سناریویی را در نظر بگیرید که حجم داده آنقدر زیاد شده است که امکان قرار دادن آن در یک سرور ذخیره‌سازی (پایگاه داده) امکان پذیر نیست. حتی ممکن است بهبود توان و فضای سرور ذخیره‌سازی هم مقرون به صرفه نباشد زیرا پاسخ به درخواست وارده باید کل پایگاه داده را بررسی کند. افراز بندی پایگاه داده که به آن شارد کردن (sharding) نیز می‌گویند، یک راه معروف برای حل مشکل فوق است.
سناریویی را در نظر بگیرید که حجم داده آنقدر زیاد شده است که امکان قرار دادن آن در یک سرور ذخیره‌سازی (پایگاه داده) امکان پذیر نیست. حتی ممکن است بهبود توان و فضای سرور ذخیره‌سازی هم مقرون به صرفه نباشد زیرا پاسخ به درخواست وارده باید کل پایگاه داده را بررسی کند. افراز بندی پایگاه داده که به آن شارد کردن (sharding) نیز می‌گویند، یک راه معروف برای حل مشکل فوق است.
#09_Sharding #System_Design
BY Golem Course
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What distinguishes the app from competitors is its use of what's known as channels: Public or private feeds of photos and videos that can be set up by one person or an organization. The channels have become popular with on-the-ground journalists, aid workers and Ukrainian President Volodymyr Zelenskyy, who broadcasts on a Telegram channel. The channels can be followed by an unlimited number of people. Unlike Facebook, Twitter and other popular social networks, there is no advertising on Telegram and the flow of information is not driven by an algorithm. Unlike Silicon Valley giants such as Facebook and Twitter, which run very public anti-disinformation programs, Brooking said: "Telegram is famously lax or absent in its content moderation policy." Emerson Brooking, a disinformation expert at the Atlantic Council's Digital Forensic Research Lab, said: "Back in the Wild West period of content moderation, like 2014 or 2015, maybe they could have gotten away with it, but it stands in marked contrast with how other companies run themselves today." Investors took profits on Friday while they could ahead of the weekend, explained Tom Essaye, founder of Sevens Report Research. Saturday and Sunday could easily bring unfortunate news on the war front—and traders would rather be able to sell any recent winnings at Friday’s earlier prices than wait for a potentially lower price at Monday’s open. In addition, Telegram now supports the use of third-party streaming tools like OBS Studio and XSplit to broadcast live video, allowing users to add overlays and multi-screen layouts for a more professional look.
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