ 608 ሺህ ተማሪዎች የተመዘገቡ ሲሆን፤ 150 ሺህ የሚሆኑት በበይነ መረብ የሚፈተኑ ናቸው። ለሁሉም የ 12ተኛ ክፍል ተማሪዎች መልካም ፈተና ይሁንላችሁ ሲል JIFAR CAREER ልባዊ ምኞቱን ይገልፃል

JIFAR CAREER

@JIFAR1 · Post #181 · 07.07.2025 г., 21:45

#ESSLCE #SocialScience #Schedule የ2017 ዓ.ም ሀገር አቀፍ የሁለተኛ ደረጃ ትምህርት መልቀቂያ ፈተና የማኀበራዊ ሳይንስ ተማሪዎች የፈተና መርሐግብር: በወጣው መርሐግብር መሰረት ነገ ሐምሌ 01/2017 ዓ.ም የእንግሊዝኛ እና የሒሳብ ትምህርት ፈተናዎች በጠዋት እና በከሰዓት ፈረቃዎች ይሰጣሉ። በወረቀት እና በኦንላይን የሚሰጠው የማኀበራዊ ሳይንስ ተማሪዎች ፈተና፤ ከሐምሌ 01-08/2017 ዓ.ም ይቆያል።

djangoproject

@djangoproject · Post #262 · 16.02.2017 г., 07:24

http://masnun.com/2015/11/20/python-asyncio-future-task-and-the-event-loop.html On any platform, when we want to do something #asynchronously, it usually involves an #event loop. An event loop is a loop that can register #tasks to be executed, execute them, delay or even cancel them and handle different events related to these operations. Generally, we #schedule multiple async functions to the event loop. The loop runs one function, while that function waits for #IO, it pauses it and runs another. When the first function completes IO, it is resumed. Thus two or more functions can #co_operatively run together. This the main goal of an event loop.

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Venture Village Wall 🦄

@venturevillagewall · Post #3857 · 12.01.2025 г., 16:00

FTX Announces Preliminary Fund Distribution Schedule 🔵 FTX reveals a preliminary payment distribution schedule for creditors. 🔵 Claims under $50k total $1.2 billion. 🔴 By January 20: Preliminary claims must be met. 🔴February 25 - March 4: Expected period for fund distribution begins. 🤔 Will this bring additional liquidity to the market? Read more #FTX#Crypto#Market#Liquidity#Payments#Claims#Finance#Investments#Bitcoin#News#Updates#Distribution#Schedule#CryptoTwitter#Investors#Creditors#Funds#Return#January#February#March

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